Photometric Calibration of the Swift Ultraviolet/Optical Telescope

Abstract

We present the photometric calibration of the Swift UltraViolet/Optical Telescope (UVOT) which includes: optimum photometric and background apertures, effective area curves, colour transformations, conversion factors for count rates to flux, and the photometric zero points (which are accurate to better than 4 per cent) for each of the seven UVOT broadband filters. The calibration was performed with observations of standard stars and standard star fields that represent a wide range of spectral star types. The calibration results include the position dependent uniformity, and instrument response over the 1600-8000A operational range. Because the UVOT is a photon counting instrument, we also discuss the effect of coincidence loss on the calibration results. We provide practical guidelines for using the calibration in UVOT data analysis. The results presented here supersede previous calibration results.

Minor improvements after referees report. Accepted for publication in MNRAS

References in corpus (2)

• Photometric Calibration of the Swift Ultraviolet/Optical Telescope
• SDSS Standard Star Catalog for Stripe 82: the Dawn of Industrial 1% Optical Photometry

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• Optical and Ultraviolet Observations of A Low-Velocity Type II-Plateau Supernova 2013am in M65
• The use and calibration of read-out streaks to increase the dynamic range of the Swift Ultraviolet/Optical Telescope
• Broadband monitoring tracing the evolution of the jet and disk in the black hole candidate X-ray binary MAXI J1659-152
• The far emission region of the gamma-ray blazar PKS B1424-418
• A long optical plateau in the afterglow of the Extended Emission short GRB 150424A: Evidence for energy injection by a magnetar?
• Synthetic red supergiant explosion model grid for systematic characterization of Type II supernovae
• Rapid Gamma-ray variability of NGC 1275
• The Long-Lived UV "Plateau" of SN 2012aw
• Swift X-ray and UV monitoring of the Classical Nova V458 Vul (Nova Vul 2007)
• The Swift UVOT Stars Survey: I. Methods and Test Clusters
• Breaking the habit - the peculiar 2016 eruption of the unique recurrent nova M31N 2008-12a
• Exploring the connection between parsec-scale jet activity and broadband outbursts in 3C 279
• Optical/UV-to-X-Ray Echoes from the Tidal Disruption Flare ASASSN-14li
• Optical follow-up of the tidal disruption event iPTF16fnl: new insights from X-shooter observations
• Hello Darkness My Old Friend: The Fading of the Nearby TDE ASASSN-14ae
• Discovery of VHE gamma-rays from the BL Lac object PKS 0548-322
• Clues on High Energy Emission Mechanism from Blazar 3C 454.3 during 2015 August Flare
• The ultraluminous GRB 110918A
• Broadband spectral study of the jet-disc emission in the radio-loud narrow-line Seyfert 1 galaxy 1H 0323+342
• The Changing Fractions of Type Ia Supernova NUV-Optical Subclasses with Redshift
• Supernova SN 2012dn: A spectroscopic clone of SN 2006gz
• Swift/XRT monitoring of the Supergiant Fast X-ray Transient IGR J18483-0311 for an entire orbital period
• First detection of hard X-ray photons in the soft X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007: The X-ray photon distribution observed by Swift
• SN 2007uy - metamorphosis of an aspheric Type Ib explosion
• Discovery and Follow-up of the Unusual Nuclear Transient OGLE17aaj
• A Swift Fix for Nuclear Outbursts
• A Closer Look at the Fluctuations in Brightness of SN 2009ip During Its Late 2012 Eruption
• The Rapid X-ray and UV Evolution of ASASSN-14ko
• Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state
• The Rapidly Flaring Afterglow of the Very Bright and Energetic GRB 070125
• Two years of monitoring Supergiant Fast X-ray Transients with Swift
• AT 2020wey and the class of faint and fast Tidal Disruption Events
• The Open Universe VOU-Blazars tool
• Broadband Multi-wavelength Properties of M87 during the 2018 EHT Campaign including a Very High Energy Flaring Episode
• Extremes of the jet-accretion power relation of blazars, as explored by NuSTAR
• Very High Energy outburst of Markarian 501 in May 2009
• Is there a UV/X-ray connection in IRAS 13224-3809?
• A thirteen-year-long broadband view of BL Lac
• H.E.S.S. discovery of very high energy gamma-ray emission from PKS 0625-354
• Testing two-component models on very-high-energy gamma-ray emitting BL Lac objects
• MAGIC detection of short-term variability of the high-peaked BL Lac object 1ES 0806+524
• A panchromatic analysis of starburst galaxy M82: Probing the dust properties
• Testing emission models on the extreme blazar 2WHSP J073326.7+515354 detected at very high energies with the MAGIC telescopes
• Discovery of very high energy gamma-ray emission from the BL Lac object PKS 0301-243 with H.E.S.S
• The central engine of GRB 130831A and the energy breakdown of a relativistic explosion
• Changing-look event in NGC 3516: continuum or obscuration variability?
