WFPC2 Stellar Photometry with HSTphot

Abstract

HSTphot, a photometry package designed to handle the undersampled PSFs found in WFPC2 images, is introduced and described, as well as some of the considerations that have to be made in order to obtain accurate PSF-fitting stellar photometry with WFPC2 data. Tests of HSTphot's internal reliability are made using multiple observations of the same field, and tests of external reliability are made by comparing with DoPHOT reductions of the same data.

33 pages, 7 figures Accepted for publication in October 2000 PASP

Cited by in corpus (720)

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• First stellar spectroscopy in Leo P
• Optical Observations of the Type Ic Supernova 2007gr in NGC 1058 and Implications for the Properties of its Progenitor
• The Deepest HST Color-Magnitude Diagram of M32: Evidence for Intermediate-Age Populations
• Possible Recovery of SN 1961V In Hubble Space Telescope Archival Images
• Still Brighter than Pre-Explosion, SN 2012Z Did Not Disappear: Comparing Hubble Space Telescope Observations a Decade Apart
• What Powers the 3000-Day Light Curve of SN 2006gy?
• The stellar population content of the thick disk and halo of the Milky Way analogue NGC 891
• Constraints on the Binary Companion to the SN Ic 1994I Progenitor
• Lucky Imaging of transiting planet host stars with LuckyCam
• A puzzling millisecond pulsar companion in NGC 6266
• A Complete Census of Luminous Stellar Variability on Day to Decade Timescales
• Mapping the Escape Fraction of Ionizing Photons Using Resolved Stars: A Much Higher Escape Fraction for NGC 4214
• Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption
• Pegasus W: An Ultra-Faint Dwarf Galaxy Outside the Halo of M31 Not Quenched by Reionization
• Near-Infrared Variability Study of the Central 2.3 arcmin x 2.3 arcmin of the Galactic Centre II. Identification of RR Lyrae Stars in the Milky Way Nuclear Star Cluster
• A Re-Evaluation of the Evolved Stars in the Globular Cluster M13
• JWST-TST Proper Motions: I. High-Precision NIRISS Calibration and Large Magellanic Cloud Kinematics
• Stellar mass segregation as separating classifier between globular clusters and ultra-faint dwarf galaxies
• Gas-rich, field ultra-diffuse galaxies host few globular clusters
• The nature of supernovae 2010O and 2010P in Arp 299 - I. Near-infrared and optical evolution
• Optical and X-ray Observations of M31N 2007-12b: An Extragalactic Recurrent Nova with a Detected Progenitor?
• Star Formation Histories of the LEGUS Dwarf Galaxies (I): recent History of NGC1705, NGC4449 and Holmberg II
• Determination of the Local Hubble Constant from Virgo Infall Using TRGB Distances
• Dwarf elliptical galaxies in Centaurus A group: stellar populations in AM 1339-445 and AM 1343-452
• The low-mass pre-main sequence population of the stellar association LH 52 in the Large Magellanic Cloud discovered with Hubble Space Telescope WFPC2 Observations
• Not-So-Simple Stellar Populations in the Intermediate-age Large Magellanic Cloud Star Clusters NGC 1831 and NGC 1868
• Discovery of an intermediate-luminosity red transient in M51 and its likely dust-obscured, infrared-variable progenitor
• The ancient stellar population of M32: RR Lyr Variable stars confirmed
• The Araucaria Project: The Distance to NGC 300 from the Red Giant Branch Tip using HST/ACS imaging
• The changing-type SN 2014C may come from an 11-$M_{\odot }$ star stripped by binary interaction and violent eruption
• Proper Motion of the Draco Dwarf Galaxy Based On Hubble Space Telescope Imaging
• Observations of SN 2015F suggest a correlation between the intrinsic luminosity of Type Ia supernovae and the shape of their light curves >900 days after explosion
• Timing the r-Process Enrichment of the Ultra-Faint Dwarf Galaxy Reticulum II
• A Photometric Survey of Globular Cluster Systems in Brightest Cluster Galaxies
• The luminous red nova variety: AT 2020hat and AT 2020kog
• Hubble Space Telescope Imaging of the Outburst Site of M31 RV
• The Stellar Content and Star Formation History of the late-type spiral galaxy NGC 300 from Hubble Space Telescope observations
• Tracing the anemic stellar halo of M101
• Hot HB stars in globular clusters - Physical parameters and consequences for theory. VI. The second parameter pair M 3 and M 13
• Discovery of the Pre-Main Sequence Population of the Stellar Association LH 95 in the Large Magellanic Cloud with Hubble Space Telescope ACS Observations
• Microlensing optical depth and event rate in the OGLE-IV Galactic plane fields
• The dusty aftermath of SN Hunt248: merger-burst remnant?
