MaNGA sample of galaxies Virtual Observatory Resource

Authors
  1. Fraser-McKelvie A.
  2. Cortese L.
  3. Published by
    CDS
Abstract

It is generally assumed that galaxies are a bimodal population in both star formation and structure; star-forming galaxies are disks, while passive galaxies host large bulges or are entirely spheroidal. Here we test this scenario by presenting a full census of the kinematic morphologies of a volume-limited sample of galaxies in the local universe extracted from the MaNGA galaxy survey. We measure the integrated stellar line-of-sight velocity to velocity dispersion ratio (V/sigma) for 4574 galaxies in the stellar mass range 9.75<logM*[M_{sun}]<11.75. We show that at fixed stellar mass, the distribution of V/sigma is not bimodal, and that a simple separation between fast and slow rotators is oversimplistic. Fast rotators are a mixture of at least two populations, referred to here as dynamically cold disks and intermediate systems, with disks dominating in both total stellar mass and number. When considering star-forming and passive galaxies separately, the star-forming population is almost entirely made up of disks, while the passive population is mixed, implying an array of quenching mechanisms. Passive disks represent ~30% (both in number and mass) of passive galaxies, nearly a factor of two higher than that of slow rotators, reiterating that these are an important population for understanding galaxy quenching. These results paint a picture of a local universe dominated by disky galaxies, most of which become somewhat less rotation-supported upon or after quenching. While spheroids are present to a degree, they are certainly not the evolutionary end point for the majority of galaxies.

Keywords
  1. galaxies
  2. galaxy-classification-systems
Bibliographic source Bibcode
2022ApJ...937..117F
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/937/117
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/937/117
Document Object Identifer DOI
doi:10.26093/cds/vizier.19370117

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/937/117
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/937/117
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/937/117
IVOA Table Access TAP
https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/937/117/sample?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/937/117/sample?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/937/117/sample?

History

2023-03-27T11:11:47Z
Resource record created
2023-03-27T11:11:47Z
Created
2023-10-16T11:51:19Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr