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Enabling the next generation of cm-wavelength studies of high-redshift molecular gas with the SKA

Wagg, Jeff and da Cunha, Elisabete and Carilli, Chris and Walter, Fabian and Aravena, Manuel and Heywood, Ian and Hodge, Jacqueline and Murphy, Eric and Riechers, Dominik and Sargent, Mark and Wang, Ran (2014) Enabling the next generation of cm-wavelength studies of high-redshift molecular gas with the SKA. In: Proceedings of Advancing Astrophysics with the Square Kilometre Array. , Art. No. 161.

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The Square Kilometre Array will be a revolutionary instrument for the study of gas in the distant Universe. SKA1 will have sufficient sensitivity to detect and image atomic 21 cm HI in individual galaxies at significant cosmological distances, complementing ongoing ALMA imaging of redshifted high-J CO line emission and far-infrared interstellar medium lines such as [CII] 157.7mm. At frequencies below ∼50 GHz, observations of redshifted emission from low-J transitions of CO, HCN, HCO^+, HNC, H_2O and CS provide insight into the kinematics and mass budget of the cold, dense star-forming gas in galaxies. In advance of ALMA band 1 deployment (35 to 52 GHz), the most sensitive facility for high-redshift studies of molecular gas operating below 50 GHz is the Karl G. Jansky Very Large Array (VLA). Here, we present an overview of the role that the SKA could play in molecular emission line studies during SKA1 and SKA2, with an emphasis on studies of the dense gas tracers directly probing regions of active star-formation.

Item Type:Book Section
Related URLs:
URLURL TypeDescription Paper
da Cunha, Elisabete0000-0001-9759-4797
Carilli, Chris0000-0001-6647-3861
Walter, Fabian0000-0003-4793-7880
Aravena, Manuel0000-0002-6290-3198
Hodge, Jacqueline0000-0001-6586-8845
Murphy, Eric0000-0001-7089-7325
Riechers, Dominik0000-0001-9585-1462
Sargent, Mark0000-0003-1033-9684
Wang, Ran0000-0003-4956-5742
Additional Information:© 2014 owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Record Number:CaltechAUTHORS:20150113-083052067
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53605
Deposited By: Tony Diaz
Deposited On:13 Jan 2015 21:18
Last Modified:06 Nov 2019 19:54

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