A Sample of Edge-on H i-rich Low Surface Brightness Galaxy Candidates in the 40% ALFALFA Catalog

A Sample of Edge-on H i-rich Low Surface Brightness Galaxy Candidates in the 40% ALFALFA Catalog
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A%20Sample%20of%20Edge-on%20Hi-rich%20Low%20Surface%20Brightness%20Galaxy%20Candidates%20in%20the%2040%%20ALFALFA%20目录

DOI:
10.3847/1538-4365/ab8ead
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发表时间:
2020-04
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
通讯作者:
Bing-qing Zhang
Bing-qing Zhang
中科院分区:
其他
文献类型:
--
作者:
Min He;Hong Wu;Wei Du;He-yang Liu;Feng-jie Lei;Pin-song Zhao;Bing-qing Zhang

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低表面亮度星系(LSBG)被定义为比黑暗的夜空更暗的星系,对于研究我们的宇宙很重要。特别是,边缘星系对于研究星系的自转速度和动力学性质是非常有用的。因此,在这里,我们专注于寻找边缘上的LSBG。为了找到这些边缘昏暗的星系,倾斜引起的一系列影响,包括表面亮度轮廓,内部消光和尺度长度,已被纠正。在这项工作中,我们提供了281个边缘LSBG候选项的目录,这些候选项是从SDSS DR 7和40% ALFALFA目录之间的交叉匹配中选出的。我们还介绍了这些边缘LSBG候选者的属性,包括绝对星等,中心表面亮度,B-V颜色,尺度长度和相对厚度。我们的结果表明,倾斜效应的校正是非常重要的,以获得一个完整的样品的LSBG。
Low-surface-brightness galaxies(LSBGs) are defined as galaxies that are fainter than dark night sky and are important for studying our universe. Particularly, edge-on galaxies are useful for the study of rotational velocity and dynamical properties of galaxies. Hence here we focus on searching for edge-on LSBGs. In order to find these edge-on dim galaxies, a series of effects caused by inclination, including the surface brightness profile, internal extinction, and scale length, have been corrected. In this work, we present a catalog of 281 edge-on LSBG candidates, which are selected from the cross-match between SDSS DR7 and the 40% ALFALFA catalog. We also present the properties of these edge-on LSBG candidates including absolute magnitude, central surface brightness, B-V color, scale length, and relative thickness. Our result suggests that the correction of inclination effects is very important for obtaining a complete sample of LSBGs.
附近大质量早型星系的光度特性和光度函数
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