Astronomy:GCIRS 8*
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Short description: Star in the constellation Sagittarius
250px The bow shock around IRS 8 imaged by the Gemini Observatory | |
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 17h 45m 40.14s[1] |
| Declination | −28° 59′ 58.7″[1] |
| Characteristics | |
| Spectral type | O[1] |
| Database references | |
| SIMBAD | data |
GCIRS 8* (Galactic Centre IRS 8*) is a young massive star in the Galactic Center region. IRS 8 is an infra-red source identified as a bowshock. The star causing the bowshock has been classified as an O5-O6 giant or supergiant several hundred thousand times as luminous as the sun. It is estimated to be 3.5 million years old, although if it is a binary then it would probably be older. The mass is estimated at 38 M☉.[2]
References
- ↑ 1.0 1.1 1.2 "GCIRS 8". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GCIRS+8.
- ↑ Geballe, T. R.; Najarro, F.; Rigaut, F.; Roy, J.-R. (2006). "TheK-Band Spectrum of the Hot Star in IRS 8: An Outsider in the Galactic Center?". The Astrophysical Journal 652 (1): 370–375. doi:10.1086/507764. ISSN 0004-637X. Bibcode: 2006ApJ...652..370G.
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