Results 21 to 30 of about 87,580 (344)

Massive white dwarfs in $$f(\mathtt {R,L_m})$$ f ( R , L m ) gravity

European Physical Journal C: Particles and Fields, 2022
In this work, we investigate the equilibrium configurations of massive white dwarfs (MWD) in the context of modified gravity, namely $$f(\mathtt {R,L_m})$$ f ( R , L m ) gravity, where $$\mathtt {R}$$ R stands for the Ricci scalar and $$\mathtt {L_m}$$ L
R. V. Lobato, G. A. Carvalho, N. G. Kelkar, M. Nowakowski   +3 more
doaj   +1 more source

Pleiades low-mass brown dwarfs: the cluster L dwarf sequence [PDF]

Astronomy & Astrophysics, 2006
14 pages, 7 figures, accepted for publication in Astronomy and ...
Bihain, G., Rebolo, R., Bejar, V. J. S., Caballero, J. A., Bailer-Jones, C. A. L., Mundt, R., Acosta-Pulido, J. A., Torres, A. Manchado   +7 more
openaire   +2 more sources

Modeling Brown Dwarfs, L Dwarfs, and T Dwarfs [PDF]

Symposium - International Astronomical Union, 2003
In this contribution, I review a subset of our recent efforts in spectral and opacity modeling aimed at guiding the study of brown dwarfs, L dwarfs, and T dwarfs. I discuss theoretical calculations of the alkali line profiles, newly generated CrH opacities, new evidence for refractory rainout in T dwarfs from optical spectral measurements, and the ...
openaire   +2 more sources

The ultracool-field dwarf luminosity-function and space density from the Canada-France Brown Dwarf Survey [PDF]

, 2010
Context. Thanks to recent and ongoing large scale surveys, hundreds of brown dwarfs have been discovered in the last decade. The Canada-France Brown Dwarf Survey is a wide-field survey for cool brown dwarfs conducted with the MegaCam camera on the Canada-
Allen, Basri, Bertin, Bertin, Bouy, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burningham, Burningham, Burningham, C. J. Willott, C. Reylé, Caballero, Chabrier, Chiu, Cruz, Cruz, Dahn, Delfosse, Delorme, Delorme, Drory, E. Artigau, Fan, Felten, Freytag, Fukugita, G. J. Hill, Geballe, Geballe, Gizis, Golimowski, Gould, Joergens, Kirkpatrick, Kirkpatrick, Kirkpatrick, Knapp, L. Albert, L. Malo, Lawrence, Leggett, Luhman, Mancini, Martín, Metchev, Moraux, Nakajima, P. Delorme, Pinfield, R. Doyon, Rebolo, Reid, Robin, Ruiz, Schmidt, Skrutskie, Stauffer, Stobie, T. Forveille, Taylor, Tinney, Tinney, Vrba, Warren, West, Willott, Willott, Willott, X. Delfosse, York   +73 more
core   +6 more sources

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

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
openaire   +3 more sources

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
openaire   +3 more sources

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

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
openaire   +3 more sources