Discovery of a Low Surface Brightness Object near Seyfert's Sextet

Details Discovery of a Low Surface Brightness Object near Seyfert's Sextet Discovery of a Low Surface Brightness Object near Seyfert's Sextet

2000-01-05

arxiv.org/abs/astro-ph/0001071v1

Astron.J. 119 (2000) 1691-1694

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, to appear in the April 2000 issue of The Astronomical Journal

Scientific paper

10.1086/301320

We report the discovery of a low surface brightness (LSB) object serendipitously found during deep CCD imaging of a compact group of galaxies, Seyfert's Sextet, in VR and I bands. The LSB object is located 2.3 arcmin southwest from the group center. Its surface brightness within the angular effective radii of r_e(VR)=4.8 arcsec and r_e(I)=4.8 arcsec is very low --- mu_e(VR)=25.28 mag arcsec-2 and mu_e(I)=24.47 mag arcsec-2, respectively. The apparent magnitudes are m_AB(VR)=19.87 mag and m(I)=19.06 mag. The object is most likely a LSB dwarf galaxy, but other possibilities are also discussed.

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