Results 21 to 30 of about 1,398,905 (286)

BROWN DWARF DISKS WITH ALMA

open access: yesThe Astrophysical Journal, 2014
15 pages, 10 figures, accepted for publication in ...
L. Ricci   +5 more
openaire   +5 more sources

The “Mysterious” Origin of Brown Dwarfs [PDF]

open access: yesThe Astrophysical Journal, 2004
11 pages, 3 figures, ApJ submitted Error in equation 1 has been corrected.
Padoan, Paolo, Nordlund, AAke
openaire   +2 more sources

A theoretical study of stellar pulsations in young brown dwarfs [PDF]

open access: yes, 2011
>Magister Scientiae - MScThis thesis reports the results of a twofold study on the recently proposed phenomenon of 'stellar pulsations' in young brown dwarfs by the seminal study of Palla and Baraffe (2005) (PB05, thereafter).
Onchong'a, Okeng'o Geoffrey
core   +1 more source

Brown dwarfs in open clusters

open access: yes, 2005
This thesis presents the results of the work undertaken during the course of this PhD.;Firstly, the results of a large, deep survey of 5.65 square degrees of the Taurus Dark Clouds are presented.
Samantha Louise Osborne (7678322)
core   +6 more sources

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

open access: yesEPJ 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.   +8 more
doaj   +1 more source

Brown Dwarfs in the Hyades and Beyond? [PDF]

open access: yesThe Astronomical Journal, 1999
We have used both the Low-Resolution Imaging Spectrograph and the HIRES echelle spectrograph on the Keck telescopes to obtain spectra of twelve candidate members of the Hyades cluster identified by Leggett and Hawkins (1988, 1989). All of the objects are chromospherically-active, late-type M-dwarfs, with H$α$ equivalent widths varying from 1 to 30Å ...
Reid, I. Neill, Hawley, Suzanne L.
openaire   +2 more sources

MACHOs as brown dwarfs

open access: yes, 1998
Recent observations of microlensing events in the Large Magellanic Cloud suggest that a sizable fraction of the galactic halo is in the form of Massive Astrophysical Compact Halo Objects (MACHOs). Although the average MACHO mass is presently poorly known, the value $\sim 0.1 M_{\odot}$ looks as a realistic estimate, thereby implying that brown dwarfs ...
DE PAOLIS, Francesco   +3 more
openaire   +3 more sources

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

open access: yesAIP 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

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

open access: yesEPJ 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

THE LUMINOSITIES OF THE COLDEST BROWN DWARFS [PDF]

open access: yesThe Astrophysical Journal, 2014
Accepted for publication in The Astrophysical Journal (Oct 2, 2014).
C. G. Tinney   +5 more
openaire   +3 more sources

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