Infrared speckle interferometry of the nucleus of NGC 1068

Details Infrared speckle interferometry of the nucleus of NGC 1068 Infrared speckle interferometry of the nucleus of NGC 1068

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...257l...7m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 257, June 1, 1982, p.L7-L11.

Astronomy and Astrophysics

Astronomy

32

Galactic Nuclei, Infrared Astronomy, Interferometry, Seyfert Galaxies, Speckle Patterns, Star Distribution, Density Distribution, Galactic Radiation, Luminosity

Scientific paper

Measurements based on an improved technique for one-dimensional, infrared speckle interferometry of the nucleus of NGC 1068 were made to test whether the source is single or multiple. At 2.26 microns nuclear emission from NGC 1068 is dominated by a nuclear core not greater than 0.2 arcsec in diameter. Within the area scanned, 5.2 x 10.5 arcsec, the total flux measured is 0.57 + or - 0.06 Jy, with 0.43 + or - 0.05 Jy contained in the unresolved core. Data are fitted most accurately by a two-component model, consisting of a compact source emitting approximately 80% of the flux and an extended source emitting the remainder.

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