Radio cores in blazars

Details Radio cores in blazars Radio cores in blazars

2000-09-21

arxiv.org/abs/astro-ph/0009352v1

Astronomy and Astrophysics

Astrophysics

2 pages, 1 figures, Proceedings of the 5th EVN Symposium, Eds. John Conway, A. Polatidis, R. Booth, Chalmers Technical Univers

Scientific paper

We present results and first epoch parsec-scale images from a monitoring program on five $\gamma$--ray loud blazars selected on the basis of their total flux density variability. We observed 0048$-$097, 0235+164, 0954+658, 1510$-$089 and 1749+096 with the Very Long Baseline Array simultaneously at 8.4 GHz and 22 GHz. Comparison between our high quality images and previous results from the literature suggest that 0954+658 and 1510$-$089 are superluminal radio sources, with a Lorentz factor $\gamma$ of the order of $\sim 2 - 3$.

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