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A search for molecules in damped Lyman-alpha absorbers occulting millimetre-loud quasars | S. J. Curran
; M. T. Murphy
; J. K. Webb
; F. Rantakyro
; L. E. B. Johansson
; S. Nikolic
; | Date: |
10 Sep 2002 | Journal: | Astron.Astrophys. 394 (2002) 763 | Subject: | astro-ph | Affiliation: | UNSW), M. T. Murphy (UNSW), J. K. Webb (UNSW), F. Rantakyro (ESO & U. Chile), L. E. B. Johansson (OSO) and S. Nikolic (OSO & AO, Serbia | Abstract: | We have used the SEST 15-metre and Onsala 20-metre telescopes to perform deep (r.m.s. >~ 30 mJy) integrations of various molecular rotational transitions towards damped Lyman-alpha absorption systems (DLAs) known to occult millimetre-loud quasars. We have observed 6 new systems and improved the existing limits for 11 transitions. These limits may be approaching the sensitivities required to detect new systems and we present a small number of candidate systems which we believe warrant further observation. | Source: | arXiv, astro-ph/0209175 | Services: | Forum | Review | PDF | Favorites |
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