ISOPHOT observations of narrow line Seyfert 1 galaxies

Details ISOPHOT observations of narrow line Seyfert 1 galaxies ISOPHOT observations of narrow line Seyfert 1 galaxies

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...350..765p&link_type=abstract

Astronomy and Astrophysics, v.350, p.765-776 (1999)

Astronomy and Astrophysics

Astrophysics

10

Galaxies: Individual:, Galaxies: Photometry, Galaxies: Seyfert, Infrared: Galaxies

Scientific paper

Broad infrared spectra (7-200 mu m) of four NLSy1 galaxies, obtained with the imaging photo-polarimeter (ISOPHOT) on-board ISO, are presented. ISOPHOT data have been analyzed applying a (non standard) method that is described in details. The infrared spectra of the four selected NLSy1 galaxies have been analyzed in order to derive the distribution of luminosities, temperatures, opacities and sizes of the emitting dust. A comparison between infrared (alpha_ {3,60}) and optical emission line (H_α/H_β and [OIII]/H_β) properties suggests that NLSy1 galaxies suffer different degrees of dust absorption according to the inclination of the line of sight.

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