Global ETD Search
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Showing 1 to 9 of 9 for “"core-collapse supernova"”.
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The core collapse supernova rate in the sdss-ii supernova survey
<p>The Sloan Digital Sky Survey II Supernova Survey (SDSS-II SN), though designed as a type Ia supernova search for cosmology, also discovered a large sample of core collapse supernovae (CCSN). I use the SDSS-II SN data to measure the volumetric CCSN rate in the redshift range (0.03 < z < 0.09), …
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Nuclear and particle interactions to multi-messenger signals: Core-collapse supernovae
… astronomy began when a massive star underwent core collapse in a neighboring dwarf galaxy, whose light and neutrinos reached Earth in 1987. Supernova 1987A was observed optically but was also observed through roughly two dozen neutrinos. Modern instruments have the ability to measure …
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From atoms to astronomy : new approaches in neutrino physics
… Such bursts could indicate detection of a nearby core-collapse supernova explosion. The data were taken from November 1999 to May 2001 when the detector was filled with heavy water (Phase I), as well as data from July 2001 to August 2003 when NaCl was added to the detector (Phase II). The search …
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Core-collapse supernovae in the great survey era
… A main science goal of LSST is to detect Type Ia supernovae, but the survey will also revolutionize our understanding of core-collapse events. LSST will observe ~ 10^5 core-collapse supernovae per year out to z ~ 1 and obtain the cosmic supernova rate by direct counting, in an unbiased way and …
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Detection of core-collapse supernovae through joint analysis of LIGO gravitational wave and KamLAND neutrino data
Introduction: Core collapse supernova are one of the most intriguing astrophysical phenomena. The dying stage of a supergiant star, they occur when the star collapses into a protoneutron star, causing a shock wave and a gamma ray burst. High energy neutrinos are released in this process and offer …
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SNO+ sensitivities to pre-supernova and supernova neutrinos
Core-collapse supernovae (CCSNe) deposit heavy elements into the surrounding interstellar medium, affect the chemical evolution of galaxies, and lead to the formation of exotic bodies such as neutron stars and black holes. Neutrinos are also generated deep in the core of the CCSN over the timescale …
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Isotopic and Elemental Compositions of Stardust and Protosolar Dust Grains in Primitive Meteorites
… large <super>18<super>O excesses and come from core collapse supernovae. The next most abundant fraction of grains comes from high metallicity AGB stars of approximately solar mass. A minor fraction of the grains exhibit large excesses in <super>16<super>O and formed in core collapse supernova …
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A Study of Dynamical and Emission Variabilities in Pulsars
… neutron stars thought to have been formed in the core-collapse supernova of massive stars. Ever since their discovery, pulsars have shown complex behaviors. This is certainly true for their emission mechanism, which is still not fully understood. This is primarily because of the abrupt changes …
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Exploring the nature and origins of low luminosity type IIP supernovae
… thesis I investigate the origins of a subset of core-collapse SNe (CCSNe); type IIP supernovae (SNe). Type II supernovae are the most common type of core collapse supernova (CCSN), and are defined by the presence of H in their envelope. Type IIP SNe are a subgroup that display a distinctive …