Search Results - "Shappee, B. J."
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Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source
Published in Science (American Association for the Advancement of Science) (22-12-2017)“…On 17 August 2017, the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo interferometer detected gravitational waves (GWs) emanating…”
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The HST Nondetection of SN Ia 2011fe 11.5 yr after Explosion Further Restricts Single-degenerate Progenitor Systems
Published in The Astrophysical journal (01-02-2024)“…Abstract We present deep Hubble Space Telescope imaging of the nearby Type Ia supernova (SN Ia) 2011fe obtained 11.5 yr after explosion. No emission is…”
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3
Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis
Published in Science (American Association for the Advancement of Science) (22-12-2017)“…On 17 August 2017, gravitational waves (GWs) were detected from a binary neutron star merger, GW170817, along with a coincident short gamma-ray burst, GRB…”
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Whimper of a Bang: Documenting the Final Days of the Nearby Type Ia Supernova 2011fe
Published in The Astrophysical journal (20-05-2017)“…Using the Hubble Space Telescope (HST) and the Large Binocular Telescope, we followed the evolution of the Type Ia supernova (SN Ia) 2011fe for an…”
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Early spectra of the gravitational wave source GW170817: Evolution of a neutron star merger
Published in Science (American Association for the Advancement of Science) (22-12-2017)“…On 17 August 2017, Swope Supernova Survey 2017a (SSS17a) was discovered as the optical counterpart of the binary neutron star gravitational wave event…”
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Strong Evidence against a Non-degenerate Companion in SN 2012cg
Published in The Astrophysical journal (01-03-2018)“…Even though SN 2012cg is one of the best-studied Type Ia supernovae to date, the nature of its progenitor system has been debated in numerous studies…”
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Six months of multiwavelength follow-up of the tidal disruption candidate ASASSN-14li and implied TDE rates from ASAS-SN
Published in Monthly notices of the Royal Astronomical Society (21-01-2016)“…We present ground-based and Swift photometric and spectroscopic observations of the candidate tidal disruption event (TDE) ASASSN-14li, found at the centre of…”
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Discovery and follow-up of ASASSN-19dj: an X-ray and UV luminous TDE in an extreme post-starburst galaxy
Published in Monthly notices of the Royal Astronomical Society (01-01-2021)“…ABSTRACT We present observations of ASASSN-19dj, a nearby tidal disruption event (TDE) discovered in the post-starburst galaxy KUG 0810+227 by the All-Sky…”
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ASASSN-18tb: a most unusual Type Ia supernova observed by TESS and SALT
Published in Monthly notices of the Royal Astronomical Society (01-08-2019)“…ABSTRACT We present photometric and spectroscopic observations of the unusual Type Ia supernova ASASSN-18tb, including a series of Southern African Large…”
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High tide: a systematic search for ellipsoidal variables in ASAS-SN
Published in Monthly notices of the Royal Astronomical Society (01-10-2021)“…ABSTRACT The majority of non-merging stellar mass black holes are discovered by observing high energy emission from accretion processes. Here, we pursue the…”
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Early Spectral Evolution of Classical Novae: Consistent Evidence for Multiple Distinct Outflows
Published in The Astrophysical journal (01-12-2020)“…The physical mechanism driving mass ejection during a nova eruption is still poorly understood. Possibilities include ejection in a single ballistic event, a…”
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First Resolution of Microlensed Images
Published in The Astrophysical journal (20-01-2019)“…Abstract We employ Very Large Telescope Interferometer GRAVITY to resolve, for the first time, the two images generated by a gravitational microlens. The…”
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From out of the Blue: Swift Links 2002es-like, 2003fg-like, and Early Time Bump Type Ia Supernovae
Published in The Astrophysical journal (01-05-2024)“…Abstract We collect a sample of 42 Type Ia supernovae (SNe Ia) with Swift UV photometry and well-measured early time light-curve rises and find that…”
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SN 2012fr: Ultraviolet, Optical, and Near-infrared Light Curves of a Type Ia Supernova Observed within a Day of Explosion
Published in The Astrophysical journal (20-05-2018)“…Abstract We present detailed ultraviolet, optical, and near-infrared light curves of the Type Ia supernova (SN) 2012fr, which exploded in the Fornax cluster…”
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THE AFTERGLOW AND EARLY-TYPE HOST GALAXY OF THE SHORT GRB 150101B AT z = 0.1343
Published in The Astrophysical journal (20-12-2016)“…ABSTRACT We present the discovery of the X-ray and optical afterglows of the short-duration GRB 150101B, pinpointing the event to an early-type host galaxy at…”
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Carnegie Supernova Project: The First Homogeneous Sample of Super-Chandrasekhar-mass/2003fg-like Type Ia Supernovae
Published in The Astrophysical journal (01-12-2021)“…Abstract We present a multiwavelength photometric and spectroscopic analysis of 13 super-Chandrasekhar-mass/2003fg-like Type Ia supernovae (SNe Ia). Nine of…”
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ASASSN-15lh: A highly super-luminous supernova
Published in Science (American Association for the Advancement of Science) (15-01-2016)“…We report the discovery of ASASSN-15lh (SN 2015L), which we interpret as the most luminous supernova yet found. At redshift z = 0.2326, ASASSN-15lh reached an…”
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The relative specific Type Ia supernovae rate from three years of ASAS-SN
Published in Monthly notices of the Royal Astronomical Society (11-04-2019)“…ABSTRACT We analyse the 476 SN Ia host galaxies from the All-Sky Automated Survey for Supernova (ASAS-SN) Bright Supernova Catalogues to determine the observed…”
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Carnegie Supernova Project II: The Slowest Rising Type Ia Supernova LSQ14fmg and Clues to the Origin of Super-Chandrasekhar/03fg-like Events
Published in The Astrophysical journal (01-09-2020)“…Abstract The Type Ia supernova (SN Ia) LSQ14fmg exhibits exaggerated properties that may help to reveal the origin of the “super-Chandrasekhar” (or 03fg-like)…”
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Cool, Luminous, and Highly Variable Stars in the Magellanic Clouds from ASAS-SN: Implications for Thorne–Żytkow Objects and Super-asymptotic Giant Branch Stars
Published in The Astrophysical journal (01-10-2020)“…Abstract Stars with unusual properties can provide a wealth of information about rare stages of stellar evolution and exotic physics. However, determining the…”
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