GCIRS 8*
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Sagittarius[1] |
| Right ascension | 17h 45m 40.14s[2] |
| Declination | −28° 59′ 58.7″[2] |
| Characteristics | |
| Spectral type | O[2] |
| Database references | |
| SIMBAD | data |
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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☉.[3]
References
[edit]- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- 1 2 3 "GCIRS 8". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 December 2016.
- ↑ 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. arXiv:astro-ph/0607550. Bibcode:2006ApJ...652..370G. doi:10.1086/507764. ISSN 0004-637X. S2CID 9998286.
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