Search Results - "Parrent, J"
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RELATIVISTIC SUPERNOVAE HAVE SHORTER-LIVED CENTRAL ENGINES OR MORE EXTENDED PROGENITORS: THE CASE OF SN 2012ap
Published in The Astrophysical journal (20-12-2014)“…Deep, late-time X-ray observations of the relativistic, engine-driven, type Ic SN 2012ap allow us to probe the nearby environment of the explosion and reveal…”
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Ejection of the Massive Hydrogen-rich Envelope Timed with the Collapse of the Stripped SN 2014C
Published in The Astrophysical journal (01-02-2017)“…We present multi-wavelength observations of SN 2014C during the first 500 days. These observations represent the first solid detection of a young extragalactic…”
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NO X-RAYS FROM THE VERY NEARBY TYPE Ia SN 2014J: CONSTRAINTS ON ITS ENVIRONMENT
Published in The Astrophysical journal (20-07-2014)“…Deep X-ray observations of the post-explosion environment around the very nearby Type Ia SN 2014J (d sub(L) = 3.5 Mpc) reveal no X-ray emission down to a…”
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Progressive redshifts in the late-time spectra of Type Ia supernovae
Published in Monthly notices of the Royal Astronomical Society (11-10-2016)“…We examine the evolution of late-time, optical nebular features of Type Ia supernovae (SNe Ia) using a sample consisting of 160 spectra of 27 normal SNe Ia…”
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Nebular-phase spectra of nearby Type Ia Supernovae
Published in Monthly notices of the Royal Astronomical Society (01-12-2017)“…Abstract We present late-time spectra of eight Type Ia supernovae (SNe Ia) obtained at >200 d after peak brightness using the Gemini South and Keck telescopes…”
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CLUES TO THE NATURE OF SN 2009ip FROM PHOTOMETRIC AND SPECTROSCOPIC EVOLUTION TO LATE TIMES
Published in The Astrophysical journal (01-06-2014)“…We present time series photometric and spectroscopic data for the transient SN 2009ip from the start of its outburst in 2012 September until 2013 November…”
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A review of type Ia supernova spectra
Published in Astrophysics and space science (01-05-2014)“…SN 2011fe was the nearest and best-observed type Ia supernova in a generation, and brought previous incomplete datasets into sharp contrast with the detailed…”
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Two New Calcium-rich Gap Transients in Group and Cluster Environments
Published in The Astrophysical journal (10-02-2017)“…We present the Palomar Transient Factory discoveries and the photometric and spectroscopic observations of PTF11kmb and PTF12bho. We show that both transients…”
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LINE IDENTIFICATIONS OF TYPE I SUPERNOVAE: ON THE DETECTION OF Si II FOR THESE HYDROGEN-POOR EVENTS
Published in The Astrophysical journal (20-03-2016)“…ABSTRACT Here we revisit line identifications of type I supernovae (SNe I) and highlight trace amounts of unburned hydrogen as an important free parameter for…”
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The Luminous and Carbon-rich Supernova 2006gz: A Double Degenerate Merger?
Published in The Astrophysical journal (01-11-2007)“…Spectra and light curves of SN 2006gz show the strongest signature of unburned carbon and one of the slowest fading light curves ever seen in a Type Ia event […”
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THE DOUBLE-PEAKED SN 2013ge: A TYPE Ib/c SN WITH AN ASYMMETRIC MASS EJECTION OR AN EXTENDED PROGENITOR ENVELOPE
Published in The Astrophysical journal (10-04-2016)“…ABSTRACT We present extensive multiwavelength (radio to X-ray) observations of the Type Ib/c supernova (SN Ib/c) SN 2013ge from −13 to +457 days relative to…”
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THE BROAD-LINED Type Ic SN 2012ap AND THE NATURE OF RELATIVISTIC SUPERNOVAE LACKING A GAMMA-RAY BURST DETECTION
Published in The Astrophysical journal (20-01-2015)“…We present ultraviolet, optical, and near-infrared observations of SN 2012ap, a broad-lined Type Ic supernova in the galaxy NGC1729 that produced a…”
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Jets in Hydrogen-poor Superluminous Supernovae: Constraints from a Comprehensive Analysis of Radio Observations
Published in The Astrophysical journal (20-03-2018)“…The energy source powering the extreme optical luminosity of hydrogen-stripped superluminous supernovae (SLSNe-I) is not known, but recent studies have…”
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DUST IN THE WIND: THE ROLE OF RECENT MASS LOSS IN LONG GAMMA-RAY BURSTS
Published in The Astrophysical journal (01-06-2015)“…ABSTRACT We study the late-time ( days) X-ray afterglows of nearby ( ) long gamma-ray bursts (GRBs) with Swift and identify a population of explosions with…”
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Ultraviolet diversity of Type Ia Supernovae
Published in Monthly notices of the Royal Astronomical Society (11-09-2016)“…Ultraviolet (UV) observations of Type Ia supernovae (SNe Ia) probe the outermost layers of the explosion, and UV spectra of SNe Ia are expected to be extremely…”
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PTF 11kx: A Type Ia Supernova with a Symbiotic Nova Progenitor
Published in Science (American Association for the Advancement of Science) (24-08-2012)“…There is a consensus that type Ia supernovae (SNe Ia) arise from the thermonuclear explosion of white dwarf stars that accrete matter from a binary companion…”
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THE FAST AND FURIOUS DECAY OF THE PECULIAR TYPE Ic SUPERNOVA 2005ek
Published in The Astrophysical journal (01-09-2013)“…We present extensive multi-wavelength observations of the extremely rapidly declining Type Ic supernova (SN Ic), SN 2005ek. Reaching a peak magnitude of M…”
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TYPE IIb SUPERNOVA 2013df ENTERING INTO AN INTERACTION PHASE: A LINK BETWEEN THE PROGENITOR AND THE MASS LOSS
Published in The Astrophysical journal (01-07-2015)“…We report the late-time evolution of Type IIb supernova (SN IIb) 2013df. SN 2013df showed a dramatic change in its spectral features at ~ 1 yr after the…”
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Comparative analysis of SN 2012dn optical spectra: days −14 to +114
Published in Monthly notices of the Royal Astronomical Society (21-04-2016)“…SN 2012dn is a super-Chandrasekhar mass candidate in a purportedly normal spiral (SAcd) galaxy, and poses a challenge for theories of type Ia supernova…”
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Massive stars exploding in a He-rich circumstellar medium – V. Observations of the slow-evolving SN Ibn OGLE-2012-SN-006
Published in Monthly notices of the Royal Astronomical Society (11-05-2015)“…We present optical observations of the peculiar Type Ibn supernova (SN Ibn) OGLE-2012-SN-006, discovered and monitored by the Optical Gravitational Lensing…”
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