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
TL;DR
This study investigates the angular momentum distribution in spiral galaxies, introducing ADAM as a new indicator potentially linked to jet presence, based on analysis of 70 galaxies.
Contribution
It introduces the areal density of angular momentum (ADAM) as a novel metric and explores its correlation with jet occurrence in spiral galaxies.
Findings
Strong correlation between ADAM and presence of jets in spiral galaxies.
ADAM could serve as an indicator for jet activity in galaxies.
Preliminary results suggest a link between angular momentum distribution and galaxy evolution.
Abstract
The specific angular momenta () 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 , and introduce a new quantity, e.g., areal density of angular momentum (ADAM) () 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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