Search Results - "Bradley Cenko, S"
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Optimizing the Resolution of Hydrodynamic Simulations for MCRaT Radiative Transfer Calculations
Published in The Astrophysical journal (01-09-2023)“…Despite their discovery about half a century ago, the Gamma-ray burst (GRB) prompt emission mechanism is still not well understood. Theoretical modeling of the…”
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2
ZTF Early Observations of Type Ia Supernovae. I. Properties of the 2018 Sample
Published in The Astrophysical journal (01-12-2019)“…Early-time observations of Type Ia supernovae (SNe Ia) are essential to constrain the properties of their progenitors. In this paper, we present high-quality…”
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3
AT2018cow: A Luminous Millimeter Transient
Published in The Astrophysical journal (20-01-2019)“…We present detailed submillimeter- through centimeter-wave observations of the extraordinary extragalactic transient AT2018cow. The apparent…”
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4
The Final Season Reimagined: 30 Tidal Disruption Events from the ZTF-I Survey
Published in The Astrophysical journal (01-01-2023)“…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…”
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SWIFT J2058.4+0516: DISCOVERY OF A POSSIBLE SECOND RELATIVISTIC TIDAL DISRUPTION FLARE?
Published in The Astrophysical journal (01-07-2012)“…We report the discovery by the Swift hard X-ray monitor of the transient source Swift J2058.4+0516 (Sw J2058+05). Our multi-wavelength follow-up campaign…”
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Seventeen Tidal Disruption Events from the First Half of ZTF Survey Observations: Entering a New Era of Population Studies
Published in The Astrophysical journal (01-02-2021)“…While tidal disruption events (TDEs) have long been heralded as laboratories for the study of quiescent black holes, the small number of known TDEs and…”
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The Fast, Luminous Ultraviolet Transient AT2018cow: Extreme Supernova, or Disruption of a Star by an Intermediate-Mass Black Hole?
Published in Monthly notices of the Royal Astronomical Society (22-12-2018)“…Wide-field optical surveys have begun to uncover large samples of fast (trise <~ 5 d), luminous (Mpeak < −18), blue transients. While commonly attributed to…”
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Instrumental Tip-of-the-iceberg Effects on the Prompt Emission of Swift/BAT Gamma-ray Bursts
Published in The Astrophysical journal (01-03-2022)“…The observed durations of prompt gamma-ray emission from gamma-ray bursts (GRBs) are often used to infer the progenitors and energetics of the sources…”
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Gamma-Ray Urgent Archiver for Novel Opportunities (GUANO): Swift/BAT Event Data Dumps on Demand to Enable Sensitive Subthreshold GRB Searches
Published in The Astrophysical journal (01-09-2020)“…We introduce a new capability of the Neil Gehrels Swift Observatory to provide event-level data from the Burst Alert Telescope (BAT) on demand in response to…”
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A Large Fraction of Hydrogen-rich Supernova Progenitors Experience Elevated Mass Loss Shortly Prior to Explosion
Published in The Astrophysical journal (01-05-2021)“…Spectroscopic detection of narrow emission lines traces the presence of circumstellar mass distributions around massive stars exploding as core-collapse…”
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A Possible Relativistic Jetted Outburst from a Massive Black Hole Fed by a Tidally Disrupted Star
Published in Science (American Association for the Advancement of Science) (08-07-2011)“…Gas accretion onto some massive black holes (MBHs) at the centers of galaxies actively powers luminous emission, but most MBHs are considered dormant…”
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A Systematic Analysis of the X-Ray Emission in Optically Selected Tidal Disruption Events: Observational Evidence for the Unification of the Optically and X-Ray-selected Populations
Published in The Astrophysical journal (01-05-2024)“…We present a systematic analysis of the X-ray emission of a sample of 17 optically selected, X-ray-detected tidal disruption events (TDEs) discovered between…”
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13
A Search for High-energy Counterparts to Fast Radio Bursts
Published in The Astrophysical journal (01-07-2019)“…We report on a search for high-energy counterparts to fast radio bursts (FRBs) with the Fermi Gamma-ray Burst Monitor, Fermi Large Area Telescope, and the Neil…”
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14
The First Systematic Study of Type Ibc Supernova Multi-band Light Curves
Published in The Astrophysical journal (10-11-2011)“…We present detailed optical photometry for 25 Type Ibc supernovae (SNe Ibc) within d 150 Mpc obtained with the robotic Palomar 60 inch telescope in 2004-2007…”
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UNCOVERING THE PUTATIVE B-STAR BINARY COMPANION OF THE SN 1993J PROGENITOR
Published in The Astrophysical journal (20-07-2014)“…The Type IIb supernova (SN) 1993J is one of only a few stripped-envelope SNe with a progenitor star identified in pre-explosion images. SN IIb models typically…”
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Swift Spectra of AT2018cow: A White Dwarf Tidal Disruption Event?
Published in Monthly notices of the Royal Astronomical Society (01-08-2019)“…The bright transient AT2018cow has been unlike any other known type of transient. Its high brightness, rapid rise and decay, and initially nearly featureless…”
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The unprecedented 2012 outburst of SN 2009ip: a luminous blue variable star becomes a true supernova
Published in Monthly notices of the Royal Astronomical Society (11-04-2013)“…Some reports of supernova (SN) discoveries turn out not to be true core-collapse explosions. One such case was SN 2009ip, which was recognized to be the…”
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Flows of X-ray gas reveal the disruption of a star by a massive black hole
Published in Nature (London) (22-10-2015)“…High-resolution X-ray spectra reveal highly ionized X-ray gas flows in a nearby tidal disruption event, ASASSN-14li, near to the black hole of the galaxy PGC…”
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Spectra of Hydrogen-poor Superluminous Supernovae from the Palomar Transient Factory
Published in The Astrophysical journal (01-03-2018)“…Most Type I superluminous supernovae (SLSNe-I) reported to date have been identified by their high peak luminosities and spectra lacking obvious signs of…”
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The First Tidal Disruption Flare in ZTF: From Photometric Selection to Multi-wavelength Characterization
Published in The Astrophysical journal (20-02-2019)“…We present Zwicky Transient Facility (ZTF) observations of the tidal disruption flare AT2018zr/PS18kh reported by Holoien et al. and detected during ZTF…”
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