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  Cold Gas in High-z Galaxies: The Dense ISM

Decarli, R., Carilli, C., Casey, C., Emonts, B., Hodge, J., Kohno, K., et al. (2018). Cold Gas in High-z Galaxies: The Dense ISM.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-CE0C-7 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-CE0D-6
Genre: Proceedings

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https://ui.adsabs.harvard.edu/abs/2018ASPC..517..575D (Any fulltext)
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 Creators:
Decarli, R.1, Author
Carilli, C.1, Author
Casey, C.1, Author
Emonts, B.1, Author
Hodge, J.1, Author
Kohno, K.1, Author
Narayanan, D.1, Author
Riechers, D.1, Author
Sargent, M.1, Author
Walter, F.1, Author
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

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Free keywords: Astrophysics - Astrophysics of Galaxies Astrophysics - Cosmology and Nongalactic Astrophysics Astrophysics - Instrumentation and Methods for Astrophysics
 Abstract: The goal of this chapter is to study physical conditions of the interstellar medium (ISM) in distant galaxies. In particular, its densest component is associated with the inner cores of clouds - this is where star formation takes place. Carbon monoxide is usually used to trace molecular gas emission; however, its transitions are practically opaque, thus preventing astronomers from piercing through the clouds, into the deepest layers that are most intimately connected with the formation of stars. Other dense gas tracers are required, although they are typically too faint to be effectively observed in high redshift main sequence galaxies. The ngVLA will offer for the first time the sensitivity at radio frequencies that is needed to detect [CI]1-0 at z ≥ 5, as well as the ground transitions of dense gas tracers of the ISM such as HCN, HNC, HCO+ at z > 1, beyond the tip of the iceberg of the hyper-luminous sources that can be studied now. These new tools will critically contribute to our understanding of the intimate interplay between gas clouds and star formation in different environments and cosmic epochs.

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 Dates: 2018
 Publication Status: Issued
 Pages: 575
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: -
 Degree: -

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Title: Science with a Next Generation Very Large Array
Place of Event: -
Start-/End Date: 2018

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