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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/42317
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- Deep searches for high redshift molecular absorption
- Curran, Stephen J.; Webb, J. K.; Murphy, Michael T.; Kuno, N.
- Millimetre-band scans of the frequency space towards optically dim quasars is potentially a highly efficient method for detecting new high redshift molecular absorption systems. Here we describe scans towards 7 quasars over wide bandwidths (up to 23 GHz) with sensitivity limits sufficient to detect the 4 redshifted absorbers already known. With wider frequency bands, highly efficient searches of large numbers of possibly obscured objects will yield many new molecular absorbers.
- Publication type
- Conference paper
- Highlights of astronomy: Proceedings of the 25th General Assembly of the IAU, Sydney, New South Wales, Australia, 13-26 July 2003 / Oddbjorn Engvold (ed.), Vol. 13, pp. 845-847
- Publication year
- Constraints; Evolution; Fine-structure constant; Lines; Millimeter-loud; Physical constants; Quasars
- Astronomical Society of the Pacific
- Publisher URL
- Copyright © 2005 Astronomical Society of the Pacific. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher.
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- Peer reviewed