924 citations · 17.8k across the 309 of their papers we have counts for
14 papers · 2 filters
GS 2000+25: The Least Luminous Black Hole X-ray Binary
J. Rodriguez, R. Urquhart, R. M. Plotkin +6
Little is known about the properties of the accretion flows and jets of the lowest-luminosity quiescent black holes. We report new, strictly simultaneous radio and X-ray observatio…
A New Likely Redback Millisecond Pulsar Binary with a Massive Neutron Star: 4FGL J2333.1--5527
Samuel J. Swihart, Jay Strader, Ryan Urquhart +7
We present the discovery of a likely new redback millisecond pulsar binary associated with the \emph{Fermi} -ray source 4FGL J2333.1--5527. Using optical photometric and spectro…
Slow Decline and Rise of the Broad [OIII] Emission Line in Globular Cluster Black Hole Candidate RZ2109
Kristen C. Dage, Stephen E. Zepf, Arash Bahramian +6
RZ2109 is the first of several extragalactic globular clusters shown to host an ultraluminous X-ray source. RZ2109 is particularly notable because optical spectroscopy shows it has…
The Optical Afterglow of GW170817: An Off-axis Structured Jet and Deep Constraints on a Globular Cluster Origin
Wen-fai Fong, P. K. Blanchard, K. D. Alexander +25
We present a revised and complete optical afterglow light curve of the binary neutron star merger GW170817, enabled by deep Hubble Space Telescope (HST) F606W observations at $\app…
Searches After Gravitational-waves Using ARizona Observatories (SAGUARO): System Overview and First Results from Advanced LIGO/Virgo's Third Observing Run
M. J. Lundquist, K. Paterson, W. Fong +53
We present Searches After Gravitational-waves Using ARizona Observatories (SAGUARO), a comprehensive effort dedicated to the discovery and characterization of optical counterparts…
Supersoft X-ray emission from a white dwarf binary not powered by nuclear fusion
Thomas J. Maccarone, Thomas J. Nelson, Peter J. Brown +17
Supersoft X-ray sources are stellar objects which emit X-rays with temperatures of about 1 million Kelvin and luminosities well in excess of what can be produced by stellar coronae…
SN 2017gmr: An energetic Type II-P supernova with asymmetries
Jennifer E. Andrews, D. J. Sand, S. Valenti +77
We present high-cadence ultraviolet (UV), optical, and near-infrared (NIR) data on the luminous Type II-P supernova SN 2017gmr from hours after discovery through the first 180 days…
The Most Rapidly Declining Type I Supernova 2019bkc/ATLAS19dqr
Ping Chen, Subo Dong, M. D. Stritzinger +21
We report observations of the hydrogen-deficient supernova (SN) 2019bkc/ATLAS19dqr. With B- and r-band decline between peak and 10 days post peak of Delta m_10(B)=5.24+/-0.07 mag a…
Astro2020 Science White Paper: Populations of Black Holes in Binaries
Thomas J. Maccarone, Laura Chomiuk, James Miller-Jones +9
Black holes in binary star systems are vital for understanding the process of pr oducing gravitational wave sources, understanding how supernovae work, and for p roviding fossil ev…
Discovery and Early Evolution of ASASSN-19bt, the First TDE Detected by TESS
Thomas W. -S. Holoien, Patrick J. Vallely, Katie Auchettl +22
We present the discovery and early evolution of ASASSN-19bt, a tidal disruption event (TDE) discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN) at a distance of $d\…
Flaring, Dust Formation, And Shocks In The Very Slow Nova ASASSN-17pf (LMCN 2017-11a)
E. Aydi, L. Chomiuk, J. Strader +25
We present a detailed study of the 2017 eruption of the classical nova ASASSN-17pf (LMCN 2017-11a), which is located in the Large Magellanic Cloud, including data from AAVSO, ASAS-…
PSR J1306--40: An X-ray Luminous Redback with an Evolved Companion
Samuel J. Swihart, Jay Strader, Laura Chomiuk +1
PSR J1306--40 is a millisecond pulsar binary with a non-degenerate companion in an unusually long 1.097 day orbit. We present new optical photometry and spectroscopy of this…
Radio Pulsar Populations
D. R. Lorimer, N. Pol, K. Rajwade +9
Our understanding of the neutron star population is informed to a great degree by large-scale surveys that have been carried out by radio facilities during the past fifty years. We…
Optical spectroscopy and demographics of redback millisecond pulsar binaries
Jay Strader, Samuel J. Swihart, Laura Chomiuk +12
We present the first optical spectroscopy of five confirmed (or strong candidate) redback millisecond pulsar binaries, obtaining complete radial velocity curves for each companion…