New results from the Supernova Ia Progenitor Survey

被引：0

作者：

Napiwotzki, R ^{[1
]}

Karl, CA ^{[1
]}

Nelemans, G ^{[1
]}

Yungelson, L ^{[1
]}

Christlieb, N ^{[1
]}

Drechsel, H ^{[1
]}

Heber, U ^{[1
]}

Homeier, D ^{[1
]}

Koester, D ^{[1
]}

Kruk, J ^{[1
]}

Leibundgut, B ^{[1
]}

Marsh, TR ^{[1
]}

Moehler, S ^{[1
]}

Renzini, A ^{[1
]}

Reimers, D ^{[1
]}

机构：

[1] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

来源：

14th European Workshop on White Dwarfs, Proceedings | 2005年 / 334卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on a systematic radial velocity survey for double degenerate (DD) binaries as potential progenitors of type la supernovae: SPY (ESO Supernovae la Progenitor surveY). More than 1000 white dwarfs and pre-white dwarfs were observed with the VLT. Our aim is to perform a statistically significant test of the DD scenario. SPY detected more than 100 new binary white dwarfs, dramatically increasing the number of known DDs. System parameters are determined from ongoing follow-up observations. Our sample includes systems with masses close to the Chandrasekhar limit and a probable SN Ida progenitor candidate.

引用

页码：375 / 380

页数：6

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