The white dwarf companion to PSR B0820+02

被引：0
|
作者：
Koester, D [1 ]
机构：
[1] Univ Kiel, Inst Theoret Phys & Astrophys, D-24098 Kiel, Germany
来源：
12TH EUROPEAN CONFERENCE ON WHITE DWARF STARS, PROCEEDINGS | 2001年 / 226卷
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report new spectroscopic and photometric observations of the white dwarf companion to the pulsar PSR B0820+02. The white dwarf is a normal DA white dwarf with an effective temperature of 15000 K and a mass of 0.6 M-circle dot. The mass and orbital period of this system confirms recent simulations of the evolution of a neutron star - main sequence binary with mass exchange. The cooling age of the white dwarf is larger than the spin-down age of the pulsar, unless a braking index of 2.2 is assumed(1).
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页码：234 / 239
页数：6
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