Results 21 to 30 of about 83,683 (249)

Binaries and the L Dwarf/T Dwarf Transition [PDF]

The Astrophysical Journal, 2007
51 pages, 14 figures; accepted for publication in ...
openaire   +2 more sources

Polarization of L Dwarfs by Dust Scattering [PDF]

The Astrophysical Journal, 2005
Latex (aastex sty), 23 pages including 7 postscript figures. Accepted for publication in the Astrophysical Journal (Part 1)
Sengupta, S, Kwok, S
openaire   +4 more sources

A Search for L Dwarf Binary Systems [PDF]

The Astronomical Journal, 2001
We present analysis of HST Planetary Camera images of twenty L dwarfs identified in the course of the Two Micron All-Sky Survey. Four of the targets have faint, red companions at separations between 0.07 and 0.29 arcseconds (1.6 to 7.6 AU). In three cases, the bolometric magnitudes of the components differ by less than 0.3 magnitudes. Since the cooling
Reid, I. Neill, Gizis, John E., Kirkpatrick, J. Davy, Koerner, D. W.   +3 more
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Three Wide-Separation L dwarf Companions from the Two Micron All Sky Survey: Gl 337C, Gl 618.1B, and HD 89744B [PDF]

, 2001
We present two confirmed wide separation L-dwarf common proper motion companions to nearby stars and one candidate identified from the Two Micron All Sky Survey. Spectral types from optical spectroscopy are L0 V, L2.5 V, and L8 V.
Allende Prieto C., Arribas S., Baliunas S., Baraffe I., Bartkevicius A., Bertelli G., D. G. Monet, De Medeiros J. R., Delfosse X., Delfosse X., Duquennoy A., Edvardsson B., J. C. Wilson, J. Davy Kirkpatrick, J. E. Gizis, J. R. Houck, Jones H. R. A., Klemperer W., Lebre A., M. F. Skrutskie, Ng Y. K., Perryman M. A. C., Pizzolato N., Richichi A., Zahn J.-P.   +24 more
core   +3 more sources

L Dwarfs and the Substellar Mass Function [PDF]

The Astrophysical Journal, 1999
This is a pre-published version which is collected from arXiv. The published version is at http://iopscience.iop.org/0004-637X/521/2/613/fulltext.
Reid, I. Neill, Kirkpatrick, J. Davy, Liebert, J., Burrows, A., Gizis, J. E., Burgasser, A., Dahn, C. C., Monet, D., Cutri, R., Beichman, C. A., Skrutskie, M.   +10 more
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A SURVEY FOR Hα EMISSION FROM LATE L DWARFS AND T DWARFS* [PDF]

The Astrophysical Journal, 2016
ABSTRACT Recently, studies of brown dwarfs have demonstrated that they possess strong magnetic fields and have the potential to produce radio and optical auroral emissions powered by magnetospheric currents. This emission provides the only window on magnetic fields in the coolest brown dwarfs and identifying additional benchmark objects ...
Pineda, J, Hallinan, G, Kirkpatrick, J, Cotter, G, Kao, M, Mooley, K   +5 more
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A Study of the Diverse T Dwarf Population Revealed by WISE [PDF]

, 2012
We report the discovery of 87 new T dwarfs uncovered with the Wide-field Infrared Survey Explorer (WISE) and three brown dwarfs with extremely red near-infrared colors that exhibit characteristics of both L and T dwarfs.
Bailey, Vanessa, Beichman, Charles A., Bloom, Joshua S., Burgasser, Adam J., Cushing, Michael C., Eisenhardt, Peter R., Fortney, Jonathan J., Gelino, Christopher R., Griffith, Roger L., Hinz, Philip M., Kirkpatrick, J. Davy, Knox, Russell P., Lowrance, Patrick J., Mace, Gregory N., Marley, Mark S., Marsh, Kenneth A., McLean, Ian S., Mix, Katholeen, Morley, Caroline V., Rodigas, Timothy J., Saumon, Didier, Sheppard, Scott S., Skrutskie, Michael F., Stock, Nathan D., Thompson, Maggie A., Wright, Edward L.   +25 more
core   +1 more source

Preliminary Parallaxes of 40 L and T Dwarfs from the U.S. Naval Observatory Infrared Astrometry Program [PDF]

, 2003
We present preliminary trigonometric parallaxes and proper motions for 22 L dwarfs and 18 T dwarfs measured using the ASTROCAM infrared imager. Relative to absolute parallax corrections are made by employing 2MASS and/or SDSS photometry for reference ...
A. A. Henden, A. J. Burgasser, B. Canzian, C. B. Luginbuhl, D. A. Golimowski, D. P. Schneider, Delfosse X., F. J. Vrba, G. R. Knapp, H. H. Guetter, J. A. Munn, J. Brinkmann, J. Davy Kirkpatrick, Luginbuhl C. B., S. K. Leggett, T. R. Geballe, Vrba F. J., X. Fan   +17 more
core   +3 more sources

The ages of L dwarfs

Monthly Notices of the Royal Astronomical Society, 2008
8 pages, 5 figures.
Jameson, R. F., Lodieu, N., Casewell, S. L., Bannister, N. P., Dobbie, P. D.   +4 more
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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, J. Davy Kirkpatrick, Adam J. Burgasser, Eric Stempels   +3 more
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