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Chemical abundances in AGN : X-ray/UV campaign on Mrk 279 .

Arav, Nahum

We present the first reliable chemical abundances determination in an AGN outflow. The abundances are extracted from the deep and simultaneous FUSE and HST/STIS observations of Mrk 279. This data-set is exceptional for it's high signal-to-noise, unblended doublet troughs and little galactic absorption contamination. These attributes allow us to so…

The accretion/ejection paradigm of low mass stars tested with HST

Ray, T. P.; Eislöffel, J.; Bacciotti, F. +2 more

In the last few years new investigation techniques have allowed us to study in depth the spectacular phenomenon of protostellar jets, and to test the validity of the proposed models for their acceleration. In this contribution we review the current knowledge on the subject, with a special emphasis on the recent achievements obtained thanks to obse…

Infrared Astronomy with the Hubble Space Telescope and the Next Generation Space Telescope

Robberto, M.

I review the characteristics of NICMOS before and after the installation of the new cooling system. Recent results on high-redshift supernovae and star formation in the Large Magellanic Cloud are used to illustrate the NICMOS performance. I present the IR channel of WFC3, a fourth generation instrument to be installed on the Hubble Space Telescope…

Hot massive stars in Local Group galaxies.

Bianchi, L.; Scuderi, S.

Ultraviolet observations of stellar coronae : early results from HST.

Linsky, Jeffrey L.

The first GHRS spectra of two very different late-type giant stars - Capella and Gamma Dra are reported. Capella is a 104 day period binary system consisting of two stars (G9 III and GO III) each of which shows bright emission lines formed in solar-like transition region and coronae. By contrast, Gamma Dra is a hybrid-chromosphere star with very w…