Dark matter halo models for SPARC galaxies Virtual Observatory Resource

Authors
  1. Li P.
  2. Lelli F.
  3. McGaugh S.
  4. Schombert J.
  5. Published by
    CDS
Abstract

We present rotation curve fits to 175 late-type galaxies from the Spitzer Photometry and Accurate Rotation Curves database using seven dark matter (DM) halo profiles: pseudo-isothermal, Burkert, Navarro-Frenk-White (NFW), Einasto, Di Cintio+ (DC14; 2014MNRAS.441.2986D), cored-NFW, and a new semi-empirical profile named Lucky13. We marginalize over the stellar mass-to-light ratio, galaxy distance, disk inclination, halo concentration, and halo mass (and an additional shape parameter for Einasto) using a Markov Chain Monte Carlo method. We find that cored halo models, such as the DC14 and Burkert profiles, generally provide better fits to rotation curves than the cuspy NFW profile. The stellar mass-halo mass relation from abundance matching is recovered by all halo profiles once imposed as a Bayesian prior, whereas the halo mass-concentration relation is not reproduced in detail by any halo model.

Keywords
  1. Galaxy rotation
  2. Galaxy classification systems
  3. Astronomical models
Bibliographic source Bibcode
2020ApJS..247...31L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/247/31
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/247/31
Document Object Identifer DOI
doi:10.26093/cds/vizier.22470031

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/247/31
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/247/31
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/247/31
IVOA Table Access TAP
http://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).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/247/31/galaxies?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/247/31/galaxies?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/247/31/galaxies?

History

2020-07-02T09:34:43Z
Resource record created
2020-07-02T09:34:43Z
Created
2020-10-07T13:13:25Z
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