• Multi-messenger characterization of Mrk 501 during historically low X-ray and $\gamma$-ray activity
• ASASSN-15lh: A Superluminous Ultraviolet Rebrightening Observed by Swift and Hubble
• Variations of the dust properties of M82 with galactocentric distance
• Explaining the moderate UV/X-ray correlation in AGN
• XMMSL2 J144605.0+685735 : a slow tidal disruption event
• Swift observations of Mrk\,421 in selected epochs. iii. Extreme x-ray timing/spectral properties and multiwavelength lognormality in 2015\,December--2018\,April
• NuSTAR and multifrequency study of the two high-redshift blazars S5 0836+710 and PKS 2149-306
• Chandra, HST/STIS, NICER, Swift, and TESS Detail the Flare Evolution of the Repeating Nuclear Transient ASASSN-14ko
• Swift UV/Optical Telescope Imaging of Star Forming Regions in M81 and Holmberg IX
• An X-ray and UV flare from the galaxy XMMSL1 J061927.1-655311
• Long term observations of B2 1215+30 with VERITAS
• VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020
• NuSTAR perspective on high-redshift MeV blazars
• Multiwavelength Study of High-Redshift Blazars
• The quasar PG 0844+349 in an X-ray weak state
• The Swift/UVOT Stars Survey. III. Photometry and Color-Magnitude Diagrams of 103 Galactic Open Clusters
• Broad-line type Ic Supernova SN 2014ad
• Probing the very-high-energy gamma-ray spectral curvature in the blazar PG 1553+113 with the MAGIC telescopes
• Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes
• Investigating the multiwavelength behaviour of the flat spectrum radio quasar CTA 102 during 2013-2017
• Optical spectroscopy of Blazars for the Cherenkov Telescope Array
• A Quasar Catalog with Simultaneous UV, Optical and X-ray Observations by Swift
• Broadband study of blazar 1ES 1959+650 during flaring state in 2016
• Swift Observations of MAXI J1659-152: A Compact Binary with a Black Hole Accretor
• Comparing 3C 120 jet emission at small and large scales
• Extinction and the Dimming of KIC 8462852
• Multiwavelength variability study and search for periodicity of PKS 1510-089
• Hot UV-bright stars of galactic globular clusters
• Simultaneous multi-wavelength campaign on PKS 2005-489 in a high state
• Light curve and SED modeling of the gamma-ray binary 1FGL J1018.6$-$5856: constraints on the orbital geometry and relativistic flow
• New High-z Fermi BL Lacs with the Photometric Dropout Technique
• Investigating the Nature of the Luminous Ambiguous Nuclear Transient ASASSN-17jz
• Extraordinary luminous soft X-ray transient MAXI J0158-744 as an ignition of a nova on a very massive O-Ne white dwarf
• SN 2020kyg and the rates of faint Iax Supernovae from ATLAS
• The awakening of the gamma-ray narrow-Line Seyfert 1 galaxy PKS 1502+036
• Modeling accretion disk emission with generalized temperature profile and its effect on AGN spectral energy distribution
• Long-term and multi-wavelength evolution of a changing-look AGN Mrk 1018
• Suzaku Observations of Luminous Quasars: Revealing the Nature of High-Energy Blazar Emission in Quiescent States
• SN2007ax : An Extremely Faint Type Ia Supernova
• Reverse Shock Emission Revealed in Early Photometry in the Candidate Short GRB 180418A
• The detection of the blazar S4 0954+65 at very-high-energy with the MAGIC telescopes during an exceptionally high optical state
• Discovery of 47-s pulsations in the X-ray source 1RXS J225352.8+624354
• A late jet rebrightening revealed from multi-wavelength monitoring of the black hole candidate XTE J1752-223
• Radio-Gamma-ray connection and spectral evolution in 4C +49.22 (S4 1150+49): the Fermi, Swift and Planck view
• A multiwavelength study of the Magellanic-type galaxy NGC 4449 - I. Modelling the spectral energy distribution, the ionization structure and the star formation history
• Lifting the curtain: The Seyfert galaxy Mrk 335 emerges from deep low-state in a sequence of rapid flare events
• Swift/UVOT follow-up of Gravitational Wave Alerts in the O3 era
• Happy Birthday Swift: Ultra-long GRB141121A and its broad-band Afterglow
• The GALAH Survey and Symbiotic Stars. I. Discovery and follow-up of 33 candidate accreting-only systems
• The Swift/UVOT catalogue of NGC4321 star forming sources: A case against density wave theory
• On the observational behaviour of the highly polarized Type IIn supernova SN 2017hcc
