• Corpus ID: 119369574

Astro2020 Science White Paper: High-Resolution Spectroscopic Surveys of Ultracool Dwarf Stars & Brown Dwarfs

@article{Burgasser2019Astro2020SW,
  title={Astro2020 Science White Paper: High-Resolution Spectroscopic Surveys of Ultracool Dwarf Stars \& Brown Dwarfs},
  author={Adam J. Burgasser and D{\'a}niel Apai and Daniella C. Bardalez Gagliuffi and Cullen H. Blake and Jonathan Gagn{\'e} and Quinn M. Konopacky and Emily C. Martin and Stanimir A. Metchev and Peter P. Plavchan and Ansgar Reiners and Everett Schlawin and Clara Sousa-Silva and Johanna M. Vos},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2019}
}
High resolution spectroscopy of the lowest-mass stars and brown dwarfs reveals their origins, multiplicity, compositions and physical properties, with implications for the star formation and chemical evolution history of the Milky Way. We motivate the need for high-resolution, infrared spectroscopic surveys to reach these faint sources. 

References

SHOWING 1-10 OF 39 REFERENCES

The Brown Dwarf Kinematics Project (BDKP). IV. Radial Velocities of 85 Late-M and L dwarfs with MagE

Radial velocity measurements are presented for 85 late M- and L-type very low-mass stars and brown dwarfs obtained with the Magellan Echellette spectrograph. Targets primarily have distances within

Spectral Properties Of Cool Stars : Extended Abundance Analysis Of 1,617 Planet-Search Stars

We present a catalog of uniformly determined stellar properties and abundances for 1,617 F, G, and K stars using an automated spectral synthesis modeling procedure. All stars were observed using the

CONSTRAINING THE AGE–ACTIVITY RELATION FOR COOL STARS: THE SLOAN DIGITAL SKY SURVEY DATA RELEASE 5 LOW-MASS STAR SPECTROSCOPIC SAMPLE

We present a spectroscopic analysis of over 38,000 low-mass stars from the Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Analysis of this unprecedentedly large sample confirms the previously

Brown Dwarfs in the Pleiades Cluster Confirmed by the Lithium Test

We present Keck Observatory 10 m telescope spectra of the two Pleiades brown dwarfs, Teide 1 and Calar 3, showing a clear detection of the Li 670.8 nm resonance line. In Teide 1, we have also

Metallicity of M dwarfs - I. A photometric calibration and the impact on the mass-luminosity relation at the bottom of the main sequence

We obtained high resolution ELODIE and CORALIE spectra for both components of 20 wide visual binaries composed of an F-, G- or K-dwarf primary and an M-dwarf secondary. We analyse the well-understood

A Physically Motivated and Empirically Calibrated Method to Measure the Effective Temperature, Metallicity, and Ti Abundance of M Dwarfs

The ability to perform detailed chemical analysis of Sun-like F-, G-, and K-type stars is a powerful tool with many applications, including studying the chemical evolution of the Galaxy and

On the Rotational Evolution of Solar- and Late-Type Stars, Its Magnetic Origins, and the Possibility of Stellar Gyrochronology*

We propose a simple interpretation of the rotation period data for solar- and late-type stars. The open cluster and Mount Wilson star observations suggest that rotating stars lie primarily on two

A VOLUME-LIMITED SAMPLE OF 63 M7–M9.5 DWARFS. I. SPACE MOTION, KINEMATIC AGE, AND LITHIUM

In a volume-limited sample of 63 ultracool dwarfs of spectral type M7–M9.5, we have obtained high-resolution spectroscopy with UVES at the Very Large Telescope and HIRES at Keck Observatory. In this

A global cloud map of the nearest known brown dwarf

A two-dimensional map of a brown dwarf’s surface is reported that allows identification of large-scale bright and dark features, indicative of patchy clouds, and suggests that the characteristic timescale for the evolution of global weather patterns is approximately one day.

ON THE ANGULAR MOMENTUM EVOLUTION OF FULLY CONVECTIVE STARS: ROTATION PERIODS FOR FIELD M-DWARