W43A

X-ray star in the constellation Aquila

W43A
Observation data Epoch J2000 Equinox J2000
Constellation	Aquila
Right ascension	18^h 47^m 41.14^s^[1]
Declination	−01° 45′ 11.4″^[1]
Characteristics
Spectral type	OH
Variable type	Asymptotic giant branch
Astrometry

Radial velocity (R_v)	34^[2] km/s
Distance	2220+380 −400^[2] pc

Details

Luminosity	12,000^[3] `L`_☉

Other designations
W 43A, IRAS 18450-0148, 2MASS J18474097-0144553
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

^ ^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.
^ ^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.
^ 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.
^ 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.

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. Bibcode:2002Natur.417..829I. doi:10.1038/nature00788. PMID 12075345. S2CID 27760425.
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. Bibcode:2005ApJ...622L.125I. doi:10.1086/429820.
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. arXiv:astro-ph/0702086. Bibcode:2007ApJ...658.1096D. doi:10.1086/511383. S2CID 7776074.
M. Szymczak & E. Gérard (2004). "Polarimetric observations of OH masers in proto-planetary nebulae". Astronomy & Astrophysics. 423: 209–219. arXiv:astro-ph/0405316. Bibcode:2004A&A...423..209S. doi:10.1051/0004-6361:20040461. S2CID 15651391.

Constellation of Aquila

Stars

Bayer	α (Altair) β (Alshain) γ (Tarazed) δ ε ζ (Okab) η θ (Tseen Foo) ι κ λ μ ν ξ (Libertas) ο π σ τ υ φ χ ψ ω¹ ω² A b c d e f g h i k l
Flamsteed	4 5 7 8 10 11 18 19 20 21 22 23 24 42 45 46 51 56 57 58 62 64 66 68 69 70 14 Sge 62 Ser 64 Sgr
Variable	R U V W TT FF QS V368 V450 V500 V603 V604 V605 V606 V923 V1286 V1291 V1298 V1302 V1315 V1333 V1339 V1427 V1428 V1429 V1472 V1487 V1494 V1654 V1672 V1691 V1703 (Phoenicia) V1828 V1936
HR	7099 7288 7300 7307 7396 7456 7569 7598 7599 7693 7717 7803
HD	179079 183263 187734 192699 (Chechia)
Other	CoRoT-2 CoRoT-3 CoRoT-8 Gaia BH3 HAT-P-41 PSR J1856+0245 PSR J1903+0327 PSR B1913+16 (Hulse–Taylor) PSR J1951+1123 SGR 1900+14 SS 433 W43A W49-2 WASP-80 (Petra) WD J1953−1019 ZTF J1901+1458