VISIR, a Taste of Scientific Potential

Details VISIR, a Taste of Scientific Potential VISIR, a Taste of Scientific Potential

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005msngr.119...25p&link_type=abstract

The Messenger (ISSN0722-6691), No.119, p. 25-29 (March 2005)

Physics

10

Scientific paper

VISIR, the ESO-VLT instrument made for observations in the two mid-infrared atmospheric windows (the so-called N- and Q-bands), is now producing scientific results. Some first results are discussed from a pedagogic point of view, emphasising the various mechanisms at work that produce mid-infrared radiation (thermal dust emission, transiently heated dust emission, ion line emission, pure rotational line emission of molecular Hydrogen, synchrotron emission). The two key advantages of VISIR, i.e., its high angular resolution and its high spectral resolution, are illustrated respectively by the results from the observations of the brown dwarf binary system e Indi, and by kinematic studies of the galaxy NGC 7582.

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