Massive runaway stars in the Small Magellanic Cloud
Massive runaway stars in the Small Magellanic Cloud
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小麦哲伦星云中巨大的失控恒星
DOI：
10.1051/0004-6361/201015656
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发表时间：
2010
影响因子：
6.5
通讯作者：
P. Kroupa
中科院分区：
文献类型：
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作者：
V. Gvaramadze;V. Gvaramadze;V. Gvaramadze;J. Pflamm;P. Kroupa
利用斯皮策太空望远镜的存档数据，我们首次通过探测它们的弓形激波在小麦哲伦星云（SMC）中发现了十几颗失控的OB星。探测到的弓形激波的几何形状使我们能够推断出相关恒星的运动方向，并确定它们可能的母星团和协会。其中一颗被确认的逃逸恒星AzV 471，已经被认为是高速星星，因为它有很高的特殊径向速度，与当地的系统速度相差40 kms −1。我们讨论的影响，我们的研究结果的问题的起源领域OB星。在星协的范围内发现了几颗产生弓形激波的恒星，这表明这些恒星可能是“外星”恒星，对一些年轻恒星系统的年龄分布有贡献。我们还报道了在早期WN型星星SMC-WR 3（AzV 60 a）上发现的肾形星云。我们将这个星云解释为由于恒星风和周围星际介质之间的相互作用而产生的星际结构。
Using archival Spitzer Space Telescope data, we identified for the first time a dozen runaway OB stars in the Small Magellanic Cloud (SMC) through the detection of their bow shocks. The geometry of detected bow shocks allows us to infer the direction of motion of the associated stars and to determine their possible parent clusters and associations. One of the identified runaway stars, AzV471, was already known as a high-velocity star on the basis of its high peculiar radial velocity, which is offset by � 40 kms −1 from the local systemic velocity. We discuss implications of our findings for the problem of the origin of field OB stars. Several of the bow shockproducing stars are found in the confines of associations, suggesting that these may be “alien” stars contributing to the age spread observed for some young stellar systems. We also report the discovery of a kidney-shaped nebula attached to the early WN-type star SMC-WR3 (AzV60a). We interpreted this nebula as an interstellar structure created owing to the interaction between the stellar wind and the ambient interstellar medium.
VLT-FLAMES 大质量恒星巡天：以麦哲伦星云团 NGC 330、NGC 346、NGC 2004 和 N11 区域为中心的观测
影响因子：
6.5
作者：
Evans C
通讯作者：
Evans C
DOI：
10.1088/0004-6256/136/3/919
发表时间：
2005-06
期刊：
The Astronomical Journal
影响因子：
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作者：
M. Meixner;K. Gordon;R. Indebetouw;J. Hora;B. Whitney;R. Blum;W. Reach;J. Bernard;M. Meade;B. Babler;C. Engelbracht;B. For;K. Misselt;U. Vijh;C. Leitherer;M. Cohen;E. Churchwell;F. Boulanger;J. Frogel;Y. Fukui;J. Gallagher;V. Gorjian;J. Harris;D. Kelly;A. Kawamura;Soyoung Kim;W. Latter;S. Madden;Ciska Markwick-Kemper;A. Mizuno;N. Mizuno;J. Mould;A. Nota;M. Oey;K. Olsen;T. Onishi;R. Paladini;N. Panagia;P. Pérez-González;H. Shibai;Sato Shuji;Linda J. Smith;L. Staveley-Smith;A. Tielens;T. Ueta;S. V. Dyk;K. Volk;M. Werner;D. Zaritsky
通讯作者：
M. Meixner;K. Gordon;R. Indebetouw;J. Hora;B. Whitney;R. Blum;W. Reach;J. Bernard;M. Meade;B. Babler;C. Engelbracht;B. For;K. Misselt;U. Vijh;C. Leitherer;M. Cohen;E. Churchwell;F. Boulanger;J. Frogel;Y. Fukui;J. Gallagher;V. Gorjian;J. Harris;D. Kelly;A. Kawamura;Soyoung Kim;W. Latter;S. Madden;Ciska Markwick-Kemper;A. Mizuno;N. Mizuno;J. Mould;A. Nota;M. Oey;K. Olsen;T. Onishi;R. Paladini;N. Panagia;P. Pérez-González;H. Shibai;Sato Shuji;Linda J. Smith;L. Staveley-Smith;A. Tielens;T. Ueta;S. V. Dyk;K. Volk;M. Werner;D. Zaritsky