UVIT photometry of M31 PHAT stellar clusters Virtual Observatory Resource

Authors
  1. Leahy D.
  2. Buick M.
  3. Leahy C.
  4. Published by
    CDS
Abstract

The Andromeda galaxy (M31) is an object of ongoing study with the Ultraviolet Imaging Telescope (UVIT) on AstroSat. UVIT far-UV (FUV) and near-UV (NUV) photometry is carried out here for a set of 239 clusters in the NE disk and bulge of M31 that overlap with the HST/PHAT survey. Padova stellar models were applied to derive ages, masses, metallicities, and extinctions for 170 clusters. The ages show a narrow peak at ~4Myr and a broad peak around 100Myr. log(Z/Z{sun}) values are mostly between -0.3 and +0.3. The 7 clusters in the bulge have a low metallicity and high mass. Most clusters are in the spiral arms and have metallicities in the range noted above. The youngest clusters mostly have high metallicity and are concentrated along the brightest parts of the spiral arms. The UVIT FUV and NUV data are sensitive to young stars and detect a new metal-rich peak in star formation in the disk at age ~4Myr.

Keywords
  1. star-forming-regions
  2. photometry
  3. ultraviolet-astronomy
  4. stellar-ages
  5. stellar-masses
Bibliographic source Bibcode
2022AJ....164..183L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/164/183
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/164/183
Document Object Identifer DOI
doi:10.26093/cds/vizier.51640183

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/164/183
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/164/183
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/164/183
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/AJ/164/183/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/164/183/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/164/183/table1?

History

2022-12-13T08:23:17Z
Resource record created
2022-12-13T08:23:17Z
Created
2023-01-16T09:12:34Z
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