Volume 394, Number 2, November I 2002
|Page(s)||489 - 503|
|Section||Interstellar and circumstellar matter|
|Published online||15 October 2002|
Detection of compact objects by means of gravitational lensing in binary systems
Special Astrophysical Observatory, Nizhnij Arkhyz, Karachaevo-Cherkesia, 369167, Russia
2 Isaac Newton Institute of Chile, SAO Branch programme, Russia
3 Sternberg Astronomical Institute of the Moscow State University, Moscow, Russia e-mail: firstname.lastname@example.org
Corresponding author: G. Beskin, email@example.com
Accepted: 20 June 2002
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.
Key words: cosmology: gravitational lensing / black hole physics / stars: binaries: close / stars: neutron / stars: white dwarfs
© ESO, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.