Results 11 to 20 of about 53,034 (302)

Possible nuclear fusion of deuteron in the cores of Earth, Jupiter, Saturn, and brown dwarfs

AIP Advances, 2020
Many brown dwarfs have recently been discovered as sub-stellar objects in which deuteron thermonuclear fusion is taking place. Although Jupiter and Saturn emit nearly twice as much heat as they absorb from the Sun, their internal heat-generation ...
Mikio Fukuhara
doaj   +1 more source

Extending the Canada-France Brown Dwarf Survey to the near infrared

EPJ Web of Conferences, 2011
We present the first results of the Canada-France Brown Dwarfs Survey-InfraRed, hereafter CFBDSIR, our near infrared extension to the optical wide field survey CFBDS.
Bertin E., Willott C.J., Reylé C., Delfosse X., Artigau E., Forveille T., Delorme P., Albert L., Allard F.   +8 more
doaj   +1 more source

On the mass segregation of stars and brown dwarfs in Taurus [PDF]

, 2010
We use the new minimum spanning tree (MST) method to look for mass segregation in the Taurus association. The method computes the ratio of MST lengths of any chosen subset of objects, including the most massive stars and brown dwarfs, to the MST lengths ...
Adams, Allison, Andersen, Bastian, Bate, Briceño, Briceño, Cartwright, Dobashi, Estelle Moraux, Gomez, Goodwin, Goodwin, Gouliermis, Guieu, Gutermuth, Güdel, Jerome Bouvier, Joergens, Kenyon, Kenyon, Kenyon, Kirk, Kirk, Kroupa, Kroupa, Littlefair, Luhman, Luhman, Luhman, Luhman, Luhman, Luhman, Manuel Güdel, Monin, Padoan, Padoan, Palla, Parker, Prim, Reipurth, Richard J. Allison, Richard J. Parker, Sabbi, Sana, Schmalzl, Siess, Simon P. Goodwin, Stamatellos, Sylvain Guieu, Thies, Ungerechts, Walter, Whitworth, Whitworth   +54 more
core   +2 more sources

The brown dwarf desert as a consequence of orbital migration [PDF]

, 2001
We show that the dearth of brown dwarfs in short-period orbits around Solar-mass stars - the brown dwarf desert - can be understood as a consequence of inward migration within an evolving protoplanetary disc.
Armitage, Armitage, Artymowicz, Basu, Bonnell, Bouvier, Bryden, Béjar, Clarke, Duquennoy, Gizis, Goldreich, Gould, Haisch, Halbwachs, Hartmann, Ian A. Bonnell, Johnstone, Kirkpatrick, Kirkpatrick, Königl, Lin, Lin, Lin, Marcy, Marcy, Martín, Osterloh, Papaloizou, Philip J. Armitage, Reipurth, Reipurth, Shu, Stassun, Syer, Taam, Trilling, Trilling   +37 more
core   +3 more sources

JWST/NIRSpec Observations of the Coldest Known Brown Dwarf

The Astronomical Journal, 2023
We present 1–5 μ m spectroscopy of the coldest known brown dwarf, WISE J085510.83−071442.5 (WISE 0855), performed with the Near-Infrared Spectrograph (NIRSpec) on board the James Webb Space Telescope (JWST).
K. L. Luhman, P. Tremblin, C. Alves de Oliveira, S. M. Birkmann, I. Baraffe, G. Chabrier, E. Manjavacas, R. J. Parker, J. Valenti   +8 more
doaj   +1 more source

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

SMA and CARMA observations of young brown dwarfs in ρ Ophiuchi and Taurus

EPJ Web of Conferences, 2011
Molecular outflows provide vital information about the earliest stages in the birth of stars, studying the molecular outflow properties is therefore crucial for understanding how stars form.
Lee C.-F., Ngoc P.-B., Ho P.
doaj   +1 more source

An Investigation of New Brown Dwarf Spectral Binary Candidates From the Backyard Worlds: Planet 9 Citizen Science Initiative

The Astronomical Journal, 2023
We present three new brown dwarf spectral-binary candidates: CWISE J072708.09−360729.2, CWISE J103604.84−514424.4, and CWISE J134446.62−732053.9, discovered by citizen scientists through the Backyard Worlds: Planet 9 project.
Alexia Bravo, Adam C. Schneider, Daniella Bardalez Gagliuffi, Adam J. Burgasser, Aaron M. Meisner, J. Davy Kirkpatrick, Jacqueline K. Faherty, Marc J. Kuchner, Dan Caselden, Arttu Sainio, Les Hamlet, The Backyard Worlds: Planet 9 Collaboration   +11 more
doaj   +1 more source

Four Brown Dwarfs in the Taurus Star-Forming Region [PDF]

, 2001
We have identified four brown dwarfs in the Taurus star-forming region. They were first selected from $R$ and $I$ CCD photometry of 2.29 square degrees obtained at the Canada-France-Hawaii Telescope.
A. Magazzù, Bouvier J., C. Dougados, Cederblad S., Comeron F., E. L. Martín, E. Magnier, F. Ménard, J.-C. Cuillandre, Leinert Ch., X. Delfosse   +10 more
core   +2 more sources

Characterizing Young Brown Dwarfs using Low Resolution Near-IR Spectra [PDF]

, 2006
We present near-infrared (1.0-2.4 micron) spectra confirming the youth and cool effective temperatures of 6 brown dwarfs and low mass stars with circumstellar disks toward the Chamaeleon II and Ophiuchus star forming regions.
Baraffe I., Cambresy L., Comeron F., D. E. Peterson, D. T. Jaffe, J. C. Wilson, J. D. Smith, K. L. Luhman, K. N. Allers, M. C. Cushing, M. F. Skrutskie, M. Nelson, Michael C. Liu, Perrin G., Whittet D. C. B.   +14 more
core   +2 more sources