Astrometry and Photometry for Cool Dwarfs and Brown Dwarfs [PDF]
48 pages, including 7 figures and 6 tables.
Richard L. Walker+18 more
openaire +3 more sources
Nearby M, L, and T Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE) [PDF]
In our effort to complete the census of low-mass stars and brown dwarfs in the immediate solar neighborhood, we present spectra, photometry, proper motions, and distance estimates for 42 low-mass star and brown dwarf candidates discovered by the Wide ...
M. Thompson+17 more
semanticscholar +1 more source
Dwarf Cepheids in the Carina Dwarf Spheroidal Galaxy [PDF]
20 pages of text, 7 ...
Denise Hurley-Keller+2 more
openaire +3 more sources
A Cross-Match of 2MASS and SDSS: Newly-Found L and T Dwarfs and an Estimate of the Space Densitfy of T Dwarfs [PDF]
We report new L and T dwarfs found in a cross-match of the SDSS Data Release 1 and 2MASS. Our simultaneous search of the two databases effectively allows us to relax the criteria for object detection in either survey and to explore the combined databases
Berriman B.+9 more
core +2 more sources
An Eccentric Brown Dwarf Eclipsing an M dwarf
Abstract We report the discovery of an M = 67 ± 2M J brown dwarf transiting the early M dwarf TOI-2119 on an eccentric orbit (e = 0.3362 ± 0.0005) at an orbital period of 7.200861 ± 0.000005 days. We confirm the brown dwarf nature of the transiting companion using a combination of ground-based and space-based photometry
Caleb I. Cañas+18 more
openaire +2 more sources
An overlooked brown dwarf neighbour (T7.5 at d ~ 5 pc) of the Sun and two additional T dwarfs at about 10 pc [PDF]
Although many new brown dwarf (BD) neighbours have recently been discovered thanks to new sky surveys in the mid- and near-infrared (MIR, NIR), their numbers are still more than five times lower than those of stars in the same volume.
G. Bihain+3 more
semanticscholar +1 more source
Periodic Radio Emission from the T8 Dwarf WISE J062309.94–045624.6
We present the detection of rotationally modulated, circularly polarized radio emission from the T8 brown dwarf WISE J062309.94−045624.6 between 0.9 and 2.0 GHz.
Kovi Rose+9 more
doaj +1 more source
Seventy-One New L and T Dwarfs from the Sloan Digital Sky Survey
We present near-infrared observations of 71 newly discovered L and T dwarfs, selected from imaging data of the Sloan Digital Sky Survey (SDSS) using the i-dropout technique.
Brinkmann, J.+7 more
core +1 more source
A deep WISE search for very late type objects and the discovery of two halo/thick-disc T dwarfs: WISE 0013+0634 and WISE 0833+0052 [PDF]
A method is defined for identifying late T and Y dwarfs in WISE down to low values of signal-to-noise. This requires a WISE detection only in the W2-band and uses the statistical properties of the WISE multi-frame measurements and profile fit photometry ...
D. Pinfield+28 more
semanticscholar +1 more source