Discovery of a Low Surface Brightness Object near Seyfert's Sextet
Takashi Murayama, Shingo Nishiura, Tohru Nagao, Yasunori Sato, Yoshiaki Taniguchi, D. B. Sanders
Abstract
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 re(VR)=4.8 arcsec and re(I)=4.8 arcsec is very low --- mue(VR)=25.28 mag arcsec-2 and mue(I)=24.47 mag arcsec-2, respectively. The apparent magnitudes are mAB(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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