• Ultraviolet and X-ray variability of NGC 4051 over 45 days with XMM-Newton and Swift
• Discovery of high and very high-energy emission from the BL Lac object SHBL J001355.9-185406
• The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma rays
• 3C 279 in Outburst in June 2015: A Broadband-SED Study Based on the INTEGRAL Detection
• A Coupled Analysis of Atmospheric Mass Loss and Tidal Evolution in XUV Irradiated Exoplanets: the TRAPPIST-1 Case Study
• ASASSN-15pz: Revealing Significant Photometric Diversity among 2009dc-like, Peculiar SNe Ia
• First hard X-ray observations of the blazar S5 0716+714 with NuSTAR during a multiwavelength campaign
• An X-ray-UV correlation in Cen X-4 during quiescence
• Studying X-ray reprocessing and continuum variability in quasars: PG 1211+143
• The TANAMI Multiwavelength Program: Dynamic SEDs of Southern Blazars
• Variability and Spectral Characteristics of Three Flaring Gamma-ray Quasars Observed by VERITAS and Fermi-LAT
• Multi-Wavelength Coverage of State Transitions in the New Black Hole X-Ray Binary Swift J1910.2-0546
• The AGN nature of three INTEGRAL sources: IGR J18249-3243, IGR J19443+2117 and IGR J22292+6647
• Long-term monitoring of PKS0558-504 with Swift: the disc-corona link
• Optical and X-ray discovery of the changing-look AGN IRAS23226-3843 showing extremely broad and double-peaked Balmer profiles
• Long-term optical, UV, and X-ray continuum variations in the changing-look AGN HE 1136-2304
• First broadband characterization and redshift determination of the VHE blazar MAGIC J2001+439
• UV-Optical Observation of Type Ia Supernova SN 2013dy in NGC 7250
• The multi-wavelength view of shocks in the fastest nova V1674 Her
• Very high energy $\gamma$-ray emission from two blazars of unknown redshift and upper limits on their distance
• The Loudest Stellar Heartbeat: Characterizing the most extreme amplitude heartbeat star system
• Strong UV and X-ray variability of the Narrow Line Seyfert 1 Galaxy WPVS 007 -- on the nature of the X-ray low state
• Modelling Continuum Reverberation in AGN: A Spectral-Timing Analysis of the UV Variability Through X-ray Reverberation in Fairall 9
• The unusual 2006 dwarf nova outburst of GK Perseii
• Multiwavelength observations of nova SMCN 2016-10a --- one of the brightest novae ever observed
• Electron Cooling in a Young Radio Supernova: SN 2012aw
• Short-Timescale monitoring of the X-ray, UV and broad double-peak emission line of the nucleus of NGC 1097
• Characterizing long-term optical, ultraviolet and X-ray variability in different activity states of OJ 287
• Modeling the Broadband Emission of 3C 454.3
• Relativistic supernova ejecta colliding with a circumstellar medium: an application to the low-luminosity GRB 171205A
• EVLA Nova Project Observations of the Classical Nova V1723 Aquilae
• Tracking the year-to-year variation in the spectral energy distribution of the Narrow-line Seyfert 1 Galaxy Mrk335
• The vanishing of the primary emission region in PKS 1510-089
• From Out of the Blue: Swift Links 2002es-like, 2003fg-like, and Early-Time Bump Type Ia Supernovae
• X-ray and UV Monitoring of the Seyfert 1.5 Galaxy Markarian 817
• The Eruption of the Candidate Young Star ASASSN-15qi
• Estimating the redshift of PKS 0447-439 through its GeV-TeV emission
• Ultraviolet number counts of galaxies from Swift UV/Optical Telescope deep imaging of the Chandra Deep Field South
• Probing the gamma-ray variability in 3C279 using broadband observations
• A Novel Approach in Constraining Electron Spectra in Blazar Jets: The Case of Markarian 421
• The origin of seed photons for Comptonization in the black hole binary Swift J1753.5-0127
• Insights into the emission of the blazar 1ES 1011+496 through unprecedented broadband observations during 2011 and 2012
• Correlated X-ray/UV/optical emission and short term variability in a Seyfert 1 galaxy NGC 4593
• XMM-Newton observations of eleven intermediate polars and possible candidates
• Accretion Onto the Supermassive Black Hole in the High-redshift Radio-loud AGN 0957+561
• Simultaneous broadband observations and high-resolution X-ray spectroscopy of the transitional millisecond pulsar PSR J1023+0038
• Black hole candidate XTE J1752-223: Swift observations of canonical states during outburst
• Spectroscopic classification, variability and SED of the Fermi-detected CSS 3C 286: the radio-loudest NLS1 galaxy?
