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Star formation enhancement characteristics in interacting galaxies

  • J. Zaragoza-Cardiel (a1) (a2), J. E. Beckman (a1) (a2) (a3), J. Font (a1) (a2), A. Camps-Fariña (a1) (a2), B. García-Lorenzo (a1) (a2) and S. Erroz-Ferrer (a1) (a2)...

Abstract

We have observed 12 interacting galaxies using the Fabry-Perot interferometer GHαFaS (Galaxy Hα Fabry-Perot system) on the 4.2m William Herschel Telescope (La Palma). We have extracted the physical properties (sizes, Hα luminosity and velocity dispersion) of 236 HII regions for the full sample of interacting galaxies. We have derived the physical properties of 664 HII regions for a sample of 28 isolated galaxies observed with the same instrument in order to compare both populations of HII regions, finding that there are brighter and denser star forming regions in the interacting galaxies compared with the isolated galaxies sample.

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References

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Zaragoza-Cardiel, J., Font-Serra, J., Beckman, J. E., et al. 2013, MNRAS, 432, 998
Zaragoza-Cardiel, J., Font, J., Beckman, J. E., et al. 2014, arXiv:1409.1251
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Keywords

Star formation enhancement characteristics in interacting galaxies

  • J. Zaragoza-Cardiel (a1) (a2), J. E. Beckman (a1) (a2) (a3), J. Font (a1) (a2), A. Camps-Fariña (a1) (a2), B. García-Lorenzo (a1) (a2) and S. Erroz-Ferrer (a1) (a2)...

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