A Significant Overluminosity in the Transiting Brown Dwarf CWW 89Ab [PDF]
Astronomical Journal, 2018 We observed eclipses of the transiting brown dwarf CWW 89Ab at 3.6 and 4.5 μm using Spitzer/IRAC. The CWW 89 binary system is a member of the 3.0 ± 0.25 Gyr old open cluster Ruprecht 147 and is composed of a Sun-like primary and an early M-dwarf ...
T. Beatty +5 more
semanticscholar +1 more source
The Oceanus Moving Group: A New 500 Myr Old Host for the Nearest Brown Dwarf
The Astrophysical Journal, 2023 We report the discovery of the Oceanus moving group, a ≈500 Myr old group with 50 members and candidate members at distances 2–50 pc from the Sun, using an unsupervised clustering analysis of nearby stars with Gaia DR3 data.
Jonathan Gagné +7 more
doaj +1 more source
OGLE-2017-BLG-1522: A Giant Planet around a Brown Dwarf Located in the Galactic Bulge [PDF]
, 2018 We report the discovery of a giant planet in the OGLE-2017-BLG-1522 microlensing event. The planetary perturbations were clearly identified by high-cadence survey experiments despite the relatively short event timescale of tE ∼ 7.5 days.
Y. Jung +38 more
semanticscholar +1 more source
Spitzer Microlensing Parallax for OGLE-2017-BLG-0896 Reveals a Counter-rotating Low-mass Brown Dwarf [PDF]
Astronomical Journal, 2018 The kinematics of isolated brown dwarfs in the Galaxy, beyond the solar neighborhood, is virtually unknown. Microlensing has the potential to probe this hidden population, as it can measure both the mass and five of the six phase-space coordinates (all ...
Y. Shvartzvald +65 more
semanticscholar +1 more source
THE LUMINOSITIES OF THE COLDEST BROWN DWARFS [PDF]
The Astrophysical Journal, 2014 Accepted for publication in The Astrophysical Journal (Oct 2, 2014).
C. G. Tinney +5 more
openaire +4 more sources
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
Primeval very low-mass stars and brown dwarfs – IV. New L subdwarfs, Gaia astrometry, population properties, and a blue brown dwarf binary [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present 27 new L subdwarfs and classify five of them as esdL and 22 as sdL. Our L subdwarf candidates were selected with the UKIRT Infrared Deep Sky Survey and Sloan Digital Sky Survey. Spectroscopic follow-up was carried out primarily with the OSIRIS
Z. Zhang +21 more
semanticscholar +1 more source
HIP 33609 b: An Eccentric Brown Dwarf Transiting a V = 7.3 Rapidly Rotating B Star
The Astronomical Journal, 2023 We present the discovery and characterization of HIP 33609 b, a transiting warm brown dwarf orbiting a late B star, discovered by NASA's Transiting Exoplanet Survey Satellite as TOI-588 b. HIP 33609 b is a large ( R _b = ${1.580}_{-0.070}^{+0.074}$ R _J )
Noah Vowell +44 more
doaj +1 more source
The direct detection of the irradiated brown dwarf in the white dwarf–brown dwarf binary SDSS J141126.20+200911.1 [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We have observed the eclipsing, post-common envelope white dwarf–brown dwarf binary, SDSS141126.20+200911.1, in the near-IR with the HAWK-I imager, and present here the first direct detection of the dark side of an irradiated brown dwarf in the H band,
S. Casewell +5 more
semanticscholar +1 more source
Brown dwarfs forming in discs: Where to look for them?
EPJ Web of Conferences, 2011 A large fraction of the observed brown dwarfs may form by gravitational fragmentation of unstable discs. This model reproduces the brown dwarf desert, and provides an explanation for the existence of planetary-mass objects and for the binary properties ...
Stamatellos D., Whitworth A.
doaj +1 more source