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Infrared

Mid/far infrared (MIR/FIR) data were obtained from the Infrared Astronomy Satellite (IRAS) Faint Source Catalogue (version 2.0) at four wavelengths ( tex2html_wrap_inline1790 , tex2html_wrap_inline1792 , tex2html_wrap_inline1794 and tex2html_wrap_inline1796 .) Giuricin, Marddirossian & Mezzetti (1995) find good agreement between the IRAS tex2html_wrap_inline1790 flux and the ground-based, small-beam tex2html_wrap_inline1800 (N-band) flux. Thus, it appears there are no strong confusing IR sources in the IRAS beam at the short IRAS wavelengths. Unless there is a very cool confusing source which only reveals itself at the longer IRAS wavelengths, this suggests that IRAS is providing a reliable measurement of the flux of MCG-6-30-15 at all IR wavelengths. Furthermore, this agreement between the ground-based observations and IRAS implies that there is little contribution to the NIR flux from the host galaxy. This is consistent with it being of Hubble type S0.

J-, H-, K- and L-band (i.e. tex2html_wrap_inline1804 ) fluxes were obtained from the ground-based work of Ward et al. (1987).



Chris Reynolds
Wed Jul 2 14:33:32 MDT 1997