GRS 1915+105

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GRS 1915+105 is an X-ray binary star system which features a regular star and a black hole. It was discovered on August 15, 1992 by Granat.^[1] "GRS" stands for "GRANAT source", "1915" is the right ascension (19 hours and 15 minutes) and "105" is declination in units of 0.1 degree (i.e. its declination is 10.5 degrees). The binary system lies 40,000 light-years away in Aquila. GRS 1915+105 is the heaviest of the stellar black holes so far known in the Milky Way Galaxy. It is also a microquasar, and it appears that the black hole may rotate at 1,150 times per second.^[2]

[edit] References

1. ^ Infrared Spectroscopy of the Superluminal Galactic Source GRS 1915+105 during the 1994 September Outburst
2. ^ Black hole spins at the limit | COSMOS magazine

[edit] External links

• A Very Massive Stellar Black Hole in the Milky Way Galaxy November 28, 2001 (ESO)

This binary or multiple star system-related article is a stub. You can help Wikipedia by expanding it.

This astronomy related article is a stub. You can help Wikipedia by expanding it.

Categories: X-ray binaries | Aquila constellation | Multiple star stubs | Astronomy stubs

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• This page was last modified 02:52, 13 February 2008 by Wikipedia user DumZiBoT. Based on work by Wikipedia user(s) Miguel1626 and Anonymous user(s) of Wikipedia.
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