| 释义 |
- References
{{no footnotes|date=April 2017}}{{Starbox begin |{{Starbox observe | epoch=J2000 | ra={{RA|18|47|40.97}} | dec={{DEC|-01|44|55.4}} | appmag_v= | constell=Aquila }}{{Starbox character | class=OH | r-i = | v-r = | b-v = | u-b = | variable= Asymptotic giant branch }} {{Starbox astrometry | radial_v=13.8 | prop_mo_ra= | prop_mo_dec= | parallax= | p_error= | absmag_v=
|dist_ly=8500
}}{{Starbox catalog
| names= W 43 A, IRAS 18450-0148, 2MASS J18474097-0144553 }}{{Starbox reference |
| ARICNS = }}{{Starbox end}} 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- {{cite journal|bibcode=2006Natur.440...58V|author= Vlemmings, Wouter H.T.|author2= Diamond, Philip J.|author3= Imai, Hirosh |title=A magnetically collimated jet from an evolved star|journal=Nature |volume=440|pages=58–60|date=2006|doi=10.1038/nature04466|issue=7080|pmid=16511488|arxiv = astro-ph/0603003 }}
- {{cite journal|bibcode=2002Natur.417..829I|display-authors= 4|author= Imai, Hiroshi|author2= Obara, Kumiko|author3= Diamond, Philip J.|author4= Omodaka, Toshihiro|author5= Sasao, Tetsuo |title=A collimated jet of molecular gas from a star on the asymptotic giant branch|journal=Nature |volume=417|pages=829–831|date=2002|doi=10.1038/nature00788|pmid=12075345|issue=6891}}
- {{cite journal|bibcode=2005ApJ...622L.125I|display-authors=4|author=Imai, Hiroshi|author2=Nakashima, Jun-ichi|author3=Diamond, Philip J.|author4=Miyazaki, Atsushi|author5=Deguchi, Shuji|title=A Biconically Expanding Flow in W43A Traced by SiO Maser Emission|journal=The Astrophysical Journal |volume=622|issue=2|pages=L125–L128|date=2005|doi=10.1086/429820}}
- {{cite journal|bibcode=2007ApJ...658.1096D|author=Deacon, R. M.|author2=Chapman, J. M.|author3=Green, A. J.|author4=Sevenster, M. N.|title=H2O Maser Observations of Candidate Post-AGB Stars and Discovery of Three High-Velocity Water Sources|journal=The Astrophysical Journal |volume=658|issue=2|pages=1096–1113|date=2007|doi=10.1086/511383|arxiv = astro-ph/0702086 }}
- {{cite journal|url=http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/full/2004/31/aa0461-04/aa0461-04.fig.html|author=M. Szymczak|author2=E. Gérard|last-author-amp=yes |title=Polarimetric observations of OH masers in proto-planetary nebulae|journal=Astronomy & Astrophysics |volume=423|pages=209–219|date=2004|doi=10.1051/0004-6361:20040461|bibcode=2004A&A...423..209S|arxiv = astro-ph/0405316 }}
{{Stars of Aquila}}{{giant-star-stub}} 3 : Aquila (constellation)|Asymptotic-giant-branch stars|IRAS catalogue objects |