Details

Autor(en) / Beteiligte

• Silverman, Jeffrey M
• Nugent, Peter E
• Gal-Yam, Avishay
• Sullivan, Mark
• Howell, D Andrew
• Filippenko, Alexei V
• ARCAVI, IAIR
• Ben-Ami, Sagi
• Bloom, Joshua S
• Cenko, S Bradley

Titel

TYPE Ia SUPERNOVAE STRONGLY INTERACTING WITH THEIR CIRCUMSTELLAR MEDIUM

Ist Teil von

• The Astrophysical journal. Supplement series, 2013-07, Vol.207 (1), p.1-15

Ort / Verlag

United States

Erscheinungsjahr

2013

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Owing to their utility for measurements of cosmic acceleration, Type Ia supernovae (SNe Ia) are perhaps the best studied class of SNe, yet the progenitor systems of these explosions largely remain a mystery. In the first systematic search for such systems, we have identified 16 SNe Ia-CSM, and here we present new spectra of 13 of them. Six SNe Ia-CSM have been well studied previously, three were previously known but are analyzed in depth for the first time here, and seven are new discoveries from the Palomar Transient Factory. Finally, the host galaxies of SNe Ia-CSM are all late-type spirals similar to the Milky Way, or dwarf irregulars like the Large Magellanic Cloud, which implies that these objects come from a relatively young stellar population. This work represents the most detailed analysis of the SN Ia-CSM class to date.