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arXiv · 2308.10519

Preliminary Exploration of Areal Density of Angular Momentum for Spiral Galaxies

Lan Zhang·Feilu Wang·Xiangxiang Xue·David Salzmann·Baifei Shen·Zehao Zhong·Gang Zhao
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Abstract

The specific angular momenta ($j_t$) of stars, baryons as a whole and dark matter haloes 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) ($j_t~M_\star/4R_d^2$) as an indication for the existence of jet in spiral galaxies. The percentage of spiral galaxies having jet(s) shows strong correlation with the ADAM, although the present sample is incomplete.

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Lan Zhang, Feilu Wang, Xiangxiang Xue, David Salzmann, Baifei Shen, Zehao Zhong, Gang Zhao. 2023-08-21. Preliminary Exploration of Areal Density of Angular Momentum for Spiral Galaxies. https://doi.org/10.1088/1674-4527%2Facdfa7

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