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Title:
The optical properties of the unusual galaxy Markarian 348
Authors:
Huchra, J.
Affiliation:
AA(Harvard-Smithsonian Center for Astrophysics, Cambridge, Mass.)
Publication:
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 238, May 15, 1980, p. L11, L12. (ApJL Homepage)
Publication Date:
05/1980
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
Galactic Structure, Optical Properties, Seyfert Galaxies, Hydrogen Atoms, Neutral Gases, Nuclear Reactions
DOI:
10.1086/183246
Bibliographic Code:
1980ApJ...238L..11H

Abstract

The Type 2 Seyfert galaxy Markarian 348 has been found by several observers to have an unusually large and massive halo of neutral hydrogen. The H I mass/optical luminosity is more than 10 times larger than average for galaxies of similar morphology, but the outer optical structure, as evidenced by the magnitude-aperture relation, and the galaxy colors are normal for galaxies of this type. The relationship between the H I cloud and the galaxy's nuclear activity is discussed.

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