The Distance of the Redshift-Discordant Member in Seyfert's Sextet

Details The Distance of the Redshift-Discordant Member in Seyfert's Sextet The Distance of the Redshift-Discordant Member in Seyfert's Sextet

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...18510602w&link_type=abstract

American Astronomical Society, 185th AAS Meeting, #106.02; Bulletin of the American Astronomical Society, Vol. 26, p.1494

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We use B-band HST WFC images deconvolved with the sigma -CLEAN algorithm (Keel 1991, PASP, 103, 723) to estimate the relative distance of the discordant redshift member in the compact group of galaxies known as Seyfert's Sextet (SS). We report on a comparison between the luminosity function of the HII regions in the SS group member and in nearby Sc galaxies (Kennicutt, Edgar & Hodge 1989, ApJ, 337, 761). We further compare the size of the largest star-forming superassociation in this galaxy with the size-distance correlation established in Elmegreen, Elmegreen, Lang & Stephens 1994, ApJ, 425, 57. The newly determined distance favors the idea that the galaxy lies beyond the group. The HST images also reveal new structural peculiarities in the accordant redshift members of this ``quintet'' and the possibility that quiet merger events occur in compact groups.

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