Results 51 to 60 of about 15,774,260 (349)
Infrared photometry of late-M, L, and T dwarfs [PDF]
, 2002 We present ZJHKL'M' photometry of a sample of 58 late M, L, and T dwarfs, most of which are identified from the Sloan Digital Sky Survey and the Two Micron All-Sky Survey.
Ivezic, Z +18 more
core +1 more source
Dwarf Archives: A Compendium of M, L, and T Dwarf Data [PDF]
AIP Conference Proceedings, 2009 Dwarf Archives is an online archive containing astrometric, photometric, and spectroscopic information for all known L and T dwarfs (over 650 objects), as well as a select sample of over 500 M dwarfs. In this paper, we describe the specific data available in the archive, the interface for searching through it and discuss plans for future updates.
Christopher R. Gelino +3 more
openaire +2 more sources
A Nongray Theory of Extrasolar Giant Planets and Brown Dwarfs [PDF]
, 1997 We present the results of a new series of nongray calculations of the atmospheres, spectra, colors, and evolution of extrasolar giant planets (EGPs) and brown dwarfs for effective temperatures below 1300 K.
A. Burrows +8 more
semanticscholar +1 more source
A Search for Companions to L Dwarfs [PDF]
Symposium - International Astronomical Union, 2003 We present the results of two imaging surveys for companions to low-luminosity dwarfs, one with Keck to a limiting magnitude of K = 20, and the other with HST to a limiting magnitude of I = 23. No companions were found at separations of 0″.5 to 20″.0, but seven companions were found within 0″.5. Based on sub-stellar evolutionary models, we estimate the
P. R. Allen +6 more
openaire +1 more source
A Search for L/T Transition Dwarfs with Pan-STARRS1 and WISE. III. Young L Dwarf Discoveries and Proper Motion Catalogs in Taurus and Scorpius–Centaurus [PDF]
, 2017 We present the discovery of eight young M7–L2 dwarfs in the Taurus star-forming region and the Scorpius–Centaurus OB Association, serendipitously found during a wide-field search for L/T transition dwarfs using Pan-STARRS1 (optical) and WISE (mid ...
W. Best +15 more
semanticscholar +1 more source
Toward Spectral Classification of L and T Dwarfs: Infrared and Optical Spectroscopy and Analysis [PDF]
, 2001 We present 0.6-2.5 μm, R ≳ 400 spectra of 27 cool, low-luminosity stars and substellar objects. Based on these and previously published spectra, we develop a preliminary spectral classification system for L and T dwarfs.
T. Geballe +28 more
semanticscholar +1 more source
The Onset of Methane in L Dwarfs [PDF]
The Astrophysical Journal, 2000 We have detected weak absorption features produced by the strong nu(3) methane band at 3.3 microns in two L dwarfs, 2MASSW J1507476-162738 and 2MASSI J0825196+211552, classified by Kirkpatrick et al. (2000) as spectral types L5 and L7.5 respectively. These absorptions occur in objects warmer than any in which methane previously has been detected, and ...
Noll, Keith S. +3 more
openaire +2 more sources
BROWN DWARFS IN YOUNG MOVING GROUPS FROM PAN-STARRS1. I. AB DORADUS [PDF]
, 2016 Substellar members of young (≲150 Myr) moving groups are valuable benchmarks to empirically define brown dwarf evolution with age and to study the low-mass end of the initial mass function.
K. Aller +13 more
semanticscholar +1 more source
A search for variability in brown dwarfs and L dwarfs
, 1999 A&A in press.
Bailer-Jones, C. A. L., Mundt, R.
openaire +2 more sources
Characterization of M, L, and T Dwarfs in the Sloan Digital Sky Survey [PDF]
, 2002 An extensive sample of M, L, and T dwarfs identified in the Sloan Digital Sky Survey (SDSS) has been compiled. The sample of 718 dwarfs includes 677 new objects (629 M dwarfs and 48 L dwarfs), together with 41 that have been previously published. All new
S. Hawley +32 more
semanticscholar +1 more source