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19912026
Showing 2022 · astro-ph.HEShow all

27 papers · 2 filters

astro-ph.HE2022

The MSPSR catalogue: VLBA astrometry of 18 millisecond pulsars

H. Ding, A. T. Deller, B. W. Stappers +13

With unparalleled rotational stability, millisecond pulsars (MSPs) serve as ideal laboratories for numerous astrophysical studies, many of which require precise knowledge of the di…

astro-ph.HE2022★ 10 cited

Modelling Annual Scintillation Velocity Variations of FRB 20201124A

R. A. Main, S. Bethapudi, V. R. Marthi +5

Compact radio sources exhibit scintillation, an interference pattern arising from propagation through inhomogeneous plasma, where scintillation patterns encode the relative distanc…

astro-ph.HE2022★ 42 cited

BASS XXXIX: Swift-BAT AGN with changing-look optical spectra

Matthew J. Temple, Claudio Ricci, Michael J. Koss +13

Changing-look (CL) AGN are unique probes of accretion onto supermassive black holes (SMBHs), especially when simultaneous observations in complementary wavebands allow investigatio…

astro-ph.HE2022★ 17 cited

Multi-wavelength observations of the obscuring wind in the radio-quiet quasar MR 2251-178

Junjie Mao, G. A. Kriss, H. Landt +11

Obscuring winds driven away from active supermassive black holes are rarely seen due to their transient nature. They have been observed with multi-wavelength observations in a few…

astro-ph.HE2022★ 41 cited

A radio-detected Type Ia supernova with helium-rich circumstellar material

Erik C. Kool, Joel Johansson, Jesper Sollerman +34

Type Ia supernovae (SNe Ia) are thermonuclear explosions of degenerate white dwarf (WD) stars destabilized by mass accretion from a companion star, but the nature of their progenit…

astro-ph.HE2022★ 93 cited

A light in the dark: searching for electromagnetic counterparts to black hole-black hole mergers in LIGO/Virgo O3 with the Zwicky Transient Facility

Matthew J. Graham, Barry McKernan, K. E. Saavik Ford +11

The accretion disks of active galactic nuclei (AGN) are promising locations for the merger of compact objects detected by gravitational wave (GW) observatories. Embedded within a b…

astro-ph.HE2022★ 22 cited

BASS XXXIII: Swift-BAT blazars and their jets through cosmic time

L. Marcotulli, M. Ajello, C. M. Urry +13

We derive the most up-to-date Swift-Burst Alert Telescope (BAT) blazar luminosity function in the 14-195 keV range, making use of a clean sample of 118 blazars detected in the BAT…

astro-ph.HE2022★ 2 cited

X-ray Absorption and Reprocessing in the Lensed Quasar 2MASS J1042+1641

D. J. Walton, M. T. Reynolds, D. Stern +2

We present new broadband X-ray observations of the lensed quasar 2MASS J1042+1641, combining -, and to provide coverage of the X-ray sp…

astro-ph.HE2022★ 6 cited

Breaking the rules at 0.45: the rebel case of RBS 1055

A. Marinucci, G. Vietri, E. Piconcelli +5

We report on a long (250 ks) NuSTAR observation of the bright quasar RBS 1055 performed in March 2021, and archival XMM-Newton pointings (185 ks) taken in July 2014. An optical spe…

astro-ph.HE2022★ 16 cited

Neutrino propagation in the Earth and emerging charged leptons with

Diksha Garg, Sameer Patel, Mary Hall Reno +22

Ultra-high-energy neutrinos serve as messengers of some of the highest energy astrophysical environments. Given that neutrinos are neutral and only interact via weak interactions,…

astro-ph.HE2022★ 23 cited

NuSTAR Observations of Intrinsically X-ray Weak Quasar Candidates: An Obscuration-Only Scenario

Chaojun Wang, B. Luo, W. N. Brandt +6

We utilize recent NuSTAR observations (co-added depth -120 ks) of PG , PG , and PHL 1811 to constrain their hard X-ray ( keV) weakness and…

astro-ph.HE2022★ 7 cited

XMM-Newton and NuSTAR Observations of an Optically Quiescent Quasar

Claire Greenwell, Poshak Gandhi, George Lansbury +3

Optically quiescent quasars (OQQs) represent a recently systematised class of infrared-luminous active galactic nuclei (AGN) which have galaxy-like optical continua. They may repre…

astro-ph.HE2022★ 29 cited

High frequency study of FRB 20180916B using the 100-m Effelsberg radio telescope

S. Bethapudi, L. G. Spitler, R. A. Main +2

FRB 20180916B is a repeating fast radio burst (FRB) with an activity period of 16.33 days. In previous observations ranging from MHz, the activity window was found…

astro-ph.HE2022★ 1 cited

Extreme X-ray Reflection in the Nucleus of the Seyfert Galaxy NGC 5033

S. B. Yun, J. M. Miller, D. Barret +7

NGC 5033 is an intriguing Seyfert galaxy because its sub-classification may change with time, and because optical and sub-mm observations find that the massive black hole does not…

astro-ph.HE2022★ 11 cited

Core-collapse Supernovae in the Dark Energy Survey: Luminosity Functions and Host Galaxy Demographics