• The clustered nature of star formation. Pre--main-sequence clusters in the star-forming region NGC 602/N90 in the Small Magellanic Cloud
• A UV census of the environments of stripped-envelope supernovae
• The Nature of the Ultraluminous Oxygen-Rich Supernova Remnant in NGC 4449
• The binary fraction of the young cluster NGC 1818 in the Large Magellanic Cloud
• Formation Timescales for High-Mass X-ray Binaries in M33
• HST/ACS colour-magnitude diagrams of M31 globular clusters
• An Echo of Supernova 2008bk
• The ACS LCID project IV: detection of the RGB bump in isolated galaxies of the Local Group
• Discovery of a Significant Magnetic CV Population in the Limiting Window
• Exploring the role of binarity in the origin of the bimodal rotational velocity distribution in stellar clusters
• Discovery and Rapid Follow-up Observations of the Unusual Type II SN 2018ivc in NGC 1068
• Faint BVRI Photometric Sequences in Selected Fields
• A recently quenched isolated dwarf galaxy outside of the Local Group environment
• A Proper Motion Survey for White Dwarfs with the Wide Field Planetary Camera 2
• The M31 Near-Infrared Period-Luminosity Relation and its non-linearity for $\delta$ Cep Variables with $0.5\le \log (P)\le 1.7$
• Powerful CMD: A Tool for Colour-Magnitude Diagram Studies
• A Dramatic Decrease in Carbon Star Formation in M31
• A hot and luminous source at the site of the fast transient AT2018cow at 2-3 years after its explosion
• On the Progenitor of Supernova 2001du in NGC 1365
• A high mass progenitor for the Type Ic Supernova 2007gr inferred from its environment
• The origin of the late-time luminosity of supernova 2011dh
• Dust to Dust: 3 years in the Evolution of the Unusual SN 2008S
• Discovery of a Gas-Rich Companion to the Extremely Metal-Poor Galaxy DDO 68
• Optical identification of the companion to PSR J1911-5958A, the pulsar binary in the outskirts of NGC 6752
• The Age of the Old Metal-Poor Globular Cluster NGC6397 Using WFC3/IR Photometry
• Nothing to see here: Failed supernovae are faint or rare
• Detecting Thin Stellar Streams in External Galaxies: Resolved Stars & Integrated Light
• Calibration of BVRI Photometry for the Wide Field Channel of the HST Advanced Camera for Surveys
• MCR-TRGB: A Multiwavelength-Covariant, Robust Tip of the Red Giant Branch Measurement Method
• A High-Resolution Multiband Survey of Westerlund 2 With the Hubble Space Telescope. III. The present-day stellar mass function
• Testing Density Wave Theory with Resolved Stellar Populations around Spiral Arms in M81
• Search for Surviving Companions of Progenitors of Young LMC Type Ia Supernova Remnants
• SN 2005at - A neglected type Ic supernova at 10 Mpc
• HST Survey of Clusters in Nearby Galaxies. I. Detection and Photometry
• A rogues gallery of Andromeda's dwarf galaxies I. A predominance of red horizontal branches
• The Star-forming Region NGC 346 in the Small Magellanic Cloud with Hubble Space Telescope ACS Observations. II. Photometric Study of the Intermediate-Age Star Cluster BS 90
• ChaMPlane Deep Galactic Bulge Survey. I. Faint accretion-driven binaries in the Limiting Window
• Deep Hubble Space Telescope Imaging of Globular Clusters Towards the Galactic Bulge: Observations, Data Reduction and Color-Magnitude Diagrams
• Characterizing the Star Formation of the Low-Mass SHIELD Galaxies from Hubble Space Telescope Imaging
• The Star Formation Histories of Four Fields Spanning the Minor Axis of NGC 6822
• The Candidate Progenitor of the Type IIn SN 2010jl is Not an Optically Luminous Star
• Mass segregation in the outer halo globular cluster Palomar 14
• Constraining Type Ia Supernova Progenitor Scenarios with Extremely Late-time Photometry of Supernova SN 2013aa
• The Enigmatic (Almost) Dark Galaxy Coma P: Distance Measurement and Stellar Populations from HST Imaging
• Progenitor, environment, and modelling of the interacting transient, AT 2016jbu (Gaia16cfr)
• Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud IV: Evidence for Multiple Populations in Hodge 11 and NGC 2210
• An environmental analysis of the fast transient AT2018cow and implications for its progenitor and late-time brightness
• Explanation of a special color-magnitude diagram of star cluster NGC 1651 from different models
• Constraining the age of the NGC 4565 HI Disk Warp: Determining the Origin of Gas Warps
• Panchromatic Hubble Andromeda Treasury XIII: The Cepheid period-luminosity relation in M31
