... DEFINITIONS: epoch : J2000. calcode: M for the Jodrell Bank MERLIN. source : Name derived from the J2000 position. ra : Right ascension of the source at epoch J2000. dec : Declination of the source at epoch J2000. rem : Remark giving a code for the published reference plus the total source flux density at 8.4 GHz quoted in that reference. ... The catalog of 2118 compact radio sources is available via anonymous ftp from host ftp.aoc.nrao.edu; cd to directory /pub and get file sources.jvas. ...

... High-velocity clouds (HVCs) were discovered by Muller, Oort & Raimond (1963) in the 21-cm line emission of neutral, atomic hydrogen. They are gas clouds which are characterised by high radial velocities incompatible with a participation in the rotation of our Galaxy. ... This suggestion was seized by Braun & Burton (1999) who identified 66 compact high-velocity clouds (CHVCs) with positional and kinematic characteristics being compatible with a distribution across the entire Local Group. ...

Top] [Prev] [Next] [Bottom] . The most efficient strategy for removing the background from a science exposure strongly depends on the nature of the target and of the science to be accomplished. ... For compact objects, such as point sources, background subtraction can be achieved by moving the target across the camera field of view (see Figure 10.1 ). ... In this case, offsets to an adjacent field (chopping), chosen to be at least one camera field away in an arbitrary direction, are necessary. ...

Time has come for me to move to a new longitude, but not before following the tradition and updating you on the work I have been doing in the latest stages of my PhD (and beyond). ... This presentation would of course not be complete without a final attempt at convincing you of the potential of some excitingly new technology to publish multi-dimensional datasets in 3-D. Hence, I shall also tell you about the newly developed X3D pathway Chris Owen and I have been developing lately. ...

The FR Divide in Radio Galaxies through Environmental Interactions T. Maciel (Astrophysics Group) tm419@cam.ac.uk , P. Alexander (Astrophysics Group) Radio -Loud Galaxies · Galaxies which are dominated by their radio emission (10MHz -100GHz) and show extended morphology: - Jets Active Galactic Nuclei -Lobes powered by (AGN) -Hotspots -Central black hole -Accretion disc -Strong B fields -Dusty torus Chandra X-Ray image of Perseus cluster with VLA ... Right: FRII galaxy 3C175 at 5GHz. ...

Proposal Identi cation No.: A1065 Date Received: 1997-Dec- 3 16:36:01 Technical Page Proposal Type: Regular General Category : Astronomy Sub- Category : Spectroscopy Observation Category : Extragalactic Total Time Requested: 21 Hours Proposal Title: Virgo Cluster Blue Compact Dwarf Galaxies { A Search for Extended HI and HI Cloud Companions ABSTRACT: Blue compact dwarf galaxies in the Virgo ... Maybe Part of the observing run. ...