Brown dwarf - Wikipedia
The nearest known brown dwarfs are located in the Luhman 16 system, a binary of L- and T-type brown dwarfs about 6.5 light-years (2.0 parsecs) from the Sun. Luhman 16 is the third closest system to the Sun after Alpha Centauri and Barnard's Star.
WISEA 1101+5400 - Wikipedia
WISEA 1101+5400 (full name WISEA J110125.95+540052.8) is a T-type brown dwarf (specifically T5.5) approximately 100 light-years away in the constellation Ursa Major.
T dwarf - Wikipedia
An object with the spectral type T (also called T dwarf or methane brown dwarf) [1] is either a brown dwarf [2] or young free-floating planetary-mass object. [3] An directly imaged exoplanet with a young age can also be a T-dwarf. [4] T dwarfs are colder than L …
WISE BROWN DWARF BINARIES: THE DISCOVERY OF A T5+T5 …
2011年7月14日 · In an effort to find brown dwarf binaries with even cooler, lower mass companions, we have observed with high-resolution imaging nine of these spectroscopically confirmed, late-type brown dwarfs (T5–T9) to search for binary companions.
search, including a T5 binary with nearly equal mass components and a faint companion to a T8.5 dwarf with an estimated spectral type of T9. Key words: binaries: general – brown dwarfs – stars: fundamental parameters – stars: individual
[1106.3142] WISE Brown Dwarf Binaries: The Discovery of a T5+T5 …
2011年6月16日 · We have begun a search for the coolest brown dwarfs using preliminary processing of data from the Wide-field Infrared Survey Explorer (WISE) and have confirmed many of the candidates as late-type T dwarfs.
Adam J. Burgasser, PhD :o: T dwarfs - MIT
T dwarfs are a class of low mass, low temperature, low luminosity brown dwarfs that exhibit spectral signatures of CH 4 and H 2 O in the near-infrared. These objects are the coolest "stars" so far detected, and likely have atmospheres not unlike those of hot extrasolar planets.
T Dwarf Classification - MIT
We present near-infrared spectra for a sample of T dwarfs, including eleven new discoveries made using the Two Micron All Sky Survey. These objects are distinguished from warmer (L-type) brown dwarfs by the presence of methane absorption bands in the 1--2.5 um spectral region.
Wise brown dwarf binaries: The discovery of a T5+T5 and
2011年6月16日 · The discovery of brown dwarfs of the new Y spectral type by the NASA Wide-field Infrared Survey Explorer (WISE) has allowed astronomers to study the physics of the coolest brown dwarfs...
WISE BROWN DWARF BINARIES: THE DISCOVERY OF A T5+T5 …
Here we present the first results of that search, including a T5 binary with nearly equal mass components and a faint companion to a T8.5 dwarf with an estimated spectral type of T9. The multiplicity properties of brown dwarfs are critical empirical constraints for formation theories, while multiples themselves provide unique opportunities to ...