1E 1740.7 - 2942 - A black hole in a molecular cloud?

Details 1E 1740.7 - 2942 - A black hole in a molecular cloud? 1E 1740.7 - 2942 - A black hole in a molecular cloud?

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...251l..43m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 251, no. 2, Nov. 1991, p. L43-L46.

Astronomy and Astrophysics

Astronomy

84

Black Holes (Astronomy), Galactic Nuclei, Gamma Ray Astronomy, Interstellar Gas, Milky Way Galaxy, Molecular Clouds, Electron Transitions, Millimeter Waves, Positron Annihilation, X Ray Sources

Scientific paper

Results of observations of molecular transitions at millimeter wavelengths are presented which show that the most powerful compact source of radiation in the Galaxy resulting from matter-antimatter annihilation may be associated with dense interstellar gas. A molecular cloud is found coincident with the position of the high energy source 1E1740.7 - 2942. It is proposed that this molecular cloud is the cold high-density interstellar environment needed for electron-positron annihilation, and that it could provide the fuel to directly feed the high-energy source by a Bondi-Hoyle accretion mechanism. The source is viewed as a compact object such as a stellar-mass black hole passing slowly through one of the many dense and massive clouds of the Galactic center region.

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