W43A

W43A
Observation data
Epoch J2000      Equinox J2000
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
Distance2220+380
−400[2] pc
Details
Luminosity12,000[3] L☉
Other designations
W 43A, IRAS 18450-0148, 2MASS J18474097-0144553
Database references
SIMBADdata

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. ^ a b 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. ^ a b c 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. arXiv:2006.07157. Bibcode:2020ApJ...890L..14T. doi:10.3847/2041-8213/ab70b8. S2CID 213655593.
  3. ^ 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. arXiv:1403.7230. Bibcode:2015MNRAS.447.1673V. doi:10.1093/mnras/stu2383. S2CID 119245776.
  4. ^ Vlemmings, Wouter H.T.; Diamond, Philip J.; Imai, Hirosh (2006). "A magnetically collimated jet from an evolved star". Nature. 440 (7080): 58–60. arXiv:astro-ph/0603003. Bibcode:2006Natur.440...58V. doi:10.1038/nature04466. PMID 16511488. S2CID 1899909.

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