An upper limit on the X-ray luminosity of the black hole - microlens OGLE-1999-BUL-32

Details An upper limit on the X-ray luminosity of the black hole - microlens OGLE-1999-BUL-32 An upper limit on the X-ray luminosity of the black hole - microlens OGLE-1999-BUL-32

2001-09-03

arxiv.org/abs/astro-ph/0109036v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures. Accepted for publication in Astronomy Letters

Scientific paper

10.1134/1.1448842

We present an upper limit on the 3--20 keV X-ray flux from the black hole - microlens OGLE-1999-BUL-32, based on RXTE/PCA scans over the Galactic Center region in 1999-2000. It is shown that the X-ray luminosity of the black hole did not exceed L(3-20 keV)<3e33(d/1kpc)^2 ergs/s (where d is the distance to the black hole). Near the maximum of the background star amplification by the microlens (July 6, 1999), the upper limit on the X-ray flux corresponds to an X-ray luminosity L(3-20 keV)<7e33(d/1kpc)^2 ergs/s.

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