• A $Chandra-Swift$ View of Point Sources in Hickson Compact Groups: High AGN fraction but a dearth of strong AGNs
• Probable Dormant Neutron Star in a Short-Period Binary System
• ASASSN-16fp (SN 2016coi): A transitional supernova between Type Ic and broad-lined Ic
• Stellar Populations in Compact Galaxy Groups: a Multi-Wavelength Study of HCGs 16, 22, and 42, their Star Clusters and Dwarf Galaxies
• Swift observations of the 2015 outburst of AG Peg -- from slow nova to classical symbiotic outburst
• Multiwavelength Study of the Quiescent States of Six Brightest Flat Spectrum Radio Quasars detected by Fermi-LAT
• Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020
• Long-term monitoring of Ark 120 with Swift
• New high-z BL Lacs using the photometric method with Swift and SARA
• A photometric redshift of $z=1.8_{-0.3}^{+0.4}$ for the \agile GRB 080514B
• Dissecting the broadband emission from γ-ray blazar PKS 0735+178 in search of neutrinos
• Reddened, Redshifted, or Intrinsically Red? Understanding Near-Ultraviolet Colors of Type Ia Supernovae
• Variable optical polarization during high state in gamma-ray loud narrow line Seyfert 1 galaxy 1H 0323+342
• Photospheric Prompt Emission From Long Gamma Ray Burst Simulations -- II. Spectropolarimetry
• The "Giraffe": Discovery of a stripped red giant in an interacting binary with a $\sim 2M_{\odot }$ lower giant
• A short gamma-ray burst from a proto-magnetar remnant
• Nova M31N 2007-12b: Supersoft X-rays reveal an intermediate polar?
• SN 2010kd: Photometric and Spectroscopic Analysis of a Slow-Decaying Superluminous Supernova
• Multiwavelength Study of an X-ray Tidal Disruption Event Candidate in NGC 5092
• SN 2018gj: A Short-plateau Type II Supernova with Persistent Blue-shifted H-alpha Emission
• Insights into the broad-band emission of the TeV blazar Mrk 501 during the first X-ray polarization measurements
• UV SEDs of early-type cluster galaxies: A new look at the UV upturn
• A Large Catalog of Homogeneous Ultra-Violet/Optical GRB Afterglows: Temporal and Spectral Evolution
• Supernovae powered by magnetars that transform into black holes
• GRB 081029: A Gamma-Ray Burst with a Multi-Component Afterglow
• Constraints on the location of $\gamma$-ray emitting region for a sample of blazars with radio core-shift measurements
• High energy variability of 3C 273 during the AGILE multiwavelength campaign of December 2007 - January 2008
• Is CGCS 5926 a symbiotic X-ray binary?
• The optical rebrightening of GRB100814A: an interplay of forward and reverse shocks?
• Swift follow-up of 13 INTEGRAL sources
• The pre-perihelion activity of dynamically new comet C/2013 A1 (Siding Spring) and its close encounter with Mars
• The strange case of the transient HBL blazar 4FGL J1544.3-0649
• Circumstellar Shells in Absorption in Type Ia Supernovae
• Searching for new gamma-ray blazar candidates in the 3rd Palermo BAT Hard X-ray Catalog with WISE
• Investigating early-type galaxy evolution with a multiwavelength approach. II. The UV structure of 11 galaxies with Swift-UVOT
• Simultaneous observations of the blazar PKS2155-304 from Ultra-Violet to TeV energies
• The Exotic Type Ic Broad-Lined Supernova SN 2018gep: Blurring the Line Between Supernovae and Fast Optical Transients
• Broadband Study of High-Synchrotron-Peaked BL Lac Object 1ES 1218+304
• The outburst of the changing-look AGN IRAS23226-3843 in 2019
• GRB 070125 and the environments of spectral-line poor afterglow absorbers
• Swift/XRT monitoring of the candidate Supergiant Fast X-ray Transient IGR J16418-4532
• Flares in the changing look AGN Mrk 590. I: The UV response to X-ray outbursts suggests a more complex reprocessing geometry than a standard disk
• Prompt-to-afterglow transition of optical emission in a long gamma-ray burst consistent with a fireball
• Discovery of the neutron star spin and a possible orbital period from the Be/X-ray binary IGR J05414-6858 in the LMC
• Peculiarities in the horizontal branch stars of globular cluster NGC 1851: Discovery of a Blue straggler companion to an EHB star
• The fast transient AT 2023clx in the nearby LINER galaxy NGC 3799 as a tidal disruption of a very low-mass star
