The Future of Ultracool Dwarf Science with JWST
arXiv:0803.1476 · doi:10.1007/978-1-4020-9457-6_4
Abstract
Ultracool dwarfs exhibit a remarkably varied set of characteristics which hint at the complex physical processes acting in their atmospheres and interiors. Spectra of these objects not only depend upon their mass and effective temperature, but also their atmospheric chemistry, weather, and dynamics. As a consequence divining their mass, metallicity and age solely from their spectra has been a challenge. JWST, by illuminating spectral blind spots and observing objects with constrained masses and ages should finally unearth a sufficient number of ultracool dwarf Rosetta Stones to allow us to decipher the processes underlying the complex brown dwarf cooling sequence. In addition the spectra of objects invisible from the ground, including very low mass objects in clusters and nearby cold dwarfs from the disk population, will be seen for the first time. In combination with other ground- and space-based assets and programs, JWST will usher in a new golden era of brown dwarf science and discovery.
23 pages, 9 figures, for publication in proceedings of "Astrophysics in the Next Decade: JWST and Concurrent Facilities", a meeting held Sept. 24-27 in Tucson, Arizona
References in corpus (22)
- Line and Mean Opacities for Ultracool Dwarfs and Extrasolar Planets
- Atomic and Molecular Opacities for Brown Dwarf and Giant Planet Atmospheres
- Atmospheric Parameters of Field L and T Dwarfs
- Discovery of Two T Dwarf Companions with the Spitzer Space Telescope
- Ammonia as a tracer of chemical equilibrium in the T7.5 dwarf Gliese 570D
- Spitzer/IRAC Photometry of M, L, and T Dwarfs
- A Systematic Study of Departures from Chemical Equilibrium in the Atmospheres of Substellar Mass Objects
- SDSS J1534+1615AB: A Novel T Dwarf Binary Found with Keck Laser Guide Star Adaptive Optics and the Potential Role of Binarity in the L/T Transition
- Consistent simulations of substellar atmospheres and non-equilibrium dust-cloud formation
- HD 203030B: an Unusually Cool Young Sub-Stellar Companion near the L/T Transition
- A very cool brown dwarf in UKIDSS DR1
- Physical parameters of two very cool T dwarfs
- Physical and Spectral Characteristics of the T8 and Later-Type Dwarfs
- HD3651B: the first directly imaged brown dwarf companion of an exoplanet host star
- Eight new T4.5-T7.5 dwarfs discovered in the UKIDSS Large Area Survey Data Release 1
- 3.6-7.9 um Photometry of L and T Dwarfs and the Prevalence of Vertical Mixing in their Atmospheres
- Chemistry of Low Mass Substellar Objects
- Proper motion L and T dwarf candidate members of the Pleiades
- Thermal Infrared Constraint to a Planetary Companion of Vega with the MMT Adaptive Optics System
- Moderate Resolution Spitzer Infrared Spectrograph (IRS) Observations of M, L, and T Dwarfs
- Follow-up observations of binary ultra-cool dwarfs
- Outstanding Issues in Our Understanding of L, T, and Y Dwarfs
Cited by in corpus (9)
- The Discovery of Y Dwarfs Using Data from the Wide-field Infrared Survey Explorer (WISE)
- The 0.8-14.5 micron Spectra of Mid-L to Mid-T Dwarfs: Diagnostics of Effective Temperature, Grain Sedimentation, Gas Transport, and Surface Gravity
- Mid-Infrared Photometry of Cold Brown Dwarfs: Diversity in Age, Mass and Metallicity
- A Uniform Retrieval Analysis of Ultracool Dwarfs. III. Properties of Y-Dwarfs
- Asymmetric Dark Matter May Alter the Evolution of Low-mass Stars and Brown Dwarfs
- Evolutionary models for ultracool dwarfs
- Multiple Scattering Polarization of Substellar-mass Objects : T-dwarfs
- An Improved Near-Infrared Spectrum of the Archetype Y Dwarf WISEP J182831.08+265037.8
- Adaptive Optics Observations of Exoplanets, Brown Dwarfs, & Binary Stars