Search for dense molecular gas in QSO hosts

Details Search for dense molecular gas in QSO hosts Search for dense molecular gas in QSO hosts

2005-11-16

arxiv.org/abs/astro-ph/0511479v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, submitted to "QSO Hosts: Evolution and Environment", P.D. Barthel, D.B. Sanders, eds., August 2005, Leiden

Scientific paper

10.1016/j.newar.2006.06.017

We present the results of a recently conducted mm-experiment at the IRAM 30m telescope. We searched in two QSO hosts for the HCN(J=1-0) line emission tracing the dense regions of gas. Our goal is to probe the HCN-CO line ratio in QSO hosts for the first time and to compare the results with recent findings of quiescent galaxies. These findings indicate a strong correlation between the star formation efficiency and the HCN-CO line ratio over several orders of magnitudes in infrared luminosities.

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