The optical properties of the unusual galaxy Markarian 348

Details The optical properties of the unusual galaxy Markarian 348 The optical properties of the unusual galaxy Markarian 348

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...238l..11h&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 238, May 15, 1980, p. L11, L12.

Astronomy and Astrophysics

Astrophysics

15

Galactic Structure, Optical Properties, Seyfert Galaxies, Hydrogen Atoms, Neutral Gases, Nuclear Reactions

Scientific paper

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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