Detection of compact objects by means of gravitational lensing in binary systems

被引：14

作者：

Beskin, GM ^{[1
]}

Tuntsov, AV

机构：

[1] Special Astrophys Observ, Nizhnii Arkhyz 369167, Karachaevo Cher, Russia

[2] Moscow MV Lomonosov State Univ, Sterberg Astron Inst, Moscow, Russia

[3] Isaac Newton Inst Chile, SAO Branch Programme, St Petersburg, Russia

来源：

ASTRONOMY & ASTROPHYSICS | 2002年 / 394卷 / 02期

关键词：

cosmology : gravitational lensing; black hole physics; stars : binaries : close; stars : neutron; stars : white dwarfs;

D O I：

10.1051/0004-6361:20021150

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the gravitational magnification of light for binary systems containing two compact objects: white dwarfs, a white dwarf and a neutron star or a white dwarf and a black hole. Light curves of the flares of the white dwarf caused by this effect were built in analytical approximations and by means of numerical calculations. We estimate the probability of the detection of these events in our Galaxy for different types of binaries and show that gravitational lensing provides a tool for detecting such systems. We propose to use the facilities of the Sloan Digital Sky Survey (SDSS) to search for these flares. It is possible to detect several dozen compact object pairs in such a programme over 5 years. This programme is apparently the best way to detect stellar mass black holes with open event horizons.

引用

页码：489 / 503

页数：15

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