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astro-ph1999★ 45 cited
The HST Survey of BL Lac Objects: Gravitational Lens Candidates and Other Unusual Sources
R. Scarpa, C. M. Urry, R. Falomo +4
We present HST observations of seven unusual objects from the HST ``snapshot survey'' of BL Lac objects, of which four are gravitational lens candidates. In three cases a double po…
astro-ph1999★ 5 cited
BeppoSAX Observations of the Radio Galaxy Centaurus A
P. Grandi, C. M. Urry, L. Maraschi
We present preliminary results from two observations of the radio galaxy Centaurus A performed by the BeppoSAX satellite. We did not detect any spectral variation of the nuclear co…