FOUR NEW T DWARFS IDENTIFIED IN Pan-STARRS 1 COMMISSIONING DATA
نویسندگان
چکیده
منابع مشابه
Asteroid Models from the Pan-STARRS Photometry
We present simulations on the asteroid photometric data that will be provided by the PanSTARRS (Panoramic Survey Telescope and Rapid Response System). The simulations were performed using realistic shape and light-scattering models, random orientation of spin axes, and rotation periods in the range 2–24 h. We show that physical models of asteroids can be reconstructed from this data with some l...
متن کاملDetectability of Transiting Jupiters and Low-Mass Eclipsing Binaries in Sparsely Sampled Pan-STARRS-1 Survey Data
We present detailed simulations of the Pan-STARRS-1 (PS1) multi-epoch, multiband 3π Survey in order to assess its potential yield of transiting planets and eclipsing binaries. This survey differs from dedicated transit surveys in that it will cover the entire Northern sky but provide only sparsely sampled light curves. Since most eclipses would be detected at only a single epoch, the 3π Survey ...
متن کاملThe Next Decade Of Solar System Discovery With Pan-STARRS
The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) at the University of Hawaii’s Institute for Astronomy is a funded project to repeatedly survey the entire visible sky to faint limiting magnitudes (mR ∼ 24). It will be composed of four 1.8m diameter apertures each outfitted with fast readout orthogonal transfer Giga-pixel CCD cameras. A single aperture prototype telescopes i...
متن کاملDiscovery of Four Field Methane (T-type) Dwarfs with 2MASS1
We report the discovery of four field methane (“T”-type) brown dwarfs using 2MASS survey data. One additional methane dwarf, previously discovered by SDSS, was also identified. Near-infrared spectra clearly show the 1.6 and 2.2 μm CH4 absorption bands characteristic of objects with Teff∼< 1300 K, as well as broadened H2O bands at 1.4 and 1.9 μm. Comparing the spectra of these objects with Gl 22...
متن کاملModeling Brown Dwarfs , L Dwarfs , and T Dwarfs
In this contribution, I touch on a subset of our recent efforts in spectral and opacity modeling aimed at improving our understanding of brown dwarfs, L dwarfs, and T dwarfs. I discuss theoretical calculations of the alkali line profiles, newly generated CrH opacities, new evidence for refractory rainout in T dwarfs from optical spectral measurements, and the distinction between brown dwarfs an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2011
ISSN: 0004-6256,1538-3881
DOI: 10.1088/0004-6256/142/3/77