Infrared spectroscopy and imaging of supernova remnants

Details Infrared spectroscopy and imaging of supernova remnants Infrared spectroscopy and imaging of supernova remnants

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.290..169g&link_type=abstract

In ESA, Infrared Spectroscopy in Astronomy p 169-175 (SEE N90-19084 11-89)

Astronomy and Astrophysics

Astronomy

3

Crab Nebula, Cygnus Constellation, Infrared Imagery, Infrared Spectroscopy, Stellar Spectrophotometry, Supernova Remnants, Emission Spectra, Hydrogen, Infrared Spectra, Line Spectra

Scientific paper

The infrared spectrophotometry and line images of the Crab nebula and Cygnus loop supernova remnants, are presented. In the Crab the filaments have a Fe(II) 1.644 microns/Br gamma ratio value of 10 to 50. H2 emission is found in two filaments, confirming the presence of neutral cores. In the Cygnus loop faint, molecular hydrogen emission is detected in a bright optical filament. An image in the H2 line at 2.122 microns shows that some emission lies beyond the edge of the bright optical emission and is possibly associated with the non-radiative Balmer dominated shocks in this vicinity. There are also locations where H2 and bright optical line emission are coincident.

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