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Panoramic Spectroscopy of Galaxies with Star-Formation Regions. A Study of SBS 1539+597
Astrophysics ( IF 0.5 ) Pub Date : 2021-03-08 , DOI: 10.1007/s10511-021-09663-6
S. Hakopian , S. Dodonov , A. Moiseev

The results of detailed studies of the galaxy with star-formation activity SBS 1539+597 based on panoramic spectroscopy are presented. This work was done as part of our project for the comprehensive study of ~500 galaxies in seven selected fields of the Second Byurakan Survey (SBS). The observations of SBS 1539+597 were made on the 6-m telescope at the Special Astrophysical Observatory of the Russian Academy of Sciences using the multipupil MPFS spectrograph. The data presented here include two-dimensional charts of the major parameters of the emission in the Balmer Hα line, the forbidden doublets of nitrogen [NII] 6548, 6583 and sulfur [SII] 6716, 6731, and the continuum. A detailed analysis of the data reveals, in particular: a star-formation region in the central part of the galaxy, where two HII regions are differentiated (the brighter one is identified with the object SDSS J154019.70 + 593606.1); a small turbulent region adjacent to them; and predominant rotation of the radiating gases over the disk structure of which a separation of the outgoing branch that begins in the starformation region is clearly visible. Numerical values are given for the major parameters describing the star-formation region and the galaxy as a a whole.



中文翻译:

具有恒星形成区的星系的全景光谱。SBS 1539 + 597的研究

提出了基于全景光谱对具有恒星形成活动的星系SBS 1539 + 597进行详细研究的结果。这项工作是我们的计划的一部分,该计划是对第二次Byurakan调查(SBS)的七个选定领域中的约500个星系进行综合研究的一部分。使用多瞳孔MPFS光谱仪在俄罗斯科学院特殊天体观测站的6米望远镜上对SBS 1539 + 597进行了观测。此处提供的数据包括BalmerHα线中主要发射参数的二维图表,氮[NII] 6548、6583和硫[SII] 6716、6731的禁止二重峰以及连续体。对数据的详细分析特别揭示了:在银河系中心部分的恒星形成区域,区分两个HII区域(较亮的一个区域用对象SDSS J154019.70 + 593606.1标识);与它们相邻的小湍流区域;辐射气体在磁盘结构上的主要旋转,从星形结构区域开始的流出分支的分离清晰可见。给出了描述整个恒星形成区域和整个星系的主要参数的数值。

更新日期:2021-03-08
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