• Physical Structures of the Type Ia Supernova Remnant N103B
• The Candidate Progenitor Companion Star of the Type Ib/c SN 2013ge
• TRGB distances to galaxies in front of the Virgo cluster
• Multimass modelling of Milky Way globular clusters -- I. Implications on their stellar initial mass function above 1 M${}_{\odot }$
• The 100 Myr Star Formation History of NGC 5471 from Cluster and Resolved Stellar Photometry
• The Blue Straggler Population of the Globular Cluster M5: Comparison with M3
• Extragalactic archeology with the GHOSTS Survey I. - Age-resolved disk structure of nearby low-mass galaxies
• The Strikingly Metal-Rich Halo of the Sombrero Galaxy
• A rogues gallery of Andromeda's dwarf galaxies II. Precise Distances to 17 Faint Satellites
• Direct Detections of Young Stars in Nearby Elliptical Galaxies
• Deep Photometry in a Remote M31 Major Axis Field Near G1
• Alone on a wide wide sea. The origin of SECCO 1, an isolated star-forming gas cloud in the Virgo cluster
• The young stellar population of NGC 4214 as observed with HST. I. Data and methods
• Signatures of Tidal Disruption in Ultra-Faint Dwarf Galaxies: A Combined HST, Gaia, and MMT/Hectochelle Study of Leo V
• Peculiar Velocities of Galaxies Just Beyond the Local Group
• The History of Star Formation in Galaxy Disks in the Local Volume as Measured by the ACS Nearby Galaxy Survey Treasury
• The Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region (PHATTER). IV. Star Cluster Catalog
• A New Approach to Convective Core Overshooting: Probabilistic Constraints from Color-Magnitude Diagrams of LMC Clusters
• DDO216-A1: a central globular cluster in a low-luminosity transition type galaxy
• The ACS Nearby Galaxy Survey Treasury VI. The Ancient Star Forming disk of NGC 404
• HST survey of the Orion Nebula Cluster in the H${}_2$O 1.4 $\mu$m absorption band: I. A census of substellar and planetary mass objects
• HST Imaging of the Local Volume Dwarf Galaxies Pisces A&B: Prototypes for Local Group Dwarfs
• On the Nature of the Progenitor of the Type Ia SN2011fe in M101
• Draining the Local Void
• An Upper Mass Limit on a Red Supergiant Progenitor for the Type II-Plateau Supernova SN 2006my
• Evolved Stars in the Core of the Massive Globular Cluster NGC 2419
• The Type IIn Supernova 2010bt: The Explosion of a Star in Outburst
• The globular cluster NGC 6642: Evidence for a depleted mass function in a very old cluster
• X-ray Sources and Their Optical Counterparts in the Galactic Globular Cluster M12 (NGC 6218)
• Searching for the Donor Stars of ULX Pulsars
• ArtPop: A Stellar Population and Image Simulation Python Package
• Blue straggler evolution caught in the act in the Large Magellanic Cloud globular cluster Hodge 11
• The Masses of Supernova Remnant Progenitors in M83
• Auto-consistent metallicity and star formation history of the nearest blue compact dwarf galaxy NGC 6789
• Stellar Structure of Irregular Galaxies. Edge-On Galaxies
• Late-time Observations of Calcium-Rich Transient SN 2019ehk Reveal a Pure Radioactive Decay Power Source
• The M81 Group Dwarf Irregular Galaxy DDO 165. II. Connecting Recent Star Formation with ISM Structures and Kinematics
• New Insight into the stellar mass function of Galactic globular clusters
• Young open clusters in the galactic star forming region NGC 6357
• A peculiar faint satellite in the remote outer halo of M31
• Comparative Analysis of TRGBs (CATs) from Unsupervised, Multi-Halo-Field Measurements: Contrast is Key
• Far-Ultraviolet Spectra of Main-Sequence O Stars at Extremely Low Metallicity
• On The Nature of ultra-faint Dwarf Galaxy Candidates II: The case of Cetus II
• On the Progenitors of Local Group Novae. II. The Red Giant Nova Rate of M31
• Discovery of a Highly Variable Dipping Ultraluminous X-ray source in M94
• The Panchromatic Hubble Andromeda Treasury II. Tracing the Inner M31 Halo with Blue Horizontal Branch Stars
• A year-long plateau in the late-time near-infrared light curves of Type Ia supernovae
• The ACS Nearby Galaxy Survey Treasury VII. The NGC 4214 Starburst and the Effects of Star Formation History on Dwarf Morphology
• The low-mass initial mass function of the field population in the Large Magellanic Cloud with Hubble Space Telescope WFPC2 Observations
• The star formation history of the Sculptor Dwarf Irregular Galaxy
• The ACS Nearby Galaxy Survey Treasury III: Cepheids in the Outer Disk of M81
• An Exceptional Dimming Event for a Massive, Cool Supergiant in M51
