Parameters of Star Formation Regions in Galaxies NGC 3963 and NGC 7292

IF 1.1 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Astronomy Reports Pub Date : 2024-10-06 DOI:10.1134/S1063772924700616
A. S. Gusev, F. Kh. Sakhibov, A. V. Moiseev, V. S. Kostiuk, D. V. Oparin
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Abstract

Results of a study of physical parameters of stellar population in star formation regions in galaxies with signs of peculiarity NGC 3963 and NGC 7292 are presented. The study was carried out based on the analysis of photometric (UBVRI bands), H\(\alpha \) and spectroscopic data obtained by the authors, using evolutionary models of stellar population. Among 157 star formation regions identified in galaxies, the young stellar population mass estimates were obtained for 16 of them and the age estimates were obtained for 15. The age of star formation regions clearly correlates with the presence of emission in the H\(\alpha \) line: H II regions in the galaxies are younger than 6–8 Myr, and the regions without gas emission are older. The studied objects are included in the version 3 of our catalogue of photometric, physical and chemical parameters of star formation regions, which includes 1667 objects in 21 galaxies. Key aspects of the technique used to estimate the physical parameters and different relations between observational and physical parameters of the young stellar population in star formation regions are discussed.

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NGC 3963 和 NGC 7292 星系中恒星形成区的参数
本文介绍了对具有特殊征象的星系NGC 3963和NGC 7292中恒星形成区恒星群物理参数的研究结果。这项研究是在分析作者获得的测光(UBVRI波段)、H(\alpha \)和光谱数据的基础上,利用恒星群进化模型进行的。在星系中发现的157个恒星形成区中,有16个获得了年轻恒星群质量估计值,15个获得了年龄估计值。恒星形成区的年龄与H\(α \)线发射的存在明显相关:星系中的H II区域的年龄小于6-8 Myr,而没有气体发射的区域的年龄则更大。所研究的天体包括在我们的第三版恒星形成区光度、物理和化学参数目录中,该目录包括了21个星系中的1667个天体。本文讨论了用于估算恒星形成区年轻恒星群物理参数的关键技术,以及观测参数和物理参数之间的不同关系。
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来源期刊
Astronomy Reports
Astronomy Reports 地学天文-天文与天体物理
CiteScore
1.40
自引率
20.00%
发文量
57
审稿时长
6-12 weeks
期刊介绍: Astronomy Reports is an international peer reviewed journal that publishes original papers on astronomical topics, including theoretical and observational astrophysics, physics of the Sun, planetary astrophysics, radio astronomy, stellar astronomy, celestial mechanics, and astronomy methods and instrumentation.
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