Sagittarius A*: A Supermassive Black Hole or a Spatially Extended Object? | Zendy

Faustin Munyaneza | Zendy; D. Tsiklauri | Zendy; Raoul D. Viollier | Zendy

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Sagittarius A*: A Supermassive Black Hole or a Spatially Extended Object?

Author(s) -

Faustin Munyaneza,

D. Tsiklauri,

Raoul D. Viollier

Publication year - 1998

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/311770

Subject(s) - galactic center , physics , supermassive black hole , sagittarius a* , sagittarius , astrophysics , astronomy , schwarzschild radius , black hole (networking) , stars , galaxy , accretion (finance) , milky way , computer network , routing protocol , routing (electronic design automation) , computer science , link state routing protocol

We report here on a calculation of possible orbits of the fast movinginfrared source S1 which has been recently observed by Eckart and Genzel (1997)near the Galactic center. It is shown that tracking of the orbit of S1 or anyother fast moving star near Sgr A^* offers a possibility of distinguishingbetween the supermassive black hole and extended object scenarios of Sgr A^*.In our calculations we assumed that the extended object at the Galactic centeris a non-baryonic ball made of degenerate, self-gravitating heavy neutrinomatter, as it has been recently proposed by Tsiklauri & Viollier (1998a,b).Comment: AASTEX, 5 postscript figs., submitted to ApJ Let

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