National Astronomical Observatory, Mitaka, Tokyo, 181-8588 Japan; email: [email protected], [email protected], [email protected], [email protected] Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK; email: [email protected] Research School of Astronomy and Astrophysics, The Australian National University, Private Bag, Weston Creek Pos...

We review recent examples where the synergy between radio and X-ray observations has led to substantial progress in understanding astronomical systems. The sub-arcsecond imaging capabilities of the Chandra X-ray observatory provides a 100-fold improvement for comparing X-ray and radio structures. We specifically discuss examples which provide insight into the outflow of material and energy from...

Current and future astronomical surveys are producing catalogs with millions and billions of objects. On-line access to such big datasets for data mining and cross-correlation is usually as highly desired as unfeasible. Providing these capabilities is becoming critical for the Virtual Observatory framework. In this paper we present various performance tests that show how using Relational Databa...

5 Max-Planck-Institut [iir Extraterrestrische Physik, Giessenbachstrasse, D-8046, Garching bei Munchen, Germany "Astronomical Institute, National Observatory of Athens, PO Box 200048, GR-118 10, Athens, Greece 7 Institute for Astronomy, University of Edinburgh, Blackford Hil~ Edinburgh EH9 3HJ "Institute of Astronomy, The Observatories, Madingley Road, Cambridge CB30HA "Danish Space Research In...

Goldschmidt, P.; Oliver, S. J.; Serjeant, S. B. G.; Baker, A.; Eaton, N.; Efstathiou, A.; Gruppioni, C.; Mann, R. G.; Mobasher, B.; Rowan-Robinson, M.; Sumner, T. J.; Danese, L.; Elbaz, D.; Franceschini, A.; Egami, E.; Kontizas, M.; Lawrence, A.; McMahon, R.; Norgaard-Nielsen, H. U.; Perez-Fournon, I. and Gonzalez-Serrano, J. I. (1997). Observations of the Hubble Deep Field with the Infrared Sp...

P. R. Young, G. Del Zanna, H. E. Mason, K. P. Dere, E. Landi, M. Landini, G. A. Doschek, 1STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfor 2University College London, Department of Space and Climate Physics, 3DAMTP, Centre for Mathematical Sciences, 4George Mason University, 4400 University Dr., Fairfax 5Artep, Inc at Naval Research Laboratory, 4555 Overlook Ave. S.W., 6Dipartimento ...

ASTEROID FLYBY TARGET: 2867 STEINS. L.A. McFadden , E. Ammonito, E.A. Cloutis, A. Coradini, M.C. deSanctis,M. Fulchignoni, E. Hadamcik, T. Hiroi , L. Kolokolova, A.C. Levasseur-Regourd ,V. Psarev, J.-B. Renard. U. Maryland (Department of Astronomy, College Park, MD 20742-2421 [email protected]), IFSI-INAF Rome, U. Winnipeg (Department of Geography, Winnipeg, MB, Canada R3B 2E9, 4 Universit...

Leading spiral arms are a rare phenomenon. We present here one of the very few convincing candidates of spiral arms opening counter-intuitively in the same direction as the galaxy disk is rotating. This detection in a luminous IR galaxy (LIRG) IRAS 18293-3134 is based on near infrared (NIR) adaptive optics imaging with the Very Large Telescope and long-slit NIR spectroscopy with the AngloAustra...

The collapse of slowly rotating molecular cloud cores threaded by magnetic fields is investigated by high-resolution numerical simulation. Outflow formation in the collapsing cloud cores is also followed. In the models examined, the cloud core and parent cloud rotate rigidly and are initially threaded by a uniform magnetic field. The simulations show that the cloud core collapses along the magn...