• The Spatially-Resolved Mass Function of the Globular Cluster M22
• Short-Period Variable Stars in the M31 Halo
• Star Cluster Classification using Deep Transfer Learning with PHANGS-HST
• HST/WFC3 Observations of Low-Mass Globular Clusters AM 4 and Palomar 13: Physical Properties and Implications for Mass Loss
• The Early Chemical Enrichment Histories of Two Sculptor Group Dwarf Galaxies as Revealed by RR Lyrae Variables
• HST/ACS color-magnitude diagrams of candidate intermediate-age M 31 globular clusters. The role of blue horizontal branches
• No Evidence for Chemical Abundance Variations in the Intermediate-age Cluster NGC 1783
• SN2002bu -- Another SN2008S-like Transient
• On the progenitor of the Type Ic SN 2013dk in the Antennae Galaxies
• On the progenitors of Local Group Novae - I. The M31 Catalog
• The possible disappearance of a massive star in the low metallicity galaxy PHL 293B
• Progenitor Mass Distribution for 22 Historic Core-Collapse Supernovae
• An Empirical Calibration of the Tip of the Red Giant Branch Distance Method in the Near Infrared. I. HST WFC3/IR F110W and F160W Filters
• HST resolves stars in a tiny body falling on the dwarf galaxy DDO 68
• Constraining Type Iax Supernova Progenitor Systems with Stellar Population Aging
• The Whisper of a Whimper of a Bang: 2400 Days of the Type Ia SN 2011fe Reveals the Decay of ${}^{55}$Fe
• Late-Time Observations of ASASSN-14lp Strengthen the Case for a Correlation between the Peak Luminosity of Type Ia Supernovae and the Shape of their Late-Time Light Curves
• Stellar Populations in the Outer Disk and Halo of the Spiral Galaxy M101
• Hubble Space Telescope Imaging of the Ultra-Compact High Velocity Cloud AGC 226067: A stripped remnant in the Virgo Cluster
• Age and structure parameters of a remote M31 globular cluster B514 based on HST, 2MASS, GALEX and BATC observations
• HST Survey of Clusters in Nearby Galaxies. II. Statistical Analysis of Cluster Populations
• Toward a better understanding of supernova environments: a study of SNe 2004dg and 2012P in NGC 5806 with HST and MUSE
• A Panchromatic Study of Massive Stars in the Extremely Metal-Poor Local Group Dwarf Galaxy Leo A
• WFPC2 Observations of Two dSph Galaxies in the M81 Group
• Massive star clusters in ongoing galaxy interactions -- clues to cluster formation
• Is the Giant Elliptical Galaxy NGC5018 a Post-Merger Remnant?
• The Initial Mass Function toward the low-mass end in the Large Magellanic Cloud with HST/WFPC2 Observations
• Tip of the Red Giant Branch Distances with JWST. II. I-band Measurements in a Sample of Hosts of 10 SN Ia Match HST Cepheids
• Project AMIGA: Distance and Metallicity Gradients Along Andromeda's Giant Southern Stream from the Red Clump
• Reconciling optical and radio observations of the binary millisecond pulsar PSR J1640+2224
• A New Transient Ultraluminous X-ray Source in NGC 7090
• A multi-wavelength survey of NGC\,6752: X-ray counterparts, two new dwarf novae, and a core-collapsed radial profile
• Deep near-IR observations of the Globular Cluster M4: Hunting for Brown Dwarfs
• Evidence for a chemical enrichment coupling of globular clusters and field stars in the Fornax dSph
• The supernova impostor PSN J09132750+7627410 and its progenitor
• Hunting for Brown Dwarfs in the Globular Cluster M4: 2nd epoch HST NIR observations
• Far-Ultraviolet Observation of the Globular Cluster NGC 6397
• The Asymptotic Giant Branch and the Tip of the Red Giant Branch as Probes of Star Formation History: The Nearby Dwarf Irregular Galaxy KKH 98
• Near-Infrared Variability Study of the Central 2.3 arcmin x 2.3 arcmin of the Galactic Centre I. Catalog of Variable Sources
• The Variable Star Population of the Globular Cluster B514 in the Andromeda Galaxy
• Accurate photometry of extended spherically symmetric sources
• The Blue Supergiant Progenitor of the Supernova Imposter AT~2019krl
• Metallicity Distribution Function of the Eridanus~II Ultra-Faint Dwarf Galaxy from Hubble Space Telescope Narrow-band Imaging
• Stellar Populations in the Andromeda V Dwarf Spheroidal Galaxy
• Physical Parameters and Properties of 20 Cold Brown Dwarfs in JWST
• Photometric Biases in Modern Surveys
• A Tale of Two Impostors: SN2002kg and SN1954J in NGC 2403
• The Distance and Motion of the Maffei Group
• All Puffed Up: Exploring Ultra-diffuse Galaxy Origins through Galaxy Interactions
• SN 1999ga: a low-luminosity linear type II supernova?
