The Shortest-Known–Period Star Orbiting Our Galaxy’s Supermassive Black Hole-Reference-Cited by-全球学者库

The Shortest-Known–Period Star Orbiting Our Galaxy’s Supermassive Black Hole

Published:2012-10-05 Issue:6103 Volume:338 Page:84-87
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Meyer L.¹,Ghez A. M.¹,Schödel R.²,Yelda S.¹,Boehle A.¹,Lu J. R.³,Do T.⁴⁵,Morris M. R.¹,Becklin E. E.¹,Matthews K.⁶

Affiliation:

1. Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, CA 90095-1547, USA.

2. Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomia S/N, 18008 Granada, Spain.

3. Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USA.

4. Department of Physics and Astronomy, University of California Irvine, Irvine, CA 92697-4575, USA.

5. Dunlap Institute for Astronomy and Astrophysics, University of Toronto, Toronto M5S 3H4, Ontario, Canada.

6. Division of Mathematics, Physics and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA.

Abstract

Close to a Black Hole At the center of our Galaxy, there is a black hole that is 4 million times as massive as the Sun. Using data from the Keck Observatory, Meyer et al. (p. 84 ) detected a star orbiting this black hole with a period of 11.5 years, the shortest period among the stars orbiting it. The star is the second well-sampled star with an orbital period under 20 years. Having detailed knowledge about two stars with short periods and full orbit coverage will be crucial in testing Einstein's theory of general relativity in the gravitational field close to a massive black hole.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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