As the result of an editorial oversight, the following two works were misattributed in the references:Schweizer, F. 1998, in Galaxies: Interactions and Induced Star Formation, ed. D. Friedli, L. Martinet, & D. Pfenniger (Berlin: Springer), 105Sparke, L. S. 1996, ApJ, 473, 810The publisher regrets the error.

On Nov 19, 2001, The Chandra X-ray Observatory surveyed M31 with 5 overlapping very short (1ks) HRC exposures and a single short (5ks) ACIS-S exposure. Preliminary analysis allows us to report the following concerning possible X-ray transients within M31. A new source CXOU J004428.4+415628 (RA=00:44:28.4, DEC=+41:56:28.1, J2000), near the NE spiral

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We present an atlas of position-velocity (PV) diagrams of ionized gas in the inner regions of 23 disk galaxies. The gas kinematics have been obtained from ground-based long-slit spectra along the major axis. We discuss the variety of shapes of the emission lines in the PV diagrams that we find for the sample galaxies. To discuss the different

We present the results from an X-ray and optical survey of a sample of radio jets in AGN with Chandra and HST. We focus on the first six sources observed at X-rays, in four of which a bright X-ray jet was detected for the first time. In three out of four cases optical emission from the jet is also detected in the HST images. We compare the X-ray

We have obtained intermediate resolution optical spectra of the black-hole candidate Nova Sco 1994 in June 1996, when the source was in an X-ray/optical active state (R~15.05). We measure the radial velocity curve of the secondary star and obtain a semi-amplitude of 279+/-10 km s-1 a value which is 30 per cent larger than the value obtained when