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Trigonometric Parallaxes for Two Late-Type Subdwarfs: LSR1425+71 (sdM8.0) and the Binary LSR1610-00 (sd?M6pec)
C. C. Dahn, H. C. Harris, S. E. Levine +9
Trigonometric parallax astrometry and BVI photometry are presented for two late-type subdwarf candidates, LSR1425+71 (sdM8.0) and LSR1610-00 (sd?M6pec). For the former we measure a…
Parallax and Luminosity Measurements of an L Subdwarf
Adam J. Burgasser, Frederick J. Vrba, Sébastien Lépine +5
We present the first parallax and luminosity measurements for an L subdwarf, the sdL7 2MASS J05325346+8246465. Observations conducted over three years by the USNO infrared astromet…
Trigonometric Parallaxes of Central Stars of Planetary Nebulae
Hugh C. Harris, Conard C. Dahn, Blaise Canzian +11
Trigonometric parallaxes of 16 nearby planetary nebulae are presented, including reduced errors for seven objects with previous initial results and results for six new objects. The…
A near-infrared survey of the N49 region around the Soft Gamma-Ray Repeater 0526-66
S. Klose, A. A. Henden, U. Geppert +7
We report the results of a deep near-infrared survey with VLT/ISAAC of the environment of the supernova remnant N49 in the Large Magellanic Cloud, which contains the soft gamma-ray…
L' and M' Photometry of Ultracool Dwarfs
D. A. Golimowski, S. K. Leggett, M. S. Marley +16
We have compiled L' and M' photometry of 63 single and binary M, L,and T dwarfs obtained at UKIRT using the MKO filter set. This compilation includes new L' data for 8 L dwarfs and…
Near-Infrared Photometry and Spectroscopy of L and T Dwarfs: the Effects of Temperature, Clouds, and Gravity
G. R. Knapp, S. K. Leggett, X. Fan +3
We present JHK photometry and spectroscopy for a sample of newly identified L and T dwarfs from the Sloan Digital Sky Survey (SDSS) and known dwarfs from the SDSS and the Two Micro…