3 papers
astro-ph2008★ 23 cited
Serendipitous VLBI detection of rapid, large-amplitude, intraday variability in QSO 1156+295
T. Savolainen, Y. Y. Kovalev
We report a serendipitous detection of rapid, large amplitude flux density variations in the highly core-dominated, flat-spectrum radio quasar 1156+295 during an observing session…
astro-ph2007★ 2 cited
Magnetic Field Structure in the Parsec Scale Jet of 3C273 from Multifrequency VLBA Observations
T. Savolainen, K. Wiik, E. Valtaoja +1
We present first results from a multifrequency VLBA observations of 3C273 in 2003. The source was observed simultaneously at 5.0, 8.4, 15.3, 22.2, 43.2 and 86.2 GHz, and from this…
astro-ph2004
An extremely curved relativistic jet in PKS 2136+141
T. Savolainen, K. Wiik, E. Valtaoja +1
We report the discovery of an extremely curved jet in the high frequency peaking GPS quasar PKS 2136+141. Our multi-frequency VLBA images show a bending jet making a turn-around of…