We report new L and T dwarfs found in a cross-match of the SDSS Data Release 1 and 2MASS. Our simultaneous search of the two databases effectively allows us to relax the criteria for object detection in either survey and to explore the combined databases to a greater completeness level. We find two new T dwarfs in addition to the 13 already known in the SDSS DR1 footprint. We also identify 22 new candidate and bona fide L dwarfs, including a new young L2 dwarf and a peculiar potentially metal-poor L2 dwarf with unusually blue near-IR colors. These discoveries underscore the utility of simultaneous database cross-correlation in searching for rare objects.

Cone search capability for table J/ApJ/676/1281/table5 (Spitzer IRAC observations and photometry of ultracool dwarfs)

Cone search capability for table J/ApJ/676/1281/table2 (Additional candidates near bright stars)

Cone search capability for table J/ApJ/676/1281/table3 (Discarded candidates)

Cone search capability for table J/ApJ/676/1281/table7 (All Known T Dwarfs in SDSS DR1 and SDSS Flags (tables 7 and 14 of the paper))

Cone search capability for table J/ApJ/676/1281/table1 (Optical and near-IR photometry of candidate and known ultracool dwarfs)

Cone search capability for table J/ApJ/676/1281/table6 (Spectral types and colors of confirmed and candidate ultracool dwarfs)