利用不同类型螺旋星系中的塔利-费舍关系研究气态恒星动力学特性

Q4 Earth and Planetary Sciences
Rabab M. Jasim, Al Najm M.N.
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引用次数: 0

摘要

本文的目的是在不同的旋涡星系中,利用缩放系数关系(如Tully-Fisher)显示气态恒星动力学特征。我们从以往的文献中选取了116个早期螺旋星系、150个中期螺旋星系和146个晚期螺旋星系的形态样本,并利用统计软件(statistic-win-program)找出了不同类型螺旋星系中气态恒星的主要运动特性(质量、光度、转速和重子)等多个考察因素之间的关联。我们得出的结论是,在三种类型的螺旋星系(早期、中期和晚期)中,Log Vrot.max.与Log Mstar(B-V)之间以及Log Vrot.max.与Log Mbar(B-V)之间都存在着强有力的正相关关系,而在所有不同类型的螺旋星系中,除了Log Mbar(B-V)与Log MB之间的关系外,Log MB与Log Vrot.max.之间也存在着急剧的负相关关系,其部分相关系数(R≈-0.85)为负。结果表明,对于早期和中期类型的旋涡星系,重子盘质量和最大旋转速度与 Mbar (B-V) ≈ 60V4rot.max 公式的拟合效果最好,但在 Mbar (B-V) ~ 60 V5rot.max 的晚期类型旋涡星系中,这种关系似乎更强。 只要把可观测到的恒星和氢原子气体考虑在内,一些科学事实就会表明,在晚期螺旋星系中很可能存在额外的超大质量重子贮存。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Kinematic Properties of the Gaseous Stellar Dynamics Using the Tully-Fisher Relation in the Different Types of Spiral Galaxies
     The goal of this paper is to show the kinematic characteristics of gaseous stellar dynamics using scaling coefficient relationships (such as Tully-Fisher) in different spiral galaxies. We selected a sample of types of spiral morphology  (116 early, 150 intermediate, and 146 late) from previous literature work, and used statistical software (statistic-win-program) to find out the associations of multiple factors under investigation, such as the main kinematic properties of the gaseous-stellar (mass, luminosity, rotational speed, and baryons) in different types of spiral galaxies. We concluded that there is a robust positive connection between Log Vrot.max.) and Log Mstar(B-V), as well as between Log Vrot.max. and Log Mbar (B-V)  in  three types of spiral galaxies (early, intermediate, and late), with a sharply negative relationship found between  and Log MB in addition to the relationship between Log Mbar (B-V)  and Log MB, with the partial correlation coefficient (R ≈ - 0.85) in all the different types of spiral galaxies. Our results indicated that for early and intermediate kinds of spiral galaxies, the baryonic disk mass and the maximum rotational speed fit best with the formula Mbar (B-V) ≈ 60V4rot.max., but this relationship seems to be stronger in late-type spiral galaxies with Mbar (B-V) ~ 60 V5rot.max .  Whenever the observable stars and atomic hydrogen gas were taken into account, several scientific facts show that additional extremely massive baryon stores are virtually probably present in late spiral galaxies.
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来源期刊
Iraqi Journal of Science
Iraqi Journal of Science Chemistry-Chemistry (all)
CiteScore
1.50
自引率
0.00%
发文量
241
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