A Molecular Gas of z<0.2 Infrared-Excess, Optical QSOs

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dc.creatorEvans, A. S.
dc.creatorFrayer, D. T.
dc.creatorSurace, J. A.
dc.creatorSanders, D. B.
dc.date2001-03-13
dc.date.accessioned2026-07-07T01:57:57Z
dc.date.available2026-07-07T01:57:57Z
dc.descriptionMillimeter-wave (CO) observations of optically-selected QSOs are potentially a powerful tool for studying the properties of both the QSOs and their host galaxies. We summarize here a recent molecular gas survey of z<0.17 optical QSOs with infrared (IR) excess, L_IR (8-1000 um) / L_bbb (0.1-1.0 um) > 0.36. Eight of these QSOs have been detected to date in CO(1-0), and the derived molecular gas masses are in the range 1.7-35x10^9 M_sun. The high L_IR / L'_CO of QSOs relative to the bulk of the local (z<0.2) IR luminous galaxy merger population is indicative of significant heating of dust (L_IR) by the QSO nucleus and/or by massive stars created in the host galaxy with high efficiency (i.e., per unit molecular gas, L'_CO).
dc.descriptionLaTex, 6 pages, including 1 postscript table and 2 postscript figures,in "QSO Hosts and Their Environments", ed. I. Marquez, in press
dc.identifierhttps://arxiv.org/abs/astro-ph/0103197
dc.identifierhttp://arxiv.org/abs/astro-ph/0103197
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/2586
dc.subjectAstrophysics
dc.titleA Molecular Gas of z<0.2 Infrared-Excess, Optical QSOs
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