Speckle masking observations of the Seyfert galaxy NGC 1386

Details Speckle masking observations of the Seyfert galaxy NGC 1386 Speckle masking observations of the Seyfert galaxy NGC 1386

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...264l...9m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 264, no. 1, p. L9-L12.

Astronomy and Astrophysics

Astrophysics

8

Active Galactic Nuclei, Seyfert Galaxies, Gas Density, Image Processing, Speckle Interferometry

Scientific paper

We report high-resolution speckle masking observations of the Seyfert galaxy NGC 1386. The H-alpha and RG 630 reconstructions show that the spatially extended NLR of NGC 1386 consists of several knots distributed in an elongated structure extending over more than 3 arcsec. Some of the knots are slightly resolved. The linear dimensions of these clouds (greater than 15 pc) are comparable to the substructure found in NGC 1068. The cone morphology suggests that the radiation characteristic of the nucleus is asymmetric - probably due to dust obscuration. The radial variation of the emissivity measure implies a non-monotonic gradient of the gas density.

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