The hot gas exhaust of starburst engines in mergers Virtual Observatory Resource

Authors
  1. Smith B.J.
  2. Wagstaff P.
  3. Struck C.
  4. Soria R.
  5. Dunn B.
  6. Swartz D.,Giroux M.L.
  7. Published by
    CDS
Abstract

Using archival data from the Chandra X-ray telescope, we have measured the spatial extent of the hot interstellar gas in a sample of 49 nearby interacting galaxy pairs, mergers, and merger remnants. For systems with SFR>1 M_{sun}_/yr, the volume and mass of hot gas are strongly and linearly correlated with the star formation rate (SFR). This supports the idea that stellar/supernovae feedback dominates the production of hot gas in these galaxies. We compared the mass of X-ray-emitting hot gas M_X_(gas) with the molecular and atomic hydrogen interstellar gas masses in these galaxies (M_H2_ and M_HI_, respectively), using published carbon monoxide and 21 cm H I measurements. Systems with higher SFRs have larger M_X_(gas)/(M_H2_ + M_HI_) ratios on average, in agreement with recent numerical simulations of star formation and feedback in merging galaxies. The M_X_(gas)/(M_H2_ + M_HI_) ratio also increases with dust temperature on average. The ratio M_X_(gas)/SFR is anticorrelated with the Infrared Astronomical Satellite 60-100 {mu}m flux ratio and with the Spitzer 3.6-24 {mu}m color. These trends may be due to variations in the spatial density of young stars, the stellar age, the ratio of young to old stars, the initial mass function, and/or the efficiency of stellar feedback. Galaxies with low SFR (<1 M_{sun}_/yr) and high K band luminosities may have an excess of hot gas relative to the relation for higher SFR galaxies, while galaxies with low K band luminosities (and therefore low stellar masses) may have a deficiency in hot gas, but our sample is not large enough for strong statistical significance.

Keywords
  1. Galaxies
  2. X-ray sources
  3. Interstellar medium
Bibliographic source Bibcode
2019AJ....158..169S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/158/169
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/158/169
Document Object Identifer DOI
doi:10.26093/cds/vizier.51580169

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/158/169
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/158/169
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/158/169
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/158/169/galaxies?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/158/169/galaxies?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/158/169/galaxies?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/158/169/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/158/169/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/158/169/table3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/158/169/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/158/169/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/158/169/table4?

History

2019-12-03T07:05:28Z
Resource record created
2019-12-03T06:25:11Z
Updated
2019-12-03T07:05:28Z
Created

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