• Panchromatic evolution of three luminous red novae: Forbidden hugs in pandemic times -- IV
• Observational Constraints on the Molecular Gas Content in Nearby Starburst Dwarf Galaxies
• A deep Chandra survey for faint X-ray sources in the Galactic globular cluster M30, and searches for optical and radio counterparts
• The Panchromatic Hubble Andromeda Treasury. VI. The reliability of far-ultraviolet flux as a star formation tracer on sub-kpc scales
• The Massive Star Population in M101. I. The Identification and Spatial Distribution of the Visually Luminous Stars
• Investigating the $M_{GCS}-M_h$ Relation in the Most Massive Galaxies
• Simple Stellar Population Models as probed by the Large Magellanic Cloud Star Cluster ESO 121-SC03
• Evidence of dust grain evolution from extinction mapping in the IC 63 photodissociation region
• The young stellar population in NGC 247 Main properties and hierarchical clustering
• The Distance and Dynamical History of the Virgo Cluster Ultradiffuse Galaxy VCC 615
• Metallicity Distribution Functions of Four Local Group dwarf galaxies
• Determining the Timescale over Which Stellar Feedback Drives Turbulence in the ISM: A Study of four Nearby Dwarf Irregular Galaxies
• On the origin of UV-dim stars: a population of rapidly rotating shell stars?
• A Census of Thermally-Pulsing AGB stars in the Andromeda Galaxy and a First Estimate of their Contribution to the Global Dust Budget
• Hubble Space Telescope Imaging of Isolated Local Volume Dwarfs GALFA-Dw3 and Dw4
• Distance and mass of the NGC 253 galaxy group
• Isolating the young stellar population in the outer disk of NGC 300
• Binary Frequencies in a Sample of Globular Clusters. I. Methodology and Initial Results
• The extended structure of the dwarf irregular galaxy Sagittarius
• On the Reionization-Era Globular Cluster in Low-Mass Galaxy Eridanus II
• AGC 226178 and NGVS 3543: Two deceptive dwarfs towards Virgo
• Finding $\eta$ Car Analogs in Nearby Galaxies Using Spitzer: II. Identification of An Emerging Class of Extragalactic Self-Obscured Stars
• The Massive Star Population in M101. III. Spectra and Photometry of the Luminous and Variable Stars
• HST-ACS photometry of the isolated dwarf galaxy VV124=UGC4879. Detection of the Blue Horizontal Branch and identification of two young star clusters
• The RR Lyrae Variable Population in the Phoenix Dwarf Galaxy
• Discovery of a second outbursting hyperluminous X-ray source
• Optical Counterparts of ULXs and Their Host Environments in NGC 4490/4485
• Old Massive Globular Clusters and the Stellar Halo of the Dwarf Starburst Galaxy NGC 4449
• Resolving the Discrepancy of Distance to M60, a Giant Elliptical Galaxy in Virgo
• Mid-UV Studies of the Transitional Millisecond Pulsars XSS J12270-4859 and PSR J1023+0038 During Their Radio Pulsar States
• A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2
• X-ray and Optical Study of Low Core Density Globular Clusters NGC6144 and E3
• SNhunt151: an explosive event inside a dense cocoon
• The Masses of Supernova Remnant Progenitors in NGC 6946
• Around the Spindle galaxy: the dark halo mass of NGC3115
• New candidates for magnetar counterparts from a deep search with the Hubble Space Telescope
• Central kinematics of the Galactic globular cluster M80
• A New Diagnostic Method for Assessment of Stellar Stratification in Star Clusters
• Coordinated JWST Imaging of Three Distance Indicators in a SN Host Galaxy and an Estimate of the TRGB Color Dependence
• The Distance to the Galaxy Coma P
• SN2010U -- a Luminous Nova in NGC 4214
• Major Substructure in the M31 Outer Halo: the East Cloud
• X-ray spectral and optical properties of a ULX in NGC 4258 (M106)
• RR Lyrae Variables in the Local Group Dwarf Galaxy NGC 147
• The Initial Mass Function in the Extended Ultraviolet Disk of M83
• Tracing the Metal-Poor M31 Stellar Halo with Blue Horizontal Branch Stars
• CLUES about M33: the reversed radial stellar age gradient in the outskirts of Triangulum galaxy
• Is NGC 300 a pure exponential disk galaxy?
