The Spitzer Interacting Galaxies Survey (SIGS) Virtual Observatory Resource

Authors
  1. Brassington N.J.
  2. Zezas A.
  3. Ashby M.L.N.
  4. Lanz L.
  5. Smith H.A.,Willner S.P.
  6. Klein C.
  7. Published by
    CDS
Abstract

The Spitzer Interacting Galaxies Survey is a sample of 103 nearby galaxies in 48 systems, selected using association likelihoods and therefore free from disturbed morphology biases. All galaxies have been observed with Infrared Array Camera and MIPS 24{mu}m bands from the Spitzer Space Telescope. This catalog presents the global flux densities and colors of all systems and correlations between the interacting systems and their specific star formation rate (sSFR). This sample contains a wide variety of galaxy interactions with systems ranging in mass, mass ratios, and gas-content as well as interaction strength. This study seeks to identify the process of triggering star formation in galaxy interactions, therefore, we focus on the non-active galactic nucleus spiral galaxies only. From this subset of 70 spiral galaxies we have determined that this sample has enhanced sSFR compared to a sample of non-interacting field galaxies. Through optical data we have classified each system by "interaction strength"; the strongly interacting (Stage 4) galaxies have higher sSFR values than the weakly (Stage 2) and moderately (Stage 3) interacting systems. However, the Stage 2 and 3 systems have statistically identical sSFR properties, despite the lack of optical interaction signatures exhibited by the Stage 2 galaxies. We suggest that the similarity of sSFR in these stages could be a consequence of some of these Stage 2 systems actually being post-perigalactic and having had sufficient time for their tidal features to fade to undetectable levels. This interpretation is consistent with the correlation of sSFR with separation, which we have determined to have little variation up to 100kpc.

Keywords
  1. galaxies
  2. infrared-sources
  3. surveys
Bibliographic source Bibcode
2015ApJS..218....6B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/218/6
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/218/6
Document Object Identifer DOI
doi:10.26093/cds/vizier.22180006

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/218/6
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/218/6
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/218/6
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/ApJS/218/6/sigs?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/218/6/sigs?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/218/6/sigs?

History

2015-07-23T08:47:21Z
Resource record created
2015-07-23T08:47:21Z
Created
2017-06-13T11:08:31Z
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