Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.104b&link_type=abstract
Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:
Astronomy and Astrophysics
Astrophysics
Scientific paper
We present the results and perspectives of the programm of the search for single stellar mass black holes (BHs) in the solar neighbourhood. Emission of the interstellar plasma accreting onto BH has low luminosity and flat non-thermal optical spectra without any lines. The observational evidence for identification of the BH is the fast irregular variability of its brightness. The results of photometrical observations of the objects with continuum optical spectra (DC-dwarfs and star-like radio sources) at 6-m telescope with high time resolution are presented. In none of them variability on time scales in the range 10^{-6}-102s has been found. We obtained upper limit - 5cdot 10^{-4} - for the frequency of the slow moving bright (< 18m) BH among usual stars in the solar neighbourhood. The possibilities of the detection BH of 20m-25m by panoramic photometer with high time resolution are discussed.
Beskin Gregory
Golden Aaron
Plokhotnichenko Vladimir
Redfern Michael
Shearer Andrew
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