IRAS 02366 - 3101 - an accretion disk candidate among luminous IRAS galaxies

Details IRAS 02366 - 3101 - an accretion disk candidate among luminous IRAS galaxies IRAS 02366 - 3101 - an accretion disk candidate among luminous IRAS galaxies

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...382l..63c&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 382, Dec. 1, 1991, p. L63-L67. Research supported by CONICET and

Astronomy and Astrophysics

Astronomy

16

Accretion Disks, Balmer Series, Galaxies, H Alpha Line, H Beta Line, Infrared Sources (Astronomy), Astronomical Models, Black Holes (Astronomy), Doppler Effect, Infrared Astronomy Satellite

Scientific paper

The detection of double-peaked broad Balmer H-alpha and H-beta emission-line profiles in a luminous IRAS galaxy is presented. These profiles consist of three components characterized by the following mean parameters: (1) a narrow component with FWHM of 571 km/s; (2) a blueward broad component with FWHM of 2794 km/s and velocity shift of the peak of -2120 km/s; (3) a redward broad component with FWHM of 2614 km/s and velocity shift of the peak of +2911 km/s; and (4) a blueward broad-to-redward broad emission-peak ratio of about 1.2. These parameters are consistent with the emission-line profile predicted by models such as those of Chen and Halpern (1989), where the low-ionization line emission comes from a relativistic accretion disk around a supermassive black hole. This detection shows that IRAS 02366-3101 is a candidate to host an accretion disk around a supermassive black hole in its nucleus, although other alternatives cannot be ruled out.

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