Results 11 to 20 of about 1,466 (265)

Searches for brown dwarfs [PDF]

open access: yesInternational Astronomical Union Colloquium, 1994
AbstractThis review attempts a brief summary of the numerous and diverse searches for the so-called brown dwarfs, substellar objects having masses between giant planets and the lowest mass M dwarf stars.
openaire   +1 more source

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

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

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

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

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

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

Exploring brown dwarf disks [PDF]

open access: yesAstronomy & Astrophysics, 2001
4 pages, 4 figures, A&A Letters in ...
NATTA A, TESTI L
openaire   +4 more sources

PICASO 3.0: A One-dimensional Climate Model for Giant Planets and Brown Dwarfs

open access: yesThe Astrophysical Journal, 2023
Upcoming James Webb Space Telescope observations will allow us to study exoplanet and brown dwarf atmospheres in great detail. The physical interpretation of these upcoming high signal-to-noise observations requires precise atmospheric models of ...
Sagnick Mukherjee   +3 more
doaj   +1 more source

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