CO luminosity function from Herschel-selected galaxies and the contribution of AGN
Date Issued
2016
Author(s)
Abstract
We derive the carbon monoxide (CO) luminosity function (LF) for different rotational transitions [I.e. (1-0), (3-2), (5-4)] starting from the Herschel LF by Gruppioni et al. and using appropriate LCO-LIR conversions for different galaxy classes. Our predicted LFs fit the data so far available at z ≈ 0 and 2. We compare our results with those obtained by semi-analytical models (SAMs): while we find a good agreement over the whole range of luminosities at z ≈ 0, at z ≈ 1 and z ≈ 2, the tension between our LFs and SAMs in the faint and bright ends increases. We finally discuss the contribution of luminous active galactic nucleus (LX > 1044 erg s- 1) to the bright end of the CO LF concluding that they are too rare to reproduce the actual CO LF at z ≈ 2.
Volume
456
Issue
1
Start page
L40
Issn Identifier
1745-3925
Ads BibCode
2016MNRAS.456L..40V
Rights
open.access
File(s)![Thumbnail Image]()
Loading...
Name
Vallini2016.pdf
Description
Pdf editoriale
Size
2.57 MB
Format
Adobe PDF
Checksum (MD5)
57a70b8fdcff294042a4a0e4f23e6c18