Preliminary Exploration of Areal Density of Angular Momentum for Spiral Galaxies

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.

7 pages, 2 figures

References in corpus (8)

• Mega parsec relativistic jets launched from an accreting supermassive blackhole in an extreme spiral galaxy
• LeMMINGs. II. The e-MERLIN legacy survey of nearby galaxies. The deepest radio view of the Palomar sample on parsec scale
• A universal relation between the properties of supermassive black holes, galaxies, and dark matter halos
• BAT AGN Spectroscopic Survey -- XVII: The Parsec-scale Jet Properties of the Ultra Hard X-ray Selected Local AGN
• Tracing the Milky Way's Vestigial Nuclear Jet
• Exploring the hot gaseous halo around an extremely massive and relativistic jet launching spiral galaxy with XMM-Newton
• Mass content of UGC 6446 and UGC 7524 through HI rotation curves: deriving the stellar discs from stellar population synthesis models
• Spin transfer from dark matter to gas during halo formation