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arXiv 1802.01724astro-ph.GA
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SDSS-IV/APOGEE SURVEY中的大质量恒星。I- OB星级

Massive stars in the SDSS-IV/APOGEE SURVEY. I- OB stars

A. Roman-Lopes, C. RomÁn-ZÚÑiga, Mauricio Tapia, Drew Chojnowski, Y. GÓmez Maqueo Chew, D. A. GarcÍa-HernÁndez, Jura Borissova, Dante Minniti, Kevin R. Covey, P… 展开作者

A. Roman-Lopes, C. RomÁn-ZÚÑiga, Mauricio Tapia, Drew Chojnowski, Y. GÓmez Maqueo Chew, D. A. GarcÍa-HernÁndez, Jura Borissova, Dante Minniti, Kevin R. Covey, PenÉlope Longa-PeÑa, J. G. Fernandez-Trincado, Olga Zamora, Christian Nitschelm

摘要:

在这项工作中,我们利用DR 14 APOGEE光谱数据研究了92个已知OB星的样本。我们开发了一种近红外半经验光谱分类方法,成功地用于四个新的样本,以前被归类为后来的B型星的情况下。我们的结果与由ECHELLE光谱独立确定的结果吻合得很好,与“正则”MK蓝光学系统的光谱类型一致。这证实了APOGEE摄谱仪也可以作为一个强大的工具,在调查旨在揭示和研究大量的中度和高度模糊的OB星仍然隐藏在银河系。

英文摘要:

In this work we make use of DR14 APOGEE spectroscopic data to study a sample of 92 known OB stars. We developed a near-infrared semi-empirical spectral classification method that was successfully used in case of four new exemplars, previously classified as later B-type stars. Our results agree well with those determined independently from ECHELLE optical spectra, being in line with the spectral types derived from the "canonical" MK blue optical system. This confirms that the APOGEE spectrograph can also be used as a powerful tool in surveys aiming to unveil and study large number of moderately and highly obscured OB stars still hidden in the Galaxy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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