• GHOSTS I: A New Faint very Isolated Dwarf Galaxy at D = 12 +/- 2 Mpc
• The Elusive Distance Gradient in the Ultra-Faint Dwarf Galaxy Hercules: A Combined Hubble Space Telescope and Gaia View
• The Search for Failed Supernovae with the Large Binocular Telescope: N6946-BH1, Still No Star
• In search of RR Lyrae type stars in eclipsing binary systems. OGLE052218.07-692827.4: an optical blend
• Chandra X-ray Observatory and Hubble Space Telescope observations of the intermediate-age cluster GLIMPSE-C01
• Multiple Outflows in the Giant Eruption of a Massive Star
• Var C: Long-term photometric and spectral variability of an LBV in M33
• Celestial position of the companion of PSR J1740-5340
• SN 2020pvb: a Type IIn-P supernova with a precursor outburst
• Blast From the Past: Constraining Progenitor Models of SN 1972E
• The Disturbed and Globular Cluster-Rich Ultra-diffuse Galaxy UGC 9050-Dw1
• Peekaboo: the extremely metal poor dwarf galaxy HIPASS J1131-31
• Optical Counterparts of ULXs in NGC 1672
• Possible Optical Detection of the Anomalous X-ray Pulsar CXOU J010043.1-721134
• Distances to Dwarf Galaxies of the Canes Venatici I Cloud
• Does the Oosterhoff Dichotomy Exist in The Andromeda Galaxy? I. The case of G11
• SN 2013ai: a link between hydrogen-rich and hydrogen-poor core-collapse supernovae
• X-ray Limits on the Progenitor System of the Type Ia Supernova 2017ejb
• Chandra and HST Studies of Six Millisecond Pulsars in the Globular Cluster M13
• Dynamical Masses and Mass-to-light Ratios of Resolved Massive Star Clusters. I. NGC 419 and NGC 1846
• Ages of M33 Star Clusters Based on the HST/WFPC2 Photometry
• Search for LBVs in the Local Volume galaxies: study of two stars in NGC 1156
• Dwarf Spheroidal Galaxies in the M101 group and behind it
• A search for the optical counterpart to the magnetar CXOU J010043.1-721134
• Searching for ejected supernova companions in the era of precise proper motion and radial velocity measurements
• Discovery of Two Ultra-Diffuse Galaxies with Unusually Bright Globular Cluster Luminosity Functions via a Mark-Dependently Thinned Point Process (MATHPOP)
• Sequential Star Formation in the Young SMC Region NGC 602: Insights from ALMA
• Blue luminous stars in nearby galaxies - UIT005: a possible link to the luminous blue variable stage
• Panchromatic Hubble Andromeda Treasury IX: A Photometric Survey of Planetary Nebulae in M31
• The massive star population of the Virgo Cluster galaxy NGC 4535
• Anomalous Stellar Populations in LSB Galaxies
• Pre--Main-Sequence stellar populations across Shapley Constellation III. I. Photometric Analysis and Identification
• A Multi-epoch X-ray Study of the Spiral Galaxy NGC 7331
• The First Candidate Colliding-Wind Binary in M33
• The Recent Star Formation History of NGC 5102
• Blue straggler stars beyond the Milky Way. II. A binary origin for blue straggler stars in Magellanic Cloud clusters
• The Smallest Scale of Hierarchy Survey (SSH). II. Extended star formation and bar-like features in the dwarf galaxy NGC 3741: recent merger or ongoing gas accretion?
