Search Results - "Pignata, G"
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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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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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TYPE Iax SUPERNOVAE: A NEW CLASS OF STELLAR EXPLOSION
Published in The Astrophysical journal (10-04-2013)“…We describe observed properties of the Type Iax class of supernovae (SNe Iax), consisting of SNe observationally similar to its prototypical member, SN 2002cx…”
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Astronomy. 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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5
The spectacular evolution of Supernova 1996al over 15 yr: a low-energy explosion of a stripped massive star in a highly structured environment
Published in Monthly notices of the Royal Astronomical Society (01-03-2016)“…Spectrophotometry of SN 1996al carried out throughout 15 yr is presented. The early photometry suggests that SN 1996al is a linear Type II supernova, with an…”
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Investigating the properties of stripped-envelope supernovae; what are the implications for their progenitors?
Published in Monthly notices of the Royal Astronomical Society (2019)“…ABSTRACT We present observations and analysis of 18 stripped-envelope supernovae observed during 2013–2018. This sample consists of five H/He-rich SNe, six…”
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THE HIGH CADENCE TRANSIENT SURVEY (HITS). I. SURVEY DESIGN AND SUPERNOVA SHOCK BREAKOUT CONSTRAINTS
Published in The Astrophysical journal (01-12-2016)“…ABSTRACT We present the first results of the High Cadence Transient Survey (HiTS), a survey for which the objective is to detect and follow-up optical…”
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The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am
Published in The Astrophysical journal (20-01-2018)“…Abstract We present our analysis of the Type II supernova DLT16am (SN 2016ija). The object was discovered during the ongoing (DLT40) one-day cadence supernova…”
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Early observations of the nearby Type Ia supernova SN 2015F
Published in Monthly notices of the Royal Astronomical Society (01-02-2017)“…We present photometry and time series spectroscopy of the nearby Type Ia supernova (SN Ia) SN 2015F over -16 d to +80 d relative to maximum light, obtained as…”
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500 days of SN 2013dy: spectra and photometry from the ultraviolet to the infrared
Published in Monthly notices of the Royal Astronomical Society (01-10-2015)“…SN 2013dy is a Type Ia supernova (SN Ia) for which we have compiled an extraordinary data set spanning from 0.1 to ∼ 500 d after explosion. We present 10…”
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The rise-time of Type II supernovae
Published in Monthly notices of the Royal Astronomical Society (01-08-2015)“…We investigate the early-time light curves of a large sample of 223 Type II supernovae (SNe II) from the Sloan Digital Sky Survey and the Supernova Legacy…”
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THE TYPE IIP SUPERNOVA 2012aw IN M95: HYDRODYNAMICAL MODELING OF THE PHOTOSPHERIC PHASE FROM ACCURATE SPECTROPHOTOMETRIC MONITORING
Published in The Astrophysical journal (01-06-2014)“…We present an extensive optical and near-infrared photometric and spectroscopic campaign of the Type IIP supernova SN 2012aw. The data set densely covers the…”
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13
Learning curve in open inguinal hernia repair: a quality improvement multicentre study about Lichtenstein technique
Published in Hernia : the journal of hernias and abdominal wall surgery (01-06-2020)“…Purpose Inguinal hernia repair is one of the most performed procedure all over the world with more than 20 million procedures performed each year. Due to the…”
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14
INTERACTING SUPERNOVAE AND SUPERNOVA IMPOSTORS: SN 2009ip, IS THIS THE END?
Published in The Astrophysical journal (10-04-2013)“…We report the results of a three-year-long dedicated monitoring campaign of a restless luminous blue variable (LBV) in NGC 7259. The object, named SN 2009ip,…”
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Low-luminosity Type II supernovae – III. SN 2018hwm, a faint event with an unusually long plateau
Published in Monthly notices of the Royal Astronomical Society (01-02-2021)“…ABSTRACT In this work, we present photometric and spectroscopic data of the low-luminosity (LL) Type IIP supernova (SN) 2018hwm. The object shows a faint (Mr =…”
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Comparison of progenitor mass estimates for the Type IIP SN 2012A
Published in Monthly notices of the Royal Astronomical Society (2013)“…We present the one-year long observing campaign of SN 2012A which exploded in the nearby (9.8 Mpc) irregular galaxy NGC 3239. The photometric evolution is that…”
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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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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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SN 2017gmr: An Energetic Type II-P Supernova with Asymmetries
Published in The Astrophysical journal (01-11-2019)“…We present high-cadence UV, optical, and near-infrared data on the luminous Type II-P supernova SN 2017gmr from hours after discovery through the first 180…”
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The Diversity of Type Ia Supernovae: Evidence for Systematics?
Published in The Astrophysical journal (20-04-2005)“…The photometric and spectroscopic properties of 26 well-observed Type Ia Supernovae (SNe Ia) were analyzed with the aim of exploring SN Ia diversity. The…”
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