A search for CO emission in cooling flows
The NRAO 12 m telescope was used to search for CO emission from the centers of two elliptical galaxies and four clusters of galaxies rich in 10 to the 7th-10 to the 8th K gas. No CO emission was detected, and the 3(delta) upper limits are 1-2 x 10 to the 8th solar masses for elliptical galaxies and...
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| Veröffentlicht in: | Astron. J.; (United States) 1988-08, Vol.96 (2), p.455-457 |
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| container_title | Astron. J.; (United States) |
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| creator | BREGMAN, J. N HOGG, D. E |
| description | The NRAO 12 m telescope was used to search for CO emission from the centers of two elliptical galaxies and four clusters of galaxies rich in 10 to the 7th-10 to the 8th K gas. No CO emission was detected, and the 3(delta) upper limits are 1-2 x 10 to the 8th solar masses for elliptical galaxies and 1-6 x 10 to the 10th solar masses for the clusters. The cooling-flow model for the evolution of the hot gas predicts the rate at which cool gas, and eventually stars, are produced. If this model is correct, measurements indicate that the ratio of the CO mass to the star-formation rate is at least a half order of magnitude less than in the Galaxy; star formation occurs rapidly and efficiently. (Author) |
| doi_str_mv | 10.1086/114822 |
| format | Article |
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Extragalactic objects and systems (by type)</subject><subject>OXIDES</subject><subject>OXYGEN COMPOUNDS</subject><subject>RADIATIONS 640105 -- Astrophysics & Cosmology-- Galaxies</subject><subject>STAR EVOLUTION</subject><subject>Stellar systems. Galactic and extragalactic objects and systems. The universe</subject><subject>X RADIATION</subject><issn>0004-6256</issn><issn>1538-3881</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1988</creationdate><recordtype>article</recordtype><recordid>eNpF0EtLAzEUBeAgCtaqv2EQEVyM3jwmySxL8QWFbnQd0tvERqaTmjtF_PdWWnR1Nh-Hw2HsksMdB6vvOVdWiCM24o20tbSWH7MRAKhai0afsjOiDwDOLagRu51UFHzBVRVzqabzKqwTUcp9lfoKc-5S_17FLn_ROTuJvqNwccgxe3t8eJ0-17P508t0MqtRGDHU3ugAzTKGuAClvcKwABOMACOwEYDGIMbWKNWKpReGL8WybaWUEBurhddyzK72vZmG5AjTEHCFue8DDk6bRorW7tDNHm1K_twGGtxuNoau833IW3KiAd5qo_4hlkxUQnSbkta-fDsO7vcut79rB68PjZ7Qd7H4HhP9acO55ILLH5OiZXY</recordid><startdate>19880801</startdate><enddate>19880801</enddate><creator>BREGMAN, J. 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E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c272t-a76e05dfefb046a4ceb07e72072c520c77ccf974492da271d2d993330f5862a63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1988</creationdate><topic>Astronomy</topic><topic>CARBON COMPOUNDS</topic><topic>CARBON MONOXIDE</topic><topic>CARBON OXIDES</topic><topic>CHALCOGENIDES</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>CONFIGURATION</topic><topic>COOLING</topic><topic>COSMIC GASES</topic><topic>Earth, ocean, space</topic><topic>ELECTROMAGNETIC RADIATION</topic><topic>ELEMENTS</topic><topic>ELLIPTICAL CONFIGURATION</topic><topic>Exact sciences and technology</topic><topic>FLUID FLOW</topic><topic>FLUIDS</topic><topic>GALAXIES</topic><topic>GALAXY CLUSTERS</topic><topic>GAS COOLING</topic><topic>GAS FLOW</topic><topic>GASES</topic><topic>HYDROGEN</topic><topic>IONIZING RADIATIONS</topic><topic>LIMITING VALUES</topic><topic>MASS</topic><topic>MATHEMATICAL MODELS</topic><topic>MILKY WAY</topic><topic>NONMETALS</topic><topic>Normal galaxies. Extragalactic objects and systems (by type)</topic><topic>OXIDES</topic><topic>OXYGEN COMPOUNDS</topic><topic>RADIATIONS 640105 -- Astrophysics & Cosmology-- Galaxies</topic><topic>STAR EVOLUTION</topic><topic>Stellar systems. Galactic and extragalactic objects and systems. The universe</topic><topic>X RADIATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>BREGMAN, J. N</creatorcontrib><creatorcontrib>HOGG, D. E</creatorcontrib><creatorcontrib>National Radio Astronomy Observatory, Charlottesville, VA (USA)</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Astron. J.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>BREGMAN, J. N</au><au>HOGG, D. E</au><aucorp>National Radio Astronomy Observatory, Charlottesville, VA (USA)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A search for CO emission in cooling flows</atitle><jtitle>Astron. J.; (United States)</jtitle><date>1988-08-01</date><risdate>1988</risdate><volume>96</volume><issue>2</issue><spage>455</spage><epage>457</epage><pages>455-457</pages><issn>0004-6256</issn><eissn>1538-3881</eissn><coden>ANJOAA</coden><abstract>The NRAO 12 m telescope was used to search for CO emission from the centers of two elliptical galaxies and four clusters of galaxies rich in 10 to the 7th-10 to the 8th K gas. No CO emission was detected, and the 3(delta) upper limits are 1-2 x 10 to the 8th solar masses for elliptical galaxies and 1-6 x 10 to the 10th solar masses for the clusters. The cooling-flow model for the evolution of the hot gas predicts the rate at which cool gas, and eventually stars, are produced. If this model is correct, measurements indicate that the ratio of the CO mass to the star-formation rate is at least a half order of magnitude less than in the Galaxy; star formation occurs rapidly and efficiently. (Author)</abstract><cop>Chicago, IL</cop><pub>University of Chicago Press</pub><doi>10.1086/114822</doi><tpages>3</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Astron. J.; (United States), 1988-08, Vol.96 (2), p.455-457 |
| issn | 0004-6256 1538-3881 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_25019674 |
| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Astronomy CARBON COMPOUNDS CARBON MONOXIDE CARBON OXIDES CHALCOGENIDES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CONFIGURATION COOLING COSMIC GASES Earth, ocean, space ELECTROMAGNETIC RADIATION ELEMENTS ELLIPTICAL CONFIGURATION Exact sciences and technology FLUID FLOW FLUIDS GALAXIES GALAXY CLUSTERS GAS COOLING GAS FLOW GASES HYDROGEN IONIZING RADIATIONS LIMITING VALUES MASS MATHEMATICAL MODELS MILKY WAY NONMETALS Normal galaxies. Extragalactic objects and systems (by type) OXIDES OXYGEN COMPOUNDS RADIATIONS 640105 -- Astrophysics & Cosmology-- Galaxies STAR EVOLUTION Stellar systems. Galactic and extragalactic objects and systems. The universe X RADIATION |
| title | A search for CO emission in cooling flows |
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