Search Results - "MARION, G. H"
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SN 2012cg: EVIDENCE FOR INTERACTION BETWEEN A NORMAL SN Ia AND A NON-DEGENERATE BINARY COMPANION
Published in The Astrophysical journal (01-04-2016)“…ABSTRACT We report evidence for excess blue light from the Type Ia supernova (Sn Ia) SN 2012cg at 15 and 16 days before maximum B-band brightness. The emission…”
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High-velocity features of calcium and silicon in the spectra of Type Ia supernovae
Published in Monthly notices of the Royal Astronomical Society (01-08-2015)“…‘High-velocity features’ (HVFs) are spectral features in Type Ia supernovae (SNe Ia) that have minima indicating significantly higher (by greater than about…”
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An ultraviolet–optical flare from the tidal disruption of a helium-rich stellar core
Published in Nature (London) (10-05-2012)“…The observation of a flare of radiation from the centre of an inactive galaxy fits a model of the tidal disruption of a helium-rich stellar core and its…”
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Nebular Spectroscopy of the "Blue Bump" Type Ia Supernova 2017cbv
Published in The Astrophysical journal (10-08-2018)“…We present nebular phase optical and near-infrared spectroscopy of the Type Ia supernova (SN) 2017cbv. The early light curves of SN 2017cbv showed a prominent…”
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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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Near-infrared Spectral Evolution of the Type Ia Supernova 2014J in the Nebular Phase: Implications for the Progenitor System
Published in The Astrophysical journal (10-07-2018)“…As the closest Type Ia supernova in decades, SN 2014J provides a unique opportunity for detailed investigation into observational signatures of the progenitor…”
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Extensive HST ultraviolet spectra and multiwavelength observations of SN 2014J in M82 indicate reddening and circumstellar scattering by typical dust
Published in Monthly notices of the Royal Astronomical Society (01-10-2014)“…SN 2014J in M82 is the closest detected Type Ia supernova (SN Ia) in at least 28 yr and perhaps in 410 yr. Despite its small distance of 3.3 Mpc, SN 2014J is…”
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Red and Reddened: Ultraviolet through Near-infrared Observations of Type Ia Supernova 2017erp
Published in The Astrophysical journal (01-06-2019)“…Abstract We present space-based ultraviolet/optical photometry and spectroscopy with the Swift Ultra-Violet/Optical Telescope and Hubble Space Telescope ( HST…”
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EXTENSIVE SPECTROSCOPY AND PHOTOMETRY OF THE TYPE IIP SUPERNOVA 2013ej
Published in The Astrophysical journal (01-05-2016)“…ABSTRACT We present extensive optical (UBV RI, , and open CCD) and near-infrared (ZY JH) photometry for the very nearby Type IIP SN 2013ej extending from +1 to…”
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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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Cosmological Distance Measurement of Twelve Nearby Supernovae IIP with ROTSE-IIIb
Published in The Astrophysical journal (01-02-2024)“…Abstract We present cosmological analysis of 12 nearby ( z < 0.06) Type IIP supernovae (SNe IIP) observed with the ROTSE-IIIb telescope. To achieve precise…”
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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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From Shock Breakout to Peak and Beyond: Extensive Panchromatic Observations of the Type Ib Supernova 2008D Associated with Swift X-ray Transient 080109
Published in The Astrophysical journal (01-09-2009)“…We present extensive early photometric (ultraviolet through near-infrared) and spectroscopic (optical and near-infrared) data on supernova (SN) 2008D as well…”
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On the nature of Type IIn/Ia–CSM supernovae: optical and near-infrared spectra of SN 2012ca and SN 2013dn
Published in Monthly notices of the Royal Astronomical Society (11-02-2015)“…A growing subset of Type Ia supernovae (SNe Ia) shows evidence via narrow emission lines for unexpected interaction with a dense circumstellar medium…”
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1991T-like Supernovae
Published in The Astrophysical journal. Supplement series (01-07-2024)“…Abstract Understanding the nature of the luminous 1991T-like supernovae (SNe) is of great importance to SN cosmology as they are likely to have been more…”
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Snowflakes in a Furnace: Formation of CO and Dust in a Recurrent Nova Eruption
Published in Astrophysical journal. Letters (01-09-2023)“…Abstract We report the detection of carbon monoxide (CO) and dust, formed under hostile conditions, in recurrent nova V745 Sco about 8.7 days after its 2014…”
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THE EARLIEST NEAR-INFRARED TIME-SERIES SPECTROSCOPY OF A TYPE Ia SUPERNOVA
Published in The Astrophysical journal (01-04-2013)“…We present ten medium-resolution, high signal-to-noise ratio near-infrared (NIR) spectra of SN 2011fe from SpeX on the NASA Infrared Telescope Facility (IRTF)…”
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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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SN 2003du: Signatures of the Circumstellar Environment in a Normal Type Ia Supernova?
Published in The Astrophysical journal (20-05-2004)“…We present observations of the Type Ia supernova 2003du obtained with the Hobby-Eberly Telescope and report the detection of a high-velocity component in the…”
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