OGLE-2013-SN-079: A LONELY SUPERNOVA CONSISTENT WITH A HELIUM SHELL DETONATION
نویسندگان
چکیده
منابع مشابه
A NEW ESTIMATION OF MASS ACCUMULATION EFFICIENCY IN HELIUM SHELL FLASHES TOWARD TYPE Ia SUPERNOVA EXPLOSIONS
We have calculated the mass accumulation efficiency during helium shell flashes to examine whether or not a carbon-oxygen white dwarf (C+O WD) grows up to the Chandrasekhar mass limit to ignite a Type Ia supernova (SN Ia) explosion. It has been frequently argued that luminous super-soft X-ray sources (SSSs) and symbiotic stars are progenitors of SNe Ia. In such systems, a C+O WD accretes hydrog...
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Dust emission from the Type II supernova SN 2002hh in NGC 6946 has been detected at mid-infrared wavelengths by the Spitzer Space Telescope from 590 to 758 days after outburst and confirmed by higher angular resolution Gemini-N mid-IR observations. The day-600 5.8 − 24-μm emission can be fit by a 290-K blackbody having a luminosity of 1.6×10 L⊙. The minimum emitting radius of 1.1×10 cm is too l...
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Aims. Long-duration gamma-ray bursts (GRBs) have been found to be associated with broad-lined type-Ic supernovae (SNe), but only a handful of cases have been studied in detail. Prompted by the discovery of the exceptionally bright, nearby GRB 130427A (redshift z = 0.3399), we aim at characterising the properties of its associated SN 2013cq. This is the first opportunity to test directly the pro...
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We explore the evolution of thermonuclear supernova explosions when the progenitor white dwarf star ignites asymmetrically off-center. Several numerical simulations are carried out in two and three dimensions to test the consequences of different initial flame configurations such as spherical bubbles displaced from the center, more complex deformed configurations, and teardrop-shaped ignitions....
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2015
ISSN: 2041-8213
DOI: 10.1088/2041-8205/799/1/l2