• A significant hardening and rising shape detected in the MeV/GeV nuFnu spectrum from the recently-discovered very-high-energy blazar S4 0954+65 during the bright optical flare in 2015 February
• The origin of the early time optical emission of Swift GRB 080310
• The supernova impostor PSN J09132750+7627410 and its progenitor
• Pan-chromatic observations of the remarkable nova LMC 2012
• The Ultraviolet and Infrared Star Formation Rates of Compact Group Galaxies: An Expanded Sample
• Ultraviolet Spectroscopy of Asteroid (4) Vesta
• Multi-wavelength Observations of the Type IIb Supernova 2009mg
• Early Ultra-Violet observations of type IIn supernovae constrain the asphericity of their circumstellar material
• SN 2015bp: adding to the growing population of transitional type Ia supernovae
• RX J0529.8-6556: a BeXRB pulsar with an evolving optical period and out of phase X-ray outbursts
• FBQS J1644+2619: multiwavelength properties and its place in the class of gamma-ray emitting Narrow Line Seyfert 1s
• The K2 M67 Study: Precise Mass for a Turnoff Star in the Old Open Cluster M67
• Swift/UVOT Photometry of the Planetary Nebula WeBo 1: Unmasking A Faint Hot Companion Star
• Multiple Flares in the Changing-Look AGN NGC 5273
• The Swift/UVOT Stars Survey. II. RR Lyrae Stars in M 3 and M 15
• Long-term multi-wavelength study of 1ES 0647+250
• Properties of interstellar dust responsible for extinction laws with unusually low total-to-selective extinction ratios of Rv=1-2
• PKS 2123-463: a confirmed gamma-ray blazar at high redshift
• Two new bursting neutron star low-mass X-ray binaries: Swift J185003.2-005627 and Swift J1922.7-1716
• MOMO V. Effelsberg, Swift and Fermi study of the blazar and supermassive binary black hole candidate OJ 287 in a period of high activity
• Discovery and Follow-up of ASASSN-23bd (AT 2023clx): The Lowest Redshift and Least Luminous Tidal Disruption Event To Date
• Light-Curve Structure and Halpha Line Formation in the Tidal Disruption Event AT 2019azh
• The Ultraviolet Colors of Type Ia Supernovae and their Photospheric Velocities
• Hunting distant BL Lacs with the photometric technique using Swift and SARA
• Unveiling the broadband spectral and temporal properties of PKS\,0903-57 during its brightest flare
• Simultaneous multiwavelength observations of V404 Cygni during its 2015 June outburst decay strengthen the case for an extremely energetic jet-base
• The Evolution of the Far-UV Luminosity Function and Star Formation Rate Density of the Chandra Deep Field South from z=0.2-1.2 with Swift/UVOT
• Galaxy evolution in groups. NGC 3447/NGC 3447A: the odd couple in LGG 225
• Strong and Rapid X-ray Variability of the Super-Eddington Accreting Quasar SDSS J081456.10+532533.5
• The flat-spectrum radio quasar 3C 345 from the high to the low emission state
• A Partial Eclipse of the Heart: The Absorbed X-ray Low State in Mrk 1048
• The path to Z And-type outbursts: The case of V426 Sagittae (HBHA 1704-05)
• Investigating the {Origin} of the Absorption-Line Variability in Narrow-Line Seyfert 1 Galaxy WPVS 007
• A Search for Lyman Break Galaxies in the CDF-S Using Swift UVOT
• Swift follow-up observations of unclassified ASCA sources
• Multiwavelength Follow-up Observations of the Tidal Disruption Event Candidate 2XMMi J184725.1-631724
• H.E.S.S. Monitoring of PKS 2155-304 in 2015 and 2016
• Measurement of Interstellar Polarization and Estimation of Galactic Extinction for the Direction of X-ray Black Hole Binary V404 Cygni
• The beamed jet and quasar core of the distant blazar 4C 71.07
• Taking a break: paused accretion in the symbiotic binary RT Cru
• Low frequency radio continuum imaging and SED modeling of 11 LIRGs: radio-only and FUV to radio bands
• VLT Suzaku observations of the Fermi pulsar PSR J1028-5819
• Broadband study of BL Lac during flare of 2020: Spectral evolution and emergence of HBL component
• Fires in the deep: The luminosity distribution of early-time gamma-ray-burst afterglows in light of the Gamow Explorer sensitivity requirements
• Multiwavelength study of RX J2015.6+3711: a magnetic cataclysmic variable with a 2-hr spin period
• Swift observations of the ultraluminous X-ray source XMMU J004243.6+412519 in M31
