Astronomy:W43A
From HandWiki
Short description: X-ray star in the constellation Aquila
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Aquila |
| Right ascension | 18h 47m 41.14s[1] |
| Declination | −01° 45′ 11.4″[1] |
| Characteristics | |
| Spectral type | OH |
| Variable type | Asymptotic giant branch |
| Astrometry | |
| Radial velocity (Rv) | 34[2] km/s |
| Distance | 2220+380 −400[2] pc |
| Details | |
| Luminosity | 12,000[3] L☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
W43A or IRAS 18450-0148 is a late-type star with an envelope of OH/IR type with a magnetically collimated jet (a protoplanetary nebula).[4] The star is in the early stages of becoming a planetary nebula, a process that will take several thousand years.[2]
References
- ↑ 1.0 1.1 Spitzer Science, Center (2009). "VizieR Online Data Catalog: GLIMPSE Source Catalog (I + II + 3D) (IPAC 2008)". VizieR On-line Data Catalog. Bibcode: 2009yCat.2293....0S.
- ↑ 2.0 2.1 2.2 Tafoya, Daniel; Imai, Hiroshi; Gómez, José F.; Nakashima, Jun-Ichi; Orosz, Gabor; Yung, Bosco H. K. (2020). "Shaping the Envelope of the Asymptotic Giant Branch Star W43A with a Collimated Fast Jet". The Astrophysical Journal 890 (1): L14. doi:10.3847/2041-8213/ab70b8. Bibcode: 2020ApJ...890L..14T.
- ↑ Vickers, Shane B.; Frew, David J.; Parker, Quentin A.; Bojičić, Ivan S. (2015). "New light on Galactic post-asymptotic giant branch stars - I. First distance catalogue". Monthly Notices of the Royal Astronomical Society 447 (2): 1673. doi:10.1093/mnras/stu2383. Bibcode: 2015MNRAS.447.1673V.
- ↑ Vlemmings, Wouter H.T.; Diamond, Philip J.; Imai, Hirosh (2006). "A magnetically collimated jet from an evolved star". Nature 440 (7080): 58–60. doi:10.1038/nature04466. PMID 16511488. Bibcode: 2006Natur.440...58V.
Further reading
- Imai, Hiroshi; Obara, Kumiko; Diamond, Philip J.; Omodaka, Toshihiro et al. (2002). "A collimated jet of molecular gas from a star on the asymptotic giant branch". Nature 417 (6891): 829–831. doi:10.1038/nature00788. PMID 12075345. Bibcode: 2002Natur.417..829I.
- Imai, Hiroshi; Nakashima, Jun-ichi; Diamond, Philip J.; Miyazaki, Atsushi et al. (2005). "A Biconically Expanding Flow in W43A Traced by SiO Maser Emission". The Astrophysical Journal 622 (2): L125–L128. doi:10.1086/429820. Bibcode: 2005ApJ...622L.125I.
- Deacon, R. M.; Chapman, J. M.; Green, A. J.; Sevenster, M. N. (2007). "H2O Maser Observations of Candidate Post-AGB Stars and Discovery of Three High-Velocity Water Sources". The Astrophysical Journal 658 (2): 1096–1113. doi:10.1086/511383. Bibcode: 2007ApJ...658.1096D.
- M. Szymczak; E. Gérard (2004). "Polarimetric observations of OH masers in proto-planetary nebulae". Astronomy & Astrophysics 423: 209–219. doi:10.1051/0004-6361:20040461. Bibcode: 2004A&A...423..209S. http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/full/2004/31/aa0461-04/aa0461-04.fig.html.
 |  |
