Astronomy and Astrophysics – Astronomy
Scientific paper
May 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...372..478h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 372, May 10, 1991, p. 478-486.
Astronomy and Astrophysics
Astronomy
25
Infrared Sources (Astronomy), Near Infrared Radiation, Polarimetry, Seyfert Galaxies, Astronomical Models, Astronomical Photometry, Astronomical Spectroscopy
Scientific paper
Optical and NIR polarization and flux density measurements of the IR luminous galaxy IRAS 23060 + 0505 are presented. The flux density in an 8-arcsec diameter aperture follows an approximate power law, while the polarized flux density spectrum steepens from a spectral index of 2.48 in the NIR to 6.0 shortward of 0.8 microns. The wavelength dependence of degree of polarization is unusual, rising very steeply from 1 to 2 percent in the blue to a level of about 8 percent in the I band and then falling slowly through the NIR. A number of different models have been developed as an aid to interpreting the wavelength dependence of polarization and flux density observed for 23060 + 0505. Scattering of radiation from a continuum source largely obscured from the direct sight is the most likely explanation for the observed polarization.
Bailey Jeremy
Brindle Christopher
Hough James H.
Wills Beverley J.
Wills Danielle
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