The connection between the activity of the quasar 3C 345 in the optical and radio ranges
For the quasar 3C 345, a cross-correlation analysis is carried out of the data on optical and radio variability over long (of the order of hundreds of days) time scales. A high degree of correlation is found between the radio outbursts and the ''slow'' component (the characterist...
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| Veröffentlicht in: | Astrophysics 1985-09, Vol.22 (2), p.148-153 |
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| creator | Babadzhanyants, M. K. Belokon', E. T. Gorokhov, V. L. |
| description | For the quasar 3C 345, a cross-correlation analysis is carried out of the data on optical and radio variability over long (of the order of hundreds of days) time scales. A high degree of correlation is found between the radio outbursts and the ''slow'' component (the characteristic time of variation being around 1 yr) in the optical brightness variations, the radio outbursts lagging behind by 7001000 days. A comparison of the magnitude of the lag with the apparent ''superluminal'' velocity of the radio components of the millisecond structure of 3C 345 enables to estimate the distance form the nucleus of the region in which the radio emission arises (/tau/ about 0''.7 x 10/sup -3/). |
| doi_str_mv | 10.1007/BF01005735 |
| format | Article |
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A comparison of the magnitude of the lag with the apparent ''superluminal'' velocity of the radio components of the millisecond structure of 3C 345 enables to estimate the distance form the nucleus of the region in which the radio emission arises (/tau/ about 0''.7 x 10/sup -3/).</description><identifier>ISSN: 0571-7132</identifier><identifier>EISSN: 1573-8191</identifier><identifier>DOI: 10.1007/BF01005735</identifier><language>eng</language><publisher>United States</publisher><subject>640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources ; BRIGHTNESS ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; CORRELATION FUNCTIONS ; COSMIC RADIO SOURCES ; COSMIC RAY FLUX ; COSMIC RAY PROPAGATION ; ELECTROMAGNETIC RADIATION ; FLUX DENSITY ; FUNCTIONS ; MATHEMATICS ; OPTICAL PROPERTIES ; PHYSICAL PROPERTIES ; PLASMA ; QUASARS ; RADIATION FLUX ; RADIATION TRANSPORT ; RADIATIONS ; RADIOWAVE RADIATION ; REGRESSION ANALYSIS ; RELATIVISTIC PLASMA ; STATISTICS ; VARIATIONS ; VELOCITY ; VISIBLE RADIATION</subject><ispartof>Astrophysics, 1985-09, Vol.22 (2), p.148-153</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c132t-5311c5b25472fdc8a2cec437a3ddb5039aa76dd78abfa93fd2e44a32be0ea1933</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/5717141$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Babadzhanyants, M. 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A comparison of the magnitude of the lag with the apparent ''superluminal'' velocity of the radio components of the millisecond structure of 3C 345 enables to estimate the distance form the nucleus of the region in which the radio emission arises (/tau/ about 0''.7 x 10/sup -3/).</description><subject>640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources</subject><subject>BRIGHTNESS</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>CORRELATION FUNCTIONS</subject><subject>COSMIC RADIO SOURCES</subject><subject>COSMIC RAY FLUX</subject><subject>COSMIC RAY PROPAGATION</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>FLUX DENSITY</subject><subject>FUNCTIONS</subject><subject>MATHEMATICS</subject><subject>OPTICAL PROPERTIES</subject><subject>PHYSICAL PROPERTIES</subject><subject>PLASMA</subject><subject>QUASARS</subject><subject>RADIATION FLUX</subject><subject>RADIATION TRANSPORT</subject><subject>RADIATIONS</subject><subject>RADIOWAVE RADIATION</subject><subject>REGRESSION ANALYSIS</subject><subject>RELATIVISTIC PLASMA</subject><subject>STATISTICS</subject><subject>VARIATIONS</subject><subject>VELOCITY</subject><subject>VISIBLE RADIATION</subject><issn>0571-7132</issn><issn>1573-8191</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1985</creationdate><recordtype>article</recordtype><recordid>eNpFUMFKAzEQDaJgqb34BcGjsJrJbDa7Ry1WhYKXCt6W2SRrI3VTN1Hp3xttwTnMYx6P4b3H2DmIKxBCX98uREalUR2xCWQsamjgmE0yB4UGlKdsFuObyFPJqlJqwl5Wa8dNGAZnkg8D71z6dm7gKdOUqS-fdjz0f_fHJ0UaOc45lor7vShskze04TRYPpL1Ie_h1cUzdtLTJrrZAafseXG3mj8Uy6f7x_nNsjDZTyoUAhjVSVVq2VtTkzTOlKgJre2UwIZIV9bqmrqeGuytdGVJKDsnHEGDOGUX-78hJt9G45Mz60OgNufWUEIWXe5FZgwxjq5vt6N_p3HXgmh_u2v_u8MfbpRfxg</recordid><startdate>19850901</startdate><enddate>19850901</enddate><creator>Babadzhanyants, M. 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K.</creatorcontrib><creatorcontrib>Belokon', E. T.</creatorcontrib><creatorcontrib>Gorokhov, V. L.</creatorcontrib><creatorcontrib>Leningrad State University, Leningrad</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Astrophysics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Babadzhanyants, M. K.</au><au>Belokon', E. T.</au><au>Gorokhov, V. L.</au><aucorp>Leningrad State University, Leningrad</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The connection between the activity of the quasar 3C 345 in the optical and radio ranges</atitle><jtitle>Astrophysics</jtitle><date>1985-09-01</date><risdate>1985</risdate><volume>22</volume><issue>2</issue><spage>148</spage><epage>153</epage><pages>148-153</pages><issn>0571-7132</issn><eissn>1573-8191</eissn><abstract>For the quasar 3C 345, a cross-correlation analysis is carried out of the data on optical and radio variability over long (of the order of hundreds of days) time scales. A high degree of correlation is found between the radio outbursts and the ''slow'' component (the characteristic time of variation being around 1 yr) in the optical brightness variations, the radio outbursts lagging behind by 7001000 days. A comparison of the magnitude of the lag with the apparent ''superluminal'' velocity of the radio components of the millisecond structure of 3C 345 enables to estimate the distance form the nucleus of the region in which the radio emission arises (/tau/ about 0''.7 x 10/sup -3/).</abstract><cop>United States</cop><doi>10.1007/BF01005735</doi><tpages>6</tpages></addata></record> |
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| ispartof | Astrophysics, 1985-09, Vol.22 (2), p.148-153 |
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| language | eng |
| recordid | cdi_crossref_primary_10_1007_BF01005735 |
| source | SpringerLink Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | 640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources BRIGHTNESS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CORRELATION FUNCTIONS COSMIC RADIO SOURCES COSMIC RAY FLUX COSMIC RAY PROPAGATION ELECTROMAGNETIC RADIATION FLUX DENSITY FUNCTIONS MATHEMATICS OPTICAL PROPERTIES PHYSICAL PROPERTIES PLASMA QUASARS RADIATION FLUX RADIATION TRANSPORT RADIATIONS RADIOWAVE RADIATION REGRESSION ANALYSIS RELATIVISTIC PLASMA STATISTICS VARIATIONS VELOCITY VISIBLE RADIATION |
| title | The connection between the activity of the quasar 3C 345 in the optical and radio ranges |
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