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Low Surface Brightness Galaxies in the Sloan Digital Sky Survey. I. Search Method and Test Sample

  • Authors: Alexei Y. Kniazev, Eva K. Grebel, Simon A. Pustilnik, Alexander G. Pramskij, Tamara F. Kniazeva, Francisco Prada, and Daniel Harbeck

Kniazev et al. 2004 The Astronomical Journal 127 704.

  • Provider: AAS Journals

Caption: Fig. 15.

Combined g, r, and i images of the galaxies SDSS J101142+003520 and SDSS J131215+003554 with superposed isophotes that correspond to the threshold level of the selection criterion. Both galaxies together with SDSS J140831−000737 (see Fig. 13) were found as unusual objects using the (g*−r*) vs. C plot in the region of the parameters (g*−i*) < 0.9 mag. and C > 2.8 (see Fig. 14). Galaxy SDSS J101142+003520 (left) looks lopsided, and galaxy SDSS J131215+003554 (right) exhibits either a bright H II region, an interacting galaxy, or a superposed background galaxy at the far end of its western spiral arm. The small object was observed spectroscopically by the SDSS. It has a velocity of 14,406 km s−1 and a strong H II emission‐line spectrum. A spectrum for the galaxy SDSS J131215+003554 has not yet been obtained, preventing further interpretation.

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