• Swift X-ray and ultraviolet observations of the shortest orbital period double-degenerate system RX J0806.3+1527 (HM Cnc)
• A Precursor Plateau and Pre-Maximum [O II] Emission in the Superluminous SN2019szu: A Pulsational Pair-Instability Candidate
• Temporal variability and estimation of jet parameters for Ton 599
• Flaring activity from magnetic reconnection in BL Lacertae
• T CrB: overview of the accretion history, Roche-lobe filling, orbital solution, and radiative modeling
• X-ray Absorption and Optical Extinction in the Partially Obscured Seyfert Nucleus in Mrk 1393
• A catalog of optical to X-ray spectral energy distributions of z~2 quasars observed with Swift. I: First results
• B2 0954+25A: a typical Fermi blazar or a gamma-loud Narrow Line Seyfert 1
• Swift/UVOT: 18 Years of Long GRB Discoveries and Advances
• Multiwavelength study of the gravitationally lensed blazar QSO B0218+357 between 2016 and 2020
• A probable pre-main sequence chemically peculiar star in the open cluster Stock 16
• Swift UVOT observations of the 2015 outburst of V404 Cygni
• The Extremely Metal-Poor SN 2023ufx: A Local Analog to High-Redshift Type II Supernovae
• Unravelling the unusually curved X-ray spectrum of RGB J0710+591 using AstroSat observations
• Identification of gamma-ray emission from 3C345 and NRAO512
• The characterization of the distant blazar GB6 J1239+0443 from flaring and low activity periods
• Search for TeV $\gamma$--ray emission from blazar 1ES1218+304 with TACTIC telescope during March-April 2013
• From Radio to TeV: The surprising Spectral Energy Distribution of AP Librae
• Multi Frequency Temporal and Spectral variability study of Blazar PKS 1424-418
• Gamma-ray-emitting narrow-line Seyfert 1 galaxies: the Swift view
• The Ultraviolet Brightest Type Ia Supernova 2011de
• Euclid preparation. XXIX. Water ice in spacecraft part I: The physics of ice formation and contamination
• VERITAS Observations of Six Bright, Hard-Spectrum Fermi-LAT Blazars
• Collimation of the kiloparsec-scale radio jets in NGC 2663
• A time domain experiment with Swift: monitoring of seven nearby galaxies
• THA 15-31: Discovery with VLT/X-Shooter and Swift/UVOT of a new symbiotic star of the accreting-only variety
• Photospheric Prompt Emission From Long Gamma Ray Burst Simulations -- I. Optical Emission
• Multi-wavelength view of the galactic black-hole binary GRS 1716-249
• Multiwavelength variability of gamma-ray emitting narrow-line Seyfert 1 galaxies
• Is there a connection between Broad Absorption Line Quasars and Narrow Line Seyfert 1 galaxies?
• Simultaneous Swift X-ray and UV views of comet C/2007 N3 (Lulin)
• NICER, NuSTAR, and Swift follow-up observations of the $\gamma$-ray flaring blazar BL Lacertae in 2020 August-October
• The NGC 454 system: anatomy of a mixed on-going merger
• Highly luminous supernovae associated with gamma-ray bursts II. The luminous blue bump in the afterglow of GRB 140506A
• The variability patterns of the TeV blazar PG 1553+113 from a decade of MAGIC and multi-band observations
• Understanding the nature of the blazar CGRaBS~J0211$+$1051
• LMC S154: the first Magellanic symbiotic recurrent nova
• Swift J201424.9+152930: discovery of a new deeply eclipsing binary with 491 s and 3.4 h modulations
• V902 Monocerotis: a likely disc-accreting intermediate polar
• Swift follow-up of unidentified X-ray sources in the XMM-Newton Slew Survey
• Multiwavelength observations of GRB 140629A. A long burst with an achromatic jet break in the optical and X-ray afterglow
• INTEGRAL observations of the GeV blazar PKS1502+106 and of the hard X-ray bright Seyfert Galaxy Mkn841
• A Cautionary Tale of Attenuation in Star Forming Regions
• Kinetic powers of the relativistic jets in Mrk 421 and Mrk 501
• SN 2017hpa: A carbon-rich type Ia supernova
• Multiple giant eruptions and X-ray emission in the recoiling AGN/LBV candidate SDSS1133
• X-ray and ultraviolet observations of the eclipsing cataclysmic variables OV Bootis and SDSS J103533.02+055158.3 with degenerate donors
• An optical-ultraviolet flare with absolute AB magnitude of -39.4 detected in GRB 220101A
• Multi-wavelength observations of multiple eruptions of the recurrent nova M31N 2008-12a
