S. Curran, J. Webb, M. Murphy, N. Wales., Australia., I. O. Astronomy, UK., N. Observatory, Japan.
{"title":"Deep Searches for High Redshift Molecular Absorption","authors":"S. Curran, J. Webb, M. Murphy, N. Wales., Australia., I. O. Astronomy, UK., N. Observatory, Japan.","doi":"10.1017/S1539299600017299","DOIUrl":null,"url":null,"abstract":"Millimetre-band scans of the frequency space towards optically dim quasars is potentially a highly efficient method for detecting new high red-shift 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.","PeriodicalId":422890,"journal":{"name":"Highlights of Astronomy","volume":"49 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Highlights of Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1017/S1539299600017299","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Millimetre-band scans of the frequency space towards optically dim quasars is potentially a highly efficient method for detecting new high red-shift 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.
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