Searching at 21-cm for IRAS galaxies behind the Milky Way

Astronomy and Astrophysics – Astronomy

Scientific paper

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Centimeter Waves, Infrared Astronomy Satellite, Infrared Sources (Astronomy), Irregular Galaxies, Milky Way Galaxy, Spiral Galaxies, Astronomical Catalogs, Far Infrared Radiation, H Lines, Radio Spectra, Spectral Line Width

Scientific paper

FIR colors and fluxes are used to select 36 IRAS point sources, with Galactic latitude absolute value of b less than 20 deg for study at 21 cm H I, with the Nancay 300-m telescope, as potential galaxies. Seven of them are shown to be galaxies with radial velocities less than 5000 km/sec. They appear to be normal galaxies, at rather large distances, with H I line profiles, H I masses, H I mass/luminosity ratios, and line widths typical of Sb-Sc galaxies, except for one or possibly two irregulars. The extension of the criteria to larger FIR fluxes did not lead to the detection of nearby galaxies.

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