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26 April 2024 |
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CO(J=6-5) Observations of the Quasar SDSS1044-0125 at z = 5.8 | | I. Iwata
; K. Ohta
; K. Nakanishi
; K. Kohno
; R. G. McMahon
; | | Date: |
19 Jul 2001 | | Journal: | Publ.Astron.Soc.Jap. 53 (2001) 871 | | Subject: | astro-ph | | Affiliation: | Department of Astronomy, Faculty of Science, Kyoto University, Nobeyama Radio Observatory, National Astronomical Observatory of Japan, Institute of Astronomy, Cambridge | | Abstract: | We present a result of the quasar CO(J=6-5) observations of SDSSp J104433.04-012502.2 at z = 5.8. Ten-days observations with the Nobeyama Millimeter Array yielded an rms noise level of ~ 2.1 mJy/beam in a frequency range from 101.28 GHz to 101.99 GHz at a velocity resolution of 120 km/s. No significant clear emission line was detected in the observed field and frequency range. Three sigma upper limit on the CO(J=6-5) luminosity of the object is 2.8 x 10^10 K km/s pc^2, corresponding to a molecular gas mass of 1.2 x 10^11 Solar Mass, if a conversion factor of 4.5 Solar Mass /(K km/s pc^2) is adopted. The obtained upper limit on CO luminosity is slightly smaller than those observed in quasars at z=4-5 toward which CO emissions are detected. | | Source: | arXiv, astro-ph/0107369 | | Services: | Forum | Review | PDF | Favorites | |
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