• Discovery of an Outbursting 12.8 Minute Ultracompact X-Ray Binary
• Observations of the binary pulsar system PSR B1718-19 -- The Role of Tidal Circularisation
• A 2 day orbital period for a redback millisecond pulsar candidate in the globular cluster NGC 6397
• A New Metal-poor Globular Cluster and Resolved Stars in the Outer Disk of the Black Eye Galaxy M64: Implication for the Origin of the Type III Disk Break
• Tests of photometry: the case of the NGC 3370 ACS field
• The HST Non-Detection of SN Ia 2011fe 11.5yr After Explosion Further Restricts Single-Degenerate Progenitor Systems
• Spatial segregation impact on star formation in nearby dwarf spheroidal galaxies
• Asymptotic Giant Branch Stars in the Nearby Dwarf Galaxy Leo P
• Antlia Dwarf Galaxy: Distance, quantitative morphology and recent formation history via statistical field correction
• Major Mergers Mean Major Offset: Drivers of Intrinsic Scatter in The $M_{GCS}-M_h$ Scaling Relation for Massive Elliptical Galaxies
• The HST Key Project galaxies NGC 1326A, NGC 1425 and NGC 4548: New variable stars and massive star population
• Reaching the oldest stars beyond the Local Group: ancient star formation in UGC 4483
• Novae in M51: a New, Much Higher Rate from Multi-epoch HST Data
• Population gradients and photometric metallicities in early- and transition-type dwarf galaxies: Clues from the Sculptor group
• The infrared counterpart and proper motion of magnetar SGR0501+4516
• Optical Counterparts of an Ultraluminous X-Ray Source X-1 in NGC 2500
• M31 PAndromeda Cepheid sample observed in four HST bands
• Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud V: Multiple Populations in ancient Globular Clusters
• The ULX Source X-3 in NGC 4258: A Search for Its X-ray and Optical Properties
• HST WFPC2 Observations of the Peculiar Main Sequence of the Double Star Cluster NGC 2011 in the Large Magellanic Cloud
• Discovery of a rapid, luminous nova in NGC 300 by the KMTNet Supernova Program
• MUSE spectroscopic observations of the Young Massive Cluster NGC1850
• Delayed Stellar Mass Assembly in the Low Surface Brightness Dwarf Galaxy KDG215
• Disappearance of a massive star in the Andromeda Galaxy due to formation of a black hole
• Search for LBVs in the Local Volume galaxies: study of four stars in NGC 4449
• Distance and Reddening of the Isolated Dwarf Irregular Galaxy NGC 1156
• KK 242, a faint companion to the isolated Scd galaxy NGC 6503
• A nearby isolated dwarf: star formation and structure of ESO 006-001
• Discovery of a second eclipsing, bursting neutron-star low-mass X-ray binary in the globular cluster Terzan 6
• The Hubble Space Telescope Advanced Camera for Surveys Emission Line Survey of Andromeda. I: Classical Be Stars
• Discovery of an eclipsing X-ray binary with a 32.69 hour period in M101: an analog of Her X-1 or LMC X-4?
• The Local Ultraviolet to Infrared Treasury I. Survey Overview of the Broadband Imaging
• Candidate Dark Galaxy-2: Validation and Analysis of an Almost Dark Galaxy in the Perseus Cluster
• Exploring the Diversity of Faint Satellites in the M81 Group
• Multiwavelength Study of the X-Ray Bright Supernova Remnant N300-S26 in NGC 300
• The Chicago Carnegie Hubble Program: Improving the Calibration of SNe Ia with JWST Measurements of the Tip of the Red Giant Branch
• Variable Stars in the Large Magellanic Cloud: Discovery of Extragalactic W UMa Binaries
• Bubble in the Whale: Identifying the Optical Counterparts and Extended Nebula for the Ultraluminous X-ray Sources in NGC 4631
• A candidate magnetic helium core white dwarf in the globular cluster NGC 6397
• Is there a dwarf galaxy satellite-of-satellite problem in $\Lambda$CDM?
• Identification of a New Ultraluminous X-ray Source in NGC 1316
• Stellar Subsystems of the Galaxy NGC 2366
• Far-ultraviolet investigation into the galactic globular cluster M30 (NGC 7099): I. Photometry and radial distributions
• Massive stars dying alone: the remote environment of SN 2010jp and its associated late-time source
• Optical Counterparts of ULXs in Two Dwarf Galaxies: NGC 4861 and NGC 4449
• Assessment of Stellar Stratification in Three Young Star Clusters in the Large Magellanic Cloud
• Star Clusters in the Nearby Late-Type Galaxy NGC 1311
• Searching for Surviving Companion in the Young SMC Supernova Remnant 1E 0102.2-7219
• Tidal dwarfs in the M81 group: the second generation?