• Evolution of broad-band SED during outburst rise in NS X-ray Nova Aql X-1
• Optical photometry and spectroscopy of the low-luminosity, broad-lined Ic supernova iPTF15dld
• X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States
• Swift/UVOT+MaNGA (SwiM) Value-added Catalog
• Multiwavelength Observations of the Blazar VER J0521+211 During an Elevated TeV Gamma-Ray State
• The Repeating Flaring Activity of Blazar AO 0235+164
• Steps towards a solution of the FS Aurigae puzzle. II. Confirmation of the intermediate polar status
• First detection of VHE gamma-ray emission from TXS~1515--273, study of its X-ray variability and spectral energy distribution
• IGR J12319-0749: evidence for another extreme blazar found with INTEGRAL
• Variations of the physical parameters of the blazar Mrk 421 based on the analysis of the spectral energy distributions
• Swift J1728.9-3613 is a black hole X-ray binary: spectral and timing study using NICER
• GlobULeS-V. UVIT/AstroSat studies of stellar populations in NGC 362: Detection of Blue Lurkers in a Globular Cluster
• Radio VLBA polarization and multi-band monitoring of the high-redshift quasar S5 0836+710 during a high activity period
• Swift monitoring of Cygnus X-2: investigating the NUV-X-ray connection
• Correlations between $\gamma$-ray luminosity and magnetization of the jet as well as relativistic electron injection power:cases for Mrk 421, 3C 454.3 and 3C 279
• Insights from the first flaring activity of a high-synchrotron-peaked blazar with X-ray polarization and VHE gamma rays
• Origin of multiwavelength emission from flaring high redshift blazar PKS 0537-286
• A comprehensive study of 2019-2020 flare of OJ 287 using AstroSat, Swift, and NuSTAR
• A study of gamma-ray burst afterglows as they first come into view of the Swift Ultraviolet and Optical Telescope
• Faint NUV/FUV Standards from Swift/UVOT, GALEX and SDSS Photometry
• Multi-wavelength study of the short term TeV flaring activity from the blazar Mrk 501 observed in June 2014
• On the Injection of Relativistic Electrons in the Jet of 3C 279
• Near-ultraviolet detections of four dwarf nova candidates in the globular cluster 47 Tucanae
• NuSTAR Observations and multi-wavelength modeling of the high-redshift BL Lac Object 4FGL J2146.5-1344
• Measuring Dust Attenuation Curves of SINGS/KINGFISH Galaxies Using Swift/UVOT Photometry
• The Unusually Luminous Extragalactic Nova SN 2010U
• The Awakening Beast in the Seyfert 1 Galaxy KUG 1141+371 I
• Is HE 0436-4717 Anemic? A deep look at a bare Seyfert 1 galaxy
• Constraining X-ray emission in HBL blazars using multiwavelength observations
• X-ray and UV observations of V751 Cyg in an optical high state
• Insights into the Long-Term Flaring Events of Blazar PKS 0805-07: A Multi-Wavelength Analysis over the 2009-2023 Period
• Short time-scale variability of $\gamma$-ray-emitting narrow-line Seyfert 1 galaxies in optical and UV bands
• Evolution of the disc atmosphere in the X-ray binary MXB 1659-298, during its 2015-2017 outburst
• Optimal Coaddition of Imaging Data for Rapidly Fading Gamma-Ray Burst Afterglows
• Multi-wavelength Observations of the 2015 Nova in the Local Group Irregular Dwarf Galaxy IC 1613
• AT2021acak: a candidate tidal disruption event found in the Zwicky Transient Facility survey
• A Method to Measure Photometries of Moderately-Saturated UVOT Sources
• Multiwavelength monitoring of a very active dwarf nova AX J1549.8$-$5416 with an unusually high duty cycle
• Spectral Energy Distribution profiles from AGN accretion disc in multi-gap setup
• Nine years of multi-frequency monitoring of the blazar PKS 0048-097: spectral and temporal variability
• Contemporaneous broadband observations of three high-redshift BL Lac Objects
• X-ray and UV observations of nova V598 Puppis between 147 and 255 days after outburst
• Temporal and Spectral Study of PKS B1222+216 Flares in 2014
• TUVOpipe: a pipeline to search for UV transients with Swift-UVOT
• Two active states of the narrow-line gamma-ray-loud AGN GB 1310+487
• Clockwise evolution in the hardness-intensity diagram of the black hole X-ray binary Swift J1910.2-0546
