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10.2. High proper motions in the vicinity of Sgr A∗: unambiguous evidence for a massive central black hole

Published online by Cambridge University Press:  25 May 2016

A. M. Ghez ,
B. L. Klein ,
C. McCabe ,
M. Morris  and
E. E. Becklin
A. M. Ghez
Affiliation:
University of California Los Angeles Department of Physics and Astronomy Los Angeles, CA 90095-1562 USA
B. L. Klein
Affiliation:
University of California Los Angeles Department of Physics and Astronomy Los Angeles, CA 90095-1562 USA
C. McCabe
Affiliation:
University of California Los Angeles Department of Physics and Astronomy Los Angeles, CA 90095-1562 USA
M. Morris
Affiliation:
University of California Los Angeles Department of Physics and Astronomy Los Angeles, CA 90095-1562 USA
E. E. Becklin
Affiliation:
University of California Los Angeles Department of Physics and Astronomy Los Angeles, CA 90095-1562 USA

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Although the notion that the Milky Way galaxy contains a supermassive central black hole has been around for more than two decades, it has been difficult to prove that one exists. The challenge is to assess the distribution of matter in the few central parsecs of the Galaxy. Assuming that gravity is the dominant force, the motion of the stars and gas in the vicinity of the putative black hole offers a robust method for accomplishing this task, by revealing the mass interior to the radius of the objects studied. Thus objects located closest to the Galactic Center provide the strongest constraints on the black hole hypothesis.

Type
Part III. Black Holes and Central Activity
Information
Symposium - International Astronomical Union , Volume 184: The Central Regions of the Galaxy and Galaxies , 1998 , pp. 433 - 434
Copyright
Copyright © Kluwer 1998 

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