• Observational dynamics of low-mass stellar systems
• Stellar Ages: A Code to Infer Properties of Stellar Populations
• A constant upper luminosity limit of cool supergiant stars down to the extremely low metallicity of I Zw 18
• Role of host galaxy in the formation of multiple stellar populations: Analysis of NGC 1786 and NGC 1898
• Andromeda XXXV: The Faintest Dwarf Satellite of the Andromeda Galaxy
• Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud: III. Horizontal Branch Morphology
• AT 2017fvz: a nova in the dwarf irregular galaxy NGC 6822
• Leonessa: An Extremely Metal-poor Galaxy Undergoing Secular Chemical Evolution
• KDG 64: a large dwarf spheroidal or a small ultradiffuse satellite of Messier 81
• Accurate positions for the ULXs NGC 7319-X4 and NGC 5474-X1 and limiting magnitudes for their optical counterparts
• Measuring Young Stars in Space and Time -- I. The Photometric Catalog and Extinction Properties of N44
• A new insight of AGC198691 (Leoncino) galaxy with MEGARA at the GTC
• The Curious Radial Distributions of Horizontal Branch Stars in NGC 6441
• A Multiwavelength Classification and Study of Red Supergiant Candidates in NGC 6946
• Spatially-resolved TRGB JWST color-magnitude as a tool to measure fossil stellar metallicity gradients in disk galaxies: NGC 628
• Searching for chemical abundance variations in young star clusters in the Magellanic Clouds: NGC 411, NGC 1718 and NGC 2213
• Star clusters in the dwarf irregular galaxy Leo A
• Orbits of very distant asteroid satellites
• The He abundance in NGC 1850 A and B: are we observing the early stage of formation of multiple populations in a stellar cluster?
• When Do Stars Go BOOM?
• Optical Counterparts of Two Candidate Ultraluminous X-ray Sources in NGC 4536
• Stars Born in the Wind: M82's Outflow and Halo Star Formation
• Exploring the nature of an ultraluminous X-ray source in NGC 628
• Galaxy Properties at the Faint End of the HI Mass Function
• A Low Metallicity Massive Contact Binary Star System Candidate in WLM identified by Hubble and James Webb Space Telescope imaging
• Using the Modified Lognormal Power Law Distribution to Model the Mass Function of NGC 1711
• JWST Observations of Starbursts: Dust Processing in the M82 Superwind
• A study on late time UV-emission in core collapse supernovae and the implications for the peculiar transient AT2018cow
• StraKLIP: A novel pipeline for detection and characterization of close-in faint companions through Karhunen-Loêve Image Processing algorithm
• A low mass, binary-stripped envelope for the Type IIb SN 2024abfo
• The Fast Radio Burst-emitting magnetar SGR 1935+2154 -- proper motion and variability from long-term Hubble Space Telescope monitoring
• Revealing the stellar population of the ultra-obscured Galactic globular cluster Glimpse-C02
• Discovery and Detailed Study of the M31 Classical Nova AT 2023tkw: Evidence for Internal Shocks
• AT 2019qyl in NGC 300: Internal Collisions in the Early Outflow from a Very Fast Nova in a Symbiotic Binary
• M^3D: Mosaicking M33 with MUSE datacubes I. Unveiling the diversity of HII regions in M33 with MUSE
• The Panchromatic Hubble Andromeda Southern Treasury (PHAST). II. The Spatially Resolved Recent Star Formation History in M31
• Possible optical counterparts of ULXs in NGC 1672
• Young, blue, and isolated stellar systems in the Virgo Cluster. II. A new class of stellar system
• Discovery of a deep Seyfert-2 galaxy at z = 0.222 behind NGC 300
• Stellar associations powering HII regions $\unicode{x2013}$ II. Escape fraction of ionizing photons
• Hubble Space Telescope Imaging Reveals That SN 2015bh Is Much Fainter than Its Progenitor
• Isolated massive star candidates in NGC 4242 with GULP
• A Comparative Study of Globular Cluster Systems in UGC 9799 and NGC 1129
• The Young Stellar Population of the Nearby Late-Type Galaxy NGC 1311
• Evidence for Ultra-Diffuse Galaxy Formation Through Tidal Heating of Normal Dwarfs
• The ACS LCID Project: data reduction strategy
• Variable Stars in M31 Stellar Clusters from the Panchromatic Hubble Andromeda Treasury
• The dwarf irregular galaxy NGC 6822. II. Young, intermediate and old stellar populations: comparison between theory and observations