Search Results - "Piro, A L"
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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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Time-dependent models of accretion discs formed from compact object mergers
Published in Monthly notices of the Royal Astronomical Society (21-10-2008)“…We present time-dependent models of the remnant accretion discs created during compact object mergers, focusing on the energy available from accretion at late…”
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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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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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Neutron-rich freeze-out in viscously spreading accretion discs formed from compact object mergers
Published in Monthly notices of the Royal Astronomical Society (11-06-2009)“…Accretion discs with masses ∼10−3–0.1 M⊙ are believed to form during the merger of a neutron star (NS) with another NS and the merger of a NS with a black hole…”
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The rising light curves of Type Ia supernovae
Published in Monthly notices of the Royal Astronomical Society (01-02-2015)“…We present an analysis of the early, rising light curves of 18 Type Ia supernovae (SNe Ia) discovered by the Palomar Transient Factory and the La Silla-QUEST…”
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The tidal disruption event AT2017eqx: spectroscopic evolution from hydrogen rich to poor suggests an atmosphere and outflow
Published in Monthly notices of the Royal Astronomical Society (11-09-2019)“…ABSTRACT We present and analyse a new tidal disruption event (TDE), AT2017eqx at redshift z = 0.1089, discovered by Pan-STARRS and ATLAS. The position of 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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A faint type of supernova from a white dwarf with a helium-rich companion
Published in Nature (London) (20-05-2010)“…Supernovae are thought to arise from two different physical processes. The cores of massive, short-lived stars undergo gravitational core collapse and…”
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Carnegie Supernova Project-II: Near-infrared Spectroscopy of Stripped-envelope Core-collapse Supernovae
Published in The Astrophysical journal (01-02-2022)“…Abstract We present 75 near-infrared (NIR; 0.8−2.5 μ m) spectra of 34 stripped-envelope core-collapse supernovae (SESNe) obtained by the Carnegie Supernova…”
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Nickel–rich outflows from accretion discs formed by the accretion–induced collapse of white dwarfs
Published in Monthly notices of the Royal Astronomical Society (01-07-2009)“…A white dwarf (WD) approaching the Chandrasekhar mass may in several circumstances undergo accretion–induced collapse (AIC) to a neutron star (NS) before a…”
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The Type II-P Supernova 2019mhm and Constraints on its Progenitor System
Published in The Astrophysical journal (01-06-2023)“…Abstract We present pre- and postexplosion observations of the Type II-P supernova (SN II-P) 2019mhm located in NGC 6753. Based on optical spectroscopy and…”
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THE YOUNG AND BRIGHT TYPE IA SUPERNOVA ASASSN-14lp: DISCOVERY, EARLY-TIME OBSERVATIONS, FIRST-LIGHT TIME, DISTANCE TO NGC 4666, AND PROGENITOR CONSTRAINTS
Published in The Astrophysical journal (01-08-2016)“…ABSTRACT On 2014 December 9.61, the All-sky Automated Survey for SuperNovae (ASAS-SN or "Assassin") discovered ASASSN-14lp just ∼2 days after first light using…”
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Carnegie Supernova Project-II: Near-infrared Spectroscopic Diversity of Type II Supernovae
Published in The Astrophysical journal (10-12-2019)“…We present 81 near-infrared (NIR) spectra of 30 Type II supernovae (SNe II) from the Carnegie Supernova Project-II (CSP-II), the largest such data set…”
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Near-infrared and Optical Nebular-phase Spectra of Type Ia Supernovae SN 2013aa and SN 2017cbv in NGC 5643
Published in The Astrophysical journal (01-03-2023)“…Abstract We present multiwavelength time-series spectroscopy of SN 2013aa and SN 2017cbv, two Type Ia supernovae (SNe Ia) on the outskirts of the same host…”
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A Physical Basis for the H-band Blue-edge Velocity and Light-curve Shape Correlation in Context of Type Ia Supernova Explosion Physics
Published in The Astrophysical journal (20-06-2019)“…Our recent work demonstrates a correlation between the high-velocity blue edge, vedge, of the iron-peak Fe/Co/Ni H-band emission feature and the optical…”
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GRB 080503: Implications of a Naked Short Gamma-Ray Burst Dominated by Extended Emission
Published in The Astrophysical journal (10-05-2009)“…We report on observations of GRB 080503, a short gamma-ray burst (GRB) with very bright extended emission (about 30 times the gamma-ray fluence of the initial…”
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The diversity of Type II supernova versus the similarity in their progenitors
Published in Monthly notices of the Royal Astronomical Society (11-07-2016)“…High-quality collections of Type II supernova (SN) light curves are scarce because they evolve for hundreds of days, making follow-up observations time…”
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Electromagnetic evidence that SSS17a is the result of a binary neutron star merger
Published in Science (American Association for the Advancement of Science) (22-12-2017)“…Eleven hours after the detection of gravitational wave source GW170817 by the Laser Interferometer Gravitational-Wave Observatory and Virgo Interferometers, an…”
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A hot and fast ultra-stripped supernova that likely formed a compact neutron star binary
Published in Science (American Association for the Advancement of Science) (12-10-2018)“…Compact neutron star binary systems are produced from binary massive stars through stellar evolution involving up to two supernova explosions. The final stages…”
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