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Gravity Binding and Pressure Bounding of Hii regions and Molecular Clouds in Interacting Galaxies

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

J. Zaragoza-Cardiel ,
J. Beckman ,
J. Font ,
A. Camps-Fariña ,
B. Garcìa-Lorenzo  and
A. Serrano-Borlaff
J. Zaragoza-Cardiel
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico email: javier.zaragoza@astro.unam.mx
J. Beckman
Affiliation:
Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, 38205 La Laguna, Tenerife, Spain Department of Astrophysics, University of La Laguna, E-38200 La Laguna, Tenerife, Spain CSIC, 28006 Madrid, Spain
J. Font
Affiliation:
Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, 38205 La Laguna, Tenerife, Spain Department of Astrophysics, University of La Laguna, E-38200 La Laguna, Tenerife, Spain
A. Camps-Fariña
Affiliation:
Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, 38205 La Laguna, Tenerife, Spain Department of Astrophysics, University of La Laguna, E-38200 La Laguna, Tenerife, Spain
B. Garcìa-Lorenzo
Affiliation:
Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, 38205 La Laguna, Tenerife, Spain Department of Astrophysics, University of La Laguna, E-38200 La Laguna, Tenerife, Spain
A. Serrano-Borlaff
Affiliation:
Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, 38205 La Laguna, Tenerife, Spain Department of Astrophysics, University of La Laguna, E-38200 La Laguna, Tenerife, Spain
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Abstract

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We have observed 3 pairs of interacting galaxies (the Antennae, Arp 236, and NGC 1614) using the Fabry-Perot interferometer GHαFaS (Galaxy Hα Fabry-Perot system) on the 4.2m William Herschel Telescope (WHT) at the Observatorio del Roque de los Muchachos, La Palma. We have extracted the physical properties (sizes, Hα luminosity and velocity dispersion) of Hii regions. We have combined also these observations with ALMA archival observations of these interacting galaxies, finding that there is a set of brighter and denser star forming regions. We have been able to compare these properties with those of two SMGs at redshift ~ 2.

Keywords

Interacting galaxiesstar formationHii regionsGMCs
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E84
Copyright
Copyright © International Astronomical Union 2016 

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