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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). The star is in the early stages of becoming a planetary nebula, a process that will take several thousand years.

References

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. ^ 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.

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. 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.

v t e Constellation of Aquila
Aquila in Chinese astronomy List of stars in 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 ω ω 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 7143 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
Exoplanets CoRoT-2b CoRoT-3b CoRoT-8b CoRoT-10b HD 179079 b HD 183263 b c HD 192263 b HD 192699 b ξ Aquilae b
Star clusters NGC 6709 NGC 6738 NGC 6755 NGC 6756 NGC 6760
Nebulae	NGC 6741 6751 6778 6781 6790 Other Abell 48 Abell 70 E Nebula Hen 2-428 HESS J1857+026 Kesteven 75 Smith's Cloud W43 W49 W49B W50
Galaxies	NGC 6814 Other IC 1327
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