The second detection of CO at redshift larger than 4

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dc.creatorGuilloteau, Stephane
dc.creatorOmont, Alain
dc.creatorMcMahon, Richard G.
dc.creatorCox, Pierre
dc.creatorPetitjean, Patrick
dc.date1997-11-09
dc.date.accessioned2026-07-07T02:24:58Z
dc.date.available2026-07-07T02:24:58Z
dc.descriptionWe report the detection with the IRAM interferometer at 3mm of J=5-4 CO line in the radio quiet quasar BRI1335-0415 at redshift of z=4.41. After BR1202-0725 at z=4.69 (Ohta etal 1996, Omont etal 1996a), this is the second detection of CO at z>3. The integrated line intensity is 2.8+-0.3 Jy km s^{-1} with a linewidth of 420+-60 km s^{-1}. The dust continuum emission has also been mapped at 1.35mm. The 1.35mm flux is found to be 5.6+-1.1mJy. The ratio of the CO to 1.35mm continuum flux is slightly larger than for BR1202-0725. Contrary to the case of BR1202-0725, there is only marginal evidence of extension of the 1.35mm continuum and 3mm CO emission. In the absence of gravitational lensing, for which there is no a priori evidence, and within the uncertainties of the CO to M(H_2) conversion factors, the mass of molecular gas M(H_2) could be 10^{11} solar masses.
dc.description5 pages, 3 figures, LaTex (l-aa.sty, psfig.sty), also available at http://www.ast.cam.ac.uk/~rgm
dc.identifierhttps://arxiv.org/abs/astro-ph/9711082
dc.identifierhttp://arxiv.org/abs/astro-ph/9711082
dc.identifierAstronomy and Astrophysics, 328, L1-L4 (1997)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/11763
dc.subjectAstrophysics
dc.titleThe second detection of CO at redshift larger than 4
dc.typetext

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