IR observations of galaxies in the Coma cluster Virtual Observatory Resource

Authors
  1. Edwards L.O.V.
  2. Fadda D.
  3. Published by
    CDS
Abstract

We present a thorough study of the specific star formation rates (sSFRs) for MIPS 24um selected galaxies in the Coma cluster. We build galaxy spectral energy distributions using optical (u', g', r', i', z'), near-infrared (J, H, Ks), and mid- to far-infrared (Infrared Array Camera and MIPS) photometry. New and archival spectra confirm 210 cluster members. Subsequently, the total infrared luminosity, galaxy stellar mass, and sSFR for the members are determined by measuring best-fit templates. Using an array of complementary diagnostics, we search for any contaminating active galactic nuclei, but find few. We compare obscured SFRs to unobscured rates derived from extinction-corrected H{alpha} emission line measurements. The agreement between these two values leads us to conclude that there is no evidence for an additionally obscured component. In our spectroscopic sample, complete to 80% for r'<19.5, we find that all starbursts are blue and are dwarfs, having masses <10^9^M_{sun}_. Examining the location of these starbursts within the cluster, we confirm that there is a lower fraction in the cluster core.

Keywords
  1. Galaxies
  2. Infrared sources
  3. Galaxy clusters
  4. Optical astronomy
  5. Sloan photometry
  6. Infrared photometry
  7. Infrared astronomy
  8. Spectroscopy
Bibliographic source Bibcode
2011AJ....142..148E
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/142/148
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/142/148
Document Object Identifer DOI
doi:10.26093/cds/vizier.51420148

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/142/148
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/142/148
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/142/148
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/142/148/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/142/148/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/142/148/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/142/148/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/142/148/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/142/148/table3?

History

2013-06-13T10:39:03Z
Resource record created
2013-06-13T10:39:03Z
Created
2017-11-10T11:16:33Z
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