M. Grayling, C. P. Gutiérrez, M. Sullivan +73

We present the luminosity functions and host galaxy properties of the Dark Energy Survey (DES) core-collapse supernova (CCSN) sample, consisting of 69 Type II and 50 Type Ibc spect…

astro-ph.HE2022★ 24 cited

Upgraded GMRT survey for pulsars in globular clusters. I: Discovery of a millisecond binary pulsar in NGC 6652

T. Gautam, A. Ridolfi, P. C. C. Freire +6

Globular clusters contain a unique pulsar population, with many exotic systems that can form only in their dense stellar environments. The leap in sensitivity of the upgraded Giant…

astro-ph.HE2022★ 59 cited

The Tidal Disruption Event AT2021ehb: Evidence of Relativistic Disk Reflection, and Rapid Evolution of the Disk-Corona System

Yuhan Yao, Wenbin Lu, Muryel Guolo +29

We present X-ray, UV, optical, and radio observations of the nearby ( Mpc) tidal disruption event (TDE) AT2021ehb/ZTF21aanxhjv during its first 430 days of evolution. AT…

astro-ph.HE2022★ 24 cited

A 62-minute orbital period black widow binary in a wide hierarchical triple

Kevin B. Burdge, Thomas R. Marsh, Jim Fuller +30

Over a dozen millisecond pulsars are ablating low-mass companions in close binary systems. In the original "black widow", the 8-hour orbital period eclipsing pulsar PSR J1959+2048…

astro-ph.HE2022★ 25 cited

NuSTAR Observations of AGN with Low Observed X-ray to [OIII] Luminosity Ratios: Heavily Obscured AGN or Turned-Off AGN?

M. Lynne Saade, Murray Brightman, Daniel Stern +2

Type 2 active galactic nuclei (AGN) show signatures of accretion onto a supermassive black hole through strong, high-ionization, narrow emission lines extended on scales of 100s to…

astro-ph.HE2022★ 47 cited

Discovering gravitationally lensed gravitational waves: predicted rates, candidate selection, and localization with the Vera Rubin Observatory

Graham P. Smith, Andrew Robertson, Guillaume Mahler +7

Secure confirmation that a gravitational wave (GW) has been gravitationally lensed would bring together these two pillars of General Relativity for the first time. This breakthroug…

astro-ph.HE2022★ 12 cited

An 8.56 keV absorption line in the hyperluminous X-ray source in NGC 4045: ultra-fast outflow or cyclotron line?

Murray Brightman, Peter Kosec, Felix Fürst +5

We report on the discovery of an absorption line at keV detected with a significance of in the NuSTAR and XMM-Newton spectra of a newly discovered…

astro-ph.HE2022★ 15 cited

The Lick Observatory Supernova Search follow-up program: photometry data release of 70 stripped-envelope supernovae

WeiKang Zheng, Benjamin E. Stahl, Thomas de Jaeger +85

We present BVRI and unfiltered Clear light curves of 70 stripped-envelope supernovae (SESNe), observed between 2003 and 2020, from the Lick Observatory Supernova Search (LOSS) foll…

astro-ph.HE2022★ 209 cited

The Final Season Reimagined: 30 Tidal Disruption Events from the ZTF-I Survey

Erica Hammerstein, Sjoert van Velzen, Suvi Gezari +30

Tidal disruption events (TDEs) offer a unique way to study dormant black holes. While the number of observed TDEs has grown thanks to the emergence of wide-field surveys in the pas…

astro-ph.HE2022

BASS XXX: Distribution Functions of DR2 Eddington-ratios, Black Hole Masses, and X-ray Luminosities

Tonima Tasnim Ananna, Anna K. Weigel, Benny Trakhtenbrot +19

We determine the low-redshift X-ray luminosity function (XLF), active black hole mass function (BHMF), and Eddington-ratio distribution function (ERDF) for both unobscured (Type 1)…