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The molecular gas c...
The molecular gas content of ULIRG type 2 quasars at z
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- Rodriguez, M. I. (författare)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Villar-Martin, M. (författare)
- Centro de Astrobiologia (CAB)
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- Emonts, B. (författare)
- Centro de Astrobiologia (CAB)
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- Humphrey, A. (författare)
- Universidade do Porto,University of Porto
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- Drouart, Guillaume, 1987 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Burillo, S. G. (författare)
- Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)
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- Perez-Torres, Miguel Angel (författare)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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(creator_code:org_t)
- 2014-04-25
- 2014
- Engelska.
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 565
- Relaterad länk:
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http://publications.... (primary) (free)
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https://www.aanda.or...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- We present new results of CO(1-0) spectroscopic observations of four Sloan Digital Sky Survey (SDSS) type 2 quasars (QSO2) at z similar to 0.3, observed with the 30-m IRAM radio telescope. The QSO2 have infrared luminosities in the ultra-luminous infrared galaxies (ULIRG) regime. We confirm the CO(1-0) detection in one of our four QSO2, SDSS J1543-00, with L-CO' and M-H2 (1.2 +/- 0.2) x 10(10) K km s(-1) pc(2) and (9.4 +/- 1.4) x 10(9) M-circle dot, respectively. The full width at half maximum (FWHM) of the CO(1-0) line is =575 +/- 102 km s(-1). No CO(1-0)) emission is detected in SDSS J0903+02, SDSS j1337-01, SDSS j1520-01 above 3 sigma, yielding upper limits on M(H-2) similar to 9.6, 4.3 and 5.1 x 10(9) M-circle dot, respectively. We expand previous studies of the molecular gas content of intermediate z QSO2 into the ULIRG regime. Taking into account nine QSO2 at z similar to 0.3-1.0 from the literature, we discuss the location of the 13 ULIRG QSO2 at z
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- quasars: emission lines
- galaxies: ISM
- quasars: general
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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