• Swift Monitoring Observations of Mrk 231: Detection of Ultraviolet Variability
• VERITAS and multiwavelength observations of the Blazar B3 2247+381 in response to an IceCube neutrino alert
• Analysing the Suzaku Spectra of the Broad-Line Seyfert 1 Galaxy CBS 126
• GRB 241105A: A test case for GRB classification and rapid r-process nucleosynthesis channels
• The origin of UV/optical emission in the black hole low-mass X-ray binary Swift J1753.5-0127
• Multi-wavelength study of OT 081: broadband modelling of a transitional blazar
• VHE $\gamma$-ray discovery and multi-wavelength study of the blazar 1ES 2322-409
• Insights into the evolution of five isolated galaxies
• The Supernovae Analysis Application (SNAP)
• An emergence of new polarized emission region in blazar Mrk 421 associated with X-ray flare
• Very-high-energy gamma-ray detection and long-term multi-wavelength view of the flaring blazar B2 1811+31
• Multi-wavelength observation of MAXI J1348$-$630 during the outburst in 2019
• H.E.S.S. discovery of very-high-energy gamma-ray emission of PKS 1440-389
• Modelling the variable broad-band optical/UV/X-ray spectrum of PG1211+143: Implications for the ionized outflow
• Constraining eV-scale axion-like particle dark matter: insights from the M87 Galaxy
• Building spectral templates and reconstructing parameters for core collapse supernovae with CASTOR
• The polar Catalysmic Variable 1RXS J173006.4+033813
• Extragalactic transient candidates in the Second Swift-XRT Point Source catalogue
• Not so Swift: 20 years of multiwavelength observations of Mrk 421 and Mrk 501
• Persistent nuclear burning in Nova Sgr 2016 N.4 (= V5856 Sgr = ASASSN-16ma) six years past its outburst
• X Ray Detection of GJ 581 and simultaneous UV Observations
• First detection of VHE gamma-ray signal from the FSRQ TON 0599
• GRB 180728A and SN 2018fip: the nearest high-energy cosmological gamma-ray burst with an associated supernova
• Swift, NuStar and XMM-Newton observations of the NLS1 galaxy RX J2317.8-4422 in an extreme X-ray low flux state
• Extract cleaned Swift/UVOT UV grism spectra with uvotpy package
• Comparisons of Type Ia Supernova Light Curves in the UV and Optical with the Swift Ultra-Violet/Optical Telescope
• Multi-wavelength observations of the Blazar 4C +28.07
• Type Ia supernovae SN 2013bz, PSN J0910+5003 and ASASSN-16ex: similar to 09dc-like?
• Intensive X-ray/UVOIR continuum reverberation mapping of the Seyfert AGN MCG+08-11-11
• Multiwavelength spectral and temporal analysis of VHE Blazar 1ES 1959+650: Tracing emission mechanisms across flux states
• TUVO-21acq: a new cataclysmic variable discovered through a UV outburst
• Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020
• Untangling the Complex Nature of AGN Variability with Fairall 9
• V1047 Cen: The first Z And-type outburst observed in the classical nova binary
• The Stripped-Star Ultraviolet Magellanic Cloud Survey (SUMS): The UV Photometric Catalog and Stripped Star Candidate Selection
• 20 years of monitoring: PKS 2155-304 and PKS 1510-089 in the eyes of Swift and Fermi. I. The case of PKS 2155-304
• Discovery of a probable very fast extragalactic nova in a symbiotic binary
• Electron-capture Supernova Candidates from Light Curves: Implications for Their Progenitors and Explosion Properties
• Broadband Spectral Analysis of 1ES2344+514: A Multi-epoch study
• Unveiling SN 2022eyw: A Bright Member of the Type Iax Supernova Subclass
• SMSS J130522.47-293113.0: a high-latitude stellar X-ray source with pc-scale outflow relics?
• A multi-wavelength view of the open cluster NGC 2527: Discovery of active stars
• Probing a cosmogenic origin of astrophysical neutrinos and cosmic rays using gamma-ray observations of TXS 0506+056
• GOTO identification and broadband modelling of the counterpart to the SVOM GRB 250818B
• The peculiar nebula Simeis 57: II. Distance, nature and excitation
• Extreme Blazars Observed with MAGIC: Second Catalog Release
• 20 years of monitoring: PKS 2155-304 and PKS 1510-089 in the eyes of Swift and Fermi. II. PKS 1510-089 and comparison
• GRB 160410A: the first Chemical Study of the Interstellar Medium of a Short GRB
• Photometry of Some Recent Gamma-ray Bursts