THE CORRELATION OF OPTICAL ABNORMALITIES AND SMALL RADIO SOURCES IN GALAXY NUCLEI
| dc.contributor.author | Tifft, William G. | |
| dc.date.accessioned | 2018-04-03T22:59:05Z | |
| dc.date.available | 2018-04-03T22:59:05Z | |
| dc.date.issued | 1970-06 | |
| dc.identifier.citation | Astrophysical Letters 7: 7-9 (1970) | en |
| dc.identifier.uri | http://hdl.handle.net/10150/627202 | |
| dc.description.abstract | Radio emission from small sources in galaxy nuclei is shown to be correlated with the optical photometric properties. Within the limitations of the small sample available, the following observations are made: (1) no galaxy with a photometrically normal nuclear region contains a small radio source, although it may contain a large source; (2) when a small radio source is present the galaxy nuclei are abnormally red or blue. The opposite is not true, however, since (3) not all photometrically blue or red nuclei contain small radio sources. Finally, (4+) the sources in red nuclei are apparently smaller than in blue nuclei and are the ones showing abnormal radio spectra. A close similarity between the abnormal nuclei and QSS phenomena is noted and it is proposed that the phenomena is either (1) a small scale QSS phenomena or (2) pre and /or post QSS stages. | |
| dc.language.iso | en_US | en |
| dc.publisher | Steward Observatory, The University of Arizona (Tucson, Arizona) | en |
| dc.relation.ispartofseries | Preprints of the Steward Observatory #0027 | en |
| dc.rights | Copyright © All Rights Reserved. | en |
| dc.source | Steward Observatory Parker Library SO QB 4 .S752 ARCH | en |
| dc.subject | Galactic nuclei | en |
| dc.subject | Radio sources | en |
| dc.subject | Photometry | en |
| dc.title | THE CORRELATION OF OPTICAL ABNORMALITIES AND SMALL RADIO SOURCES IN GALAXY NUCLEI | en_US |
| dc.type | text | en |
| dc.contributor.department | Univ Arizona, Steward Observ | en |
| dc.description.collectioninformation | This title from the Steward Observatory Preprints collection is made available by the Steward Observatory Parker Library and the University Libraries, The University of Arizona. If you have questions about titles in this collection, please contact Parker Library librarian Betty Fridena, bfridena@as.arizona.edu. | en |
| refterms.dateFOA | 2018-06-17T00:53:01Z | |
| html.description.abstract | Radio emission from small sources in galaxy nuclei is shown to be correlated with the optical photometric properties. Within the limitations of the small sample available, the following observations are made: (1) no galaxy with a photometrically normal nuclear region contains a small radio source, although it may contain a large source; (2) when a small radio source is present the galaxy nuclei are abnormally red or blue. The opposite is not true, however, since (3) not all photometrically blue or red nuclei contain small radio sources. Finally, (4+) the sources in red nuclei are apparently smaller than in blue nuclei and are the ones showing abnormal radio spectra. A close similarity between the abnormal nuclei and QSS phenomena is noted and it is proposed that the phenomena is either (1) a small scale QSS phenomena or (2) pre and /or post QSS stages. |
