Discovery of a detached HI gas shell surrounding alpha Orionis
作者： T. Le Bertre , L. D. Matthews , E. Gérard , Y. Libert
DOI: 10.1111/J.1365-2966.2012.20853.X
关键词:
摘要: We report the detection of HI line at 21 cm in direction alpha Ori with Nancay Radiotelescope and Very Large Array. The observations confirm previous emission centered on Ori, but additionally reveal for first time a quasi-stationary detached shell neutral atomic hydrogen ~4 arcmin. diameter (0.24 pc distance 200 pc). appears elongated opposite to star's space motion. A simple model shows that this gas can result from collision stellar wind local interstellar medium (ISM). It implies has been losing matter rate ~ 1.2x10^-6 solar masses per year past 8x10^4 years. In addition, we associated far-infrared arc located 6 north-east suggested trace bow shock resulting motion star through ISM. also by Galaxy Evolution Explorer (GALEX) far-UV counterpart arc.
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sci-hub.se 参考文章(70)
Jeremy Lim, Chris L. Carilli, Stephen M. White, Anthony J. Beasley, Ralph G. Marson, Large convection cells as the source of Betelgeuse's extended atmosphere Nature. ,vol. 392, pp. 575- 577 ,(1998) , 10.1038/33352
Hilding Neilson, John B. Lester, Xavier Haubois, Weighing Betelgeuse: Measuring the mass of alpha Orionis from stellar limb-darkening arXiv: Solar and Stellar Astrophysics. ,(2011)
Y. Libert, E. Gérard, T. Le Bertre, The formation of a detached shell around the carbon star Y CVn Monthly Notices of the Royal Astronomical Society. ,vol. 380, pp. 1161- 1171 ,(2007) , 10.1111/J.1365-2966.2007.12154.X
Mark J. Reid, Lynn D. Matthews, Very Large Array Observations of H I in the Circumstellar Envelopes of Asymptotic Giant Branch Stars The Astronomical Journal. ,vol. 133, pp. 2291- 2309 ,(2007) , 10.1086/512613
W. C. Danchi, M. Bester, C. G. Degiacomi, L. J. Greenhill, C. H. Townes, Characteristics of dust shells around 13 late-type stars. The Astronomical Journal. ,vol. 107, pp. 1469- 1513 ,(1994) , 10.1086/116960
Toshiya Ueta, Hideyuki Izumiura, Issei Yamamura, Yoshikazu Nakada, Mikako Matsuura, Yoshifusa Ita, Toshihiko TanabÉ, Hinako Fukushi, Noriyuki Matsunaga, Hiroyuki Mito, AKARI/FIS mapping of the ISM-wind bow shock around α Orionis Publications of the Astronomical Society of Japan. ,vol. 60, pp. 407- ,(2008) , 10.1093/PASJ/60.SP2.S407
P. J. Huggins, CO in the circumstellar envelope of Alpha Orionis The Astrophysical Journal. ,vol. 313, pp. 400- 407 ,(1987) , 10.1086/164977
Graham M. Harper, Alexander Brown, Jeremy Lim, A Spatially Resolved, Semiempirical Model for the Extended Atmosphere of α Orionis (M2 Iab) The Astrophysical Journal. ,vol. 551, pp. 1073- 1098 ,(2001) , 10.1086/320215
Bertrand Plez, Emily M. Levesque, Emily M. Levesque, Emily M. Levesque, Andre Maeder, Philip Massey, Philip Massey, K. A. G. Olsen, Georges Meynet, Eric Josselin, The effective temperature scale of galactic red supergiants : Cool, but not as cool as we thought The Astrophysical Journal. ,vol. 628, pp. 973- 985 ,(2005) , 10.1086/430901
D. Christopher Martin, James Fanson, David Schiminovich, Patrick Morrissey, Peter G. Friedman, Tom A. Barlow, Tim Conrow, Robert Grange, Patrick N. Jelinsky, Bruno Milliard, Oswald H. W. Siegmund, Luciana Bianchi, Yong-Ik Byun, Jose Donas, Karl Forster, Timothy M. Heckman, Young-Wook Lee, Barry F. Madore, Roger F. Malina, Susan G. Neff, R. Michael Rich, Todd Small, Frank Surber, Alex S. Szalay, Barry Welsh, Ted K. Wyder, The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission The Astrophysical Journal. ,vol. 619, pp. 1- ,(2005) , 10.1086/426387