1. |
- Giuffrida, T.S., et al.
(författare)
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VLBI Studies of the W3OH Water Maser
- 1977
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Ingår i: Bulletin of the American Astronomical Society. - New York, NY : American Institute of Physics (AIP). - 0002-7537 .- 2330-9458. ; 9, s. 576-576
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Tidskriftsartikel (refereegranskat)
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2. |
- Bååth, L.B. 1948-, et al.
(författare)
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High Resolution Observations of the QSO 3C 345 at 1.3 centimeters
- 1981
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Ingår i: Astrophysical Journal. - Philadelphia, PA : Institute of Physics Publishing (IOPP). - 0004-637X .- 1538-4357. ; 243, s. L123-L126
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Tidskriftsartikel (refereegranskat)abstract
- High-resolution VLBI observations made at a frequency of 22.235 GHz of the quasar 3C 345 are discussed. Antennas located at the Crimean Astrophysical Observatory, USSR; Onsala, Sweden; Effelsberg, West Germany; and the Haystack Observatory, Massachusetts were employed at 4-min integration times to provide baselines ranging up to 5.5 x 10 to the 8th wavelengths. About 40% of the total flux density of 7.85 Jy, observed in November 1977, and 8.05 Jy, observed in October 1978, is found to originate in an unresolved component of the quasar core in a region less than 0.1 milliarcsec in diameter. The elongated jet-like component of the quasar is observed to contain several peaks of emission extending up to 6 milliarsec from the core which decreased in extent between the two observations.
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3. |
- Tang, G., et al.
(författare)
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Recent Evolution of Jet Components in 3C345 at 3.6 cm
- 1990
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Ingår i: Parsec-Scale radio jets. - Cambridge : Cambridge University Press. - 0521392268 ; , s. 32-37
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Bokkapitel (refereegranskat)abstract
- A series of 3.6 cm VLBI maps of 3C345 (1980.79 to 1988.38) is presented. The evolution of the jet components in this quasar is briefly discussed. Recent behavior of component C5 is described and the presence of a new component, tentatively labeled C6, is suggested.
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