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.

引用

页数：4

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