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Molecules in Action: Extragalactic ISM at high resolution

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

Published online by Cambridge University Press:  12 September 2016

Sergio Martín
Sergio Martín*
Affiliation:
European Southern Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile email: [email protected] Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile
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Abstract

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During the last two decade, observations have shown the potential of molecular tracers to get insights into the physical processes taking place in the central regions of active galaxies. However, observations were severely limited by both sensitivity and resolution. This resulted also in a limited sample of bright enough galaxies where molecular species other than carbon monoxide could be observed. Current instruments like ALMA and the upcoming NOEMA are already changing our view of the extragalactic ISM molecular observations. In fact, it is now possible to study the physical properties of individual spatially resolved star forming GMCs in external galaxies, as well as resolving the physical structure of the ISM in the surroundings of AGNs at scales of a few parsecs. Here I quickly review some of the most recent observational studies in the nuclear regions of galaxies which are setting new standards in the ways we can study the extragalactic ISM properties.

Keywords

ISM: abundancesISM: moleculesgalaxies: abundancesgalaxies: activegalaxies: ISMgalaxies: seyfertgalaxies: starburst
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , pp. 42 - 48
Copyright
Copyright © International Astronomical Union 2016 

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