Lintott, C.;
Viti, S.;
(2006)
Rapid star formation in the presence of active galactic nuclei.
The Astrophysical Journal
, 646
(1)
L37-L39.
10.1086/506524.
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Abstract
Recent observations reveal galaxies in the early universe (2 < z < 6.4) with large reservoirs of molecular gas and extreme star formation rates. For a very large range of sources, a tight relationship exists between star formation rate and the luminosity of the HCN J = 1–0 spectral line, but sources at redshifts of z ∼ 2 and beyond do not follow this trend. The deficit in HCN is conventionally explained by an excess of infrared radiation due to active galactic nuclei (AGNs). We show in this Letter not only that the presence of AGNs cannot account for the excess of IR over molecular luminosity, but also that the observed abundance of HCN is in fact consistent with a population of stars forming from near-primordial gas.
| Type: | Article |
|---|---|
| Title: | Rapid star formation in the presence of active galactic nuclei |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1086/506524 |
| Publisher version: | http://dx.doi.org/10.1086/506524 |
| Language: | English |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10141 |
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