Scoville, Nick (2012) Evolution of ISM Contents of Massive Galaxies from z = 2 to 0.3. Proceedings of the International Astronomical Union (292). pp. 279-282. ISSN 1743-9213. doi:10.1017/S1743921313001361. https://resolver.caltech.edu/CaltechAUTHORS:20130409-133048337
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Abstract
The mass of ISM in high redshift Galaxies is a major determinant of their morphology, star formation activity and how they will evolve to low redshift. Measurement of the CO lines at z > 0.5 are time consuming, even with the sensitivity of ALMA, and the derived ISM masses are subject to uncertainty in the CO-to-H_2 conversion factor. Here I describe a much faster technique— measuring the long wavelength Rayleigh-Jeans dust emission using the spectacular continuum sensitivity of ALMA. Using a metallicity-dependent gas-to-dust abundance ratio derived from studies of low-z galaxies, one then obtains the ISM mass. Initial results from our ALMA Cycle-0 observations are presented for a small sample of stellar-mass selected galaxies in COSMOS. This technique will enable measurement of 100's of galaxies at high-z with observations of typically ∼10 min per galaxy.
Item Type: | Article | ||||||||||||
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Additional Information: | © 2013 International Astronomical Union. Published online: 21 March 2013. | ||||||||||||
Subject Keywords: | ISM: dust; ISM: molecules; ISM: evolution | ||||||||||||
Series Name: | Proceedings IAU Symposium | ||||||||||||
Issue or Number: | 292 | ||||||||||||
DOI: | 10.1017/S1743921313001361 | ||||||||||||
Record Number: | CaltechAUTHORS:20130409-133048337 | ||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130409-133048337 | ||||||||||||
Official Citation: | Nick Scoville (2012). Evolution of ISM Contents of Massive Galaxies from z = 2 to 0.3. Proceedings of the International Astronomical Union, 8, pp 279-282. doi:10.1017/S1743921313001361. | ||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
ID Code: | 37830 | ||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||
Deposited By: | Jason Perez | ||||||||||||
Deposited On: | 09 Apr 2013 21:30 | ||||||||||||
Last Modified: | 09 Nov 2021 23:31 |
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