Mid-infrared spectroscopy of the hyperluminous infrared galaxy IRAS P09104+4109.

Details Mid-infrared spectroscopy of the hyperluminous infrared galaxy IRAS P09104+4109. Mid-infrared spectroscopy of the hyperluminous infrared galaxy IRAS P09104+4109.

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...318l...1t&link_type=abstract

Astronomy and Astrophysics, v.318, p.L1-L4

Astronomy and Astrophysics

Astrophysics

17

Hyperluminous Infrared Galaxy (Iras 09104+4109), Active Galactic Nuclei, Infrared Emission

Scientific paper

We present mid-infrared spectroscopy of the hyperluminous infrared galaxy IRAS 09104+4109 based on observations with ISOCAM CVF. We have detected the emission peak around 8μm as well as the absorption feature around 10μm possibly due to silicate, providing evidence for a dusty torus around the central engine. Comparing the observational results with the dusty torus model studied by Pier & Krolik (1992ApJ...401...99P), we show that the most mid infrared emission comes from a compact (a few pc in radius) dusty torus although the excess far infrared emission suggests the presence of an extended dusty torus with radius of ~100pc.

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