30 new Wolf-Rayet stars in M31 Virtual Observatory Resource

Authors
  1. Neugent K.F.
  2. Massey P.
  3. Published by
    CDS
Abstract

The evolved massive star populations of the Local Group galaxies are generally thought to be well understood. However, recent work has suggested that the Wolf-Rayet (WR) content of M31 may have been underestimated. We therefore began a pilot project to search for new WRs in M31 and to reexamine the completeness of our previous WR survey, finished almost a decade prior. Our improved imaging data and spectroscopic follow-up confirmed 19 new WRs across three small fields in M31. These newly discovered WRs are generally fainter than the previously known sample due to slightly increased reddening as opposed to intrinsic faintness. From these findings, we estimate that there are another ~60 WRs left to be discovered in M31; however, the overall ratio of WN-type (nitrogen-rich) to WC-type (carbon-rich) WRs remains unchanged with our latest additions to the M31 WR census. We are in the process of extending this pilot WR survey to include the rest of M31, and a more complete population will be detailed in our future work.

Keywords
  1. wolf-rayet-stars
  2. photometry
  3. stellar-spectral-types
Bibliographic source Bibcode
2023AJ....166...68N
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/166/68
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/166/68
Document Object Identifer DOI
doi:10.26093/cds/vizier.51660068

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/166/68
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/166/68
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/166/68
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/166/68/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/166/68/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/166/68/table2?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/166/68/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/166/68/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/166/68/table3?

History

2024-05-17T07:20:09Z
Resource record created
2024-05-17T07:20:09Z
Created
2024-09-19T20:13:26Z
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