Rapid increase in the size of 3C 345

Rapid increase in the size of 3C 345

The brightness distribution of the quasar 3C 345 at lambda=2.8 cm is accurately modeled with two Gaussian elliptical components. Observations at four epochs between 1974.15 and 1975.68 show that the separation of the components increased from 1.23 to about 1.61 milli-arcsec, at a rate 0.2 milli-arcs...

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Veröffentlicht in:Astrophys. J., Lett.; (United States) Lett.; (United States), 1976-05, Vol.206, p.L1
Hauptverfasser: Cohen, M. H., Moffet, A. T., Romney, J. D., Schilizzi, R. T., Seielstad, G. A., Kellermann, K. I., Purcell, G. H., Shaffer, D. B., Pauliny-Toth, I. I. K., Preuss, E.
Format: Artikel
Sprache:eng
Schlagworte:
640103 - Astrophysics & Cosmology- Quasi-Stellar, Radio, & X-Ray Sources- (-1987)
BRIGHTNESS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FIELD THEORIES
GENERAL RELATIVITY THEORY
INTERFEROMETRY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
QUASARS
RADIATIONS
RADIOWAVE RADIATION
RELATIVITY THEORY
VARIATIONS
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Zusammenfassung:The brightness distribution of the quasar 3C 345 at lambda=2.8 cm is accurately modeled with two Gaussian elliptical components. Observations at four epochs between 1974.15 and 1975.68 show that the separation of the components increased from 1.23 to about 1.61 milli-arcsec, at a rate 0.2 milli-arcsec per year. The apparent transverse velocity is vapprox. =8c, if one assumes a cosmological interpretation of the redshift. (AIP)
ISSN:0004-637X
1538-4357
DOI:10.1086/182119