Results 21 to 30 of about 5,171 (308)
Searches for brown dwarfs [PDF]
International 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.
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A theoretical study of stellar pulsations in young brown dwarfs [PDF]
, 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
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, 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
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Brown Dwarfs in the Hyades and Beyond? [PDF]
The 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.
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Retrieval Study of Brown Dwarfs Across the L-T Sequence
, 2022 A large suite of 228 atmospheric retrievals is performed on a curated sample of 19 brown dwarfs spanning the L0 to T8 spectral types using the open-source Helios-r2 retrieval code, which implements the method of short characteristics for radiative ...
Kitzmann, Daniel +4 more
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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. +8 more
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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
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Exploring brown dwarf disks [PDF]
Astronomy & Astrophysics, 2001 4 pages, 4 figures, A&A Letters in ...
NATTA A, TESTI L
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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.
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Searching for Planets of Brown Dwarfs [PDF]
Symposium - International Astronomical Union, 2003 Up to now, most planet search projects have concentrated on G and K stars. In order to considerably widen the view, we have stated a survey for planets of old, nearby brown dwarfs and very low-mass stars. Using UVES, we have observed 26 brown dwarfs and very low-mass stars.
Guenther, E., Wuchterl, G.
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