Preliminary Exploration of Areal Density of Angular Momentum for Spiral Galaxies

被引：0
|
作者：
Zhang, Lan [1 ]
Wang, Feilu [1 ,2 ]
Xue, Xiangxiang [1 ,3 ]
Salzmann, David [1 ]
Shen, Baifei [4 ]
Zhong, Zehao [1 ]
Zhao, Gang [1 ,2 ]
机构：
[1] Chinese Acad Sci, CAS Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China
[2] Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 101408, Peoples R China
[3] Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China
[4] Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China
来源：
RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2023年 / 23卷 / 08期
基金：
中国国家自然科学基金;
关键词：
galaxies: jets; galaxies: spiral; galaxies: statistics; BLACK-HOLE; SCALING RELATIONS; RADIO LOUDNESS; JET; SEYFERT; MILKY; DISK;
D O I：
10.1088/1674-4527/acdfa7
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The specific angular momenta (j(t)) of stars, baryons as a whole and dark matter halos contain clues of vital importance about how galaxies form and evolve. Using a sample of 70 spiral galaxies, we perform a preliminary analysis of j(t), and introduce a new quantity, e.g., areal density of angular momentum (ADAM) (j(t) M-?/(2R(d))(2)) as an indication for the existence of jet(s) in spiral galaxies. The percentage of spiral galaxies having jet(s) shows a strong correlation with ADAM, although the present sample is incomplete.
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页数：4
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