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Panoramic Spectroscopy of Galaxies with Star Formation Regions. A Study of SBS0750+603B
Astrophysics ( IF 0.5 ) Pub Date : 2020-02-01 , DOI: 10.1007/s10511-020-09612-9
S. A. Hakopian , S. N. Dodonov , A. V. Moiseev , A. A. Smirnova

Details of investigation of SBS0750+603B by providing 3D-spectroscopy are presented as part of a study of a sample of about 350 galaxies of star-formation activity. The observations were made on the 6-m telescope at the Special Astrophysical Observatory (SAO) of the Russian Academy of Sciences using the MPFS multi-pupil spectrograph. An analysis of the surface distributions of the major parameters of emission in the lines of the hydrogen Balmer Hα and the forbidden doublets of nitrogen [NII]6548,6583 and [SII]6716,6731, along with using data from astroarchives, revealed the morphological and kinematic features of this object. Two main components, A and B, are identified in the structure of SBS0750+603B that are associated with the two observed regions of ionized hydrogen. Their spatial characteristics and radiative parameters in the detected spectrum lines are shown. In particular, the star formation rates SFR(Hα) in components A and B are estimated to be 0.42 and 0.05 M ⊙ /year, respectively, which indicates that they differ substantially. The distribution of the radial velocities in Hα is indicative of an axial rotation in which two arms show up separately. Their mutual position and enhanced dust concentration are the likely causes of the existence of a brightness contrast plateau in the center of component A.

中文翻译:

具有恒星形成区域的星系的全景光谱。SBS0750+603B研究

通过提供 3D 光谱研究 SBS0750+603B 的详细信息作为对大约 350 个恒星形成活动星系样本研究的一部分。这些观测是在俄罗斯科学院特殊天体物理天文台 (SAO) 的 6 米望远镜上使用 MPFS 多瞳光谱仪进行的。对氢巴尔默 Hα 线和氮的禁止双峰 [NII]6548,6583 和 [SII]6716,6731 中主要发射参数的表面分布的分析,以及使用来自天体档案的数据,揭示了形态以及该物体的运动学特征。在 SBS0750+603B 的结构中确定了两个主要成分 A 和 B,它们与两个观察到的电离氢区域相关。显示了它们在检测到的谱线中的空间特征和辐射参数。特别是,组分 A 和 B 中的恒星形成率 SFR(Hα) 估计分别为 0.42 和 0.05 M ⊙ /年,这表明它们存在很大差异。Hα 中径向速度的分布表示轴向旋转,其中两个臂分别出现。它们的相互位置和增强的灰尘浓度可能是A组分中心存在亮度对比平台的可能原因。Hα 中径向速度的分布表示轴向旋转,其中两个臂分别出现。它们的相互位置和增强的灰尘浓度可能是A组分中心存在亮度对比平台的可能原因。Hα 中径向速度的分布表示轴向旋转,其中两个臂分别出现。它们的相互位置和增强的灰尘浓度可能是A组分中心存在亮度对比平台的可能原因。
更新日期:2020-02-01
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