Stellar specific angular momentum & mass relation

DOI

We present the relation between stellar specific angular momentum j, stellar mass M, and bulge-to-total light ratio {beta} for The HI Nearby Galaxy Survey, the Calar Alto Legacy Integral Field Area Survey, and Romanowsky & Fall (2012ApJS..203...17R) data sets, exploring the existence of a fundamental plane between these parameters, as first suggested by Obreschkow & Glazebrook (2014ApJ...784...26O). Our best-fit M-j relation yields a slope of {alpha}=1.03+/-0.11 with a trivariate fit including {beta}. When ignoring the effect of {beta}, the exponent {alpha}=0.56+/-0.06 is consistent with {alpha}=2/3 that is predicted for dark matter halos. There is a linear {beta}-j/M relation for {beta}~0.4 have higher j than predicted by the relation. Pseudobulge galaxies have preferentially lower {beta} for a given j/M than galaxies that contain classical bulges. Pseudobulge galaxies follow a well- defined track in {beta}-j/M space, consistent with Obreschkow & Glazebrook, while galaxies with classical bulges do not. These results are consistent with the hypothesis that while growth in either bulge type is linked to a decrease in j/M*, the mechanisms that build pseudobulges seem to be less efficient at increasing bulge mass per decrease in specific angular momentum than those that build classical bulges.

Cone search capability for table J/ApJ/860/37/table1 (Properties of galaxies presented in this paper)

Identifier
DOI http://doi.org/10.26093/cds/vizier.18600037
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/860/37
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/860/37
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/860/37
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/860/37
Provenance
Creator Sweet S.M.; Fisher D.; Glazebrook K.; Obreschkow D.; Lagos C.; Wang L.
Publisher CDS
Publication Year 2019
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics