The size of MRK 231 at 10 microns

Details The size of MRK 231 at 10 microns The size of MRK 231 at 10 microns

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....94..297m&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 94, Aug. 1987, p. 297-299. NSF-supported research.

Other

17

Astrometry, Astronomical Spectroscopy, Quasars, Radio Spectra, Seyfert Galaxies, Spatial Resolution, Galactic Evolution, Galactic Nuclei, Size (Dimensions), Spectrum Analysis

Scientific paper

A new technique is demonstrated for using the signal from a source at a wavelength where it is strong to assist in determining its size at another wavelength. Observations of the size of the nucleus of Mrk 231 at 10 microns are consistent with a picture of a single luminosity source, perhaps obscured by dust. The variation with wavelength of the emissivity of the grains is constrained to be less than (wavelength) - 1. The measurements are inconsistent with Mrk 231 being a starburst galaxy with a luminosity density similar to that of M82.

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