A new narrow-line Seyfert 1 galaxy - IRAS 1652 + 395

Details A new narrow-line Seyfert 1 galaxy - IRAS 1652 + 395 A new narrow-line Seyfert 1 galaxy - IRAS 1652 + 395

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..726b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 15, 1989, p. 726-733. Research supported by the University of Ca

Astronomy and Astrophysics

Astronomy

2

Infrared Sources (Astronomy), Line Spectra, Seyfert Galaxies, X Ray Sources, Astronomical Spectroscopy, Forbidden Bands, Infrared Astronomy Satellite

Scientific paper

Multiwavelength observations of IRAS 1652 + 395, an FIR and X-ray source serendipitously discovered in the field of the BL Lac object Mrk 501, are reported. They show that IRAS 1652 + 395 is a new Seyfert 1 galaxy at a redshift of z = 0.069. The Balmer emission lines are only slightly broader (1000 km/sec FWHM) than the forbidden lines, suggesting a classification as a narrow-line Seyfert 1 galaxy, as reported by Osterbrock and Pogge (1985). Its energy distribution from FIR to X-ray frequencies is well fitted by starlight plus a power law of spectral index alpha = - 1.2, with no evidence of a 'blue bump'.

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