Vallini, L. (2015) Atomic and molecular far-infrared lines from high redshift galaxies. Il nuovo cimento C, 38 (2). pp. 1-8. ISSN 1826-9885
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Abstract
The advent of Atacama Large Millimeter-submillimeter Array (ALMA), with its unprecedented sensitivity, makes it possible the detection of farinfrared(FIR) metal cooling and molecular lines from the first galaxies that formed after the Big Bang. These lines represent a powerful tool to shed light on the physical properties of the interstellar medium (ISM) in high-redshift sources. In what follows we show the potential of a physically motivated theoretical approach that we developed to predict the ISM properties of high redshift galaxies. The model allows to infer, as a function of the metallicity, the luminosities of various FIR lines observable with ALMA. It is based on high resolution cosmological simulations of star-forming galaxies at the end of the Epoch of Reionization (z � 6), further implemented with sub-grid physics describing the cooling and the heating processes that take place in the neutral diffuse ISM. Finally we show how a different approach based on semi-analytical calculations can allow to predict the CO flux function at z > 6.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Primordial galaxies ; Atomic, molecular, chemical, and grain processes ; Molecular clouds |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 27 May 2020 15:24 |
| Last Modified: | 27 May 2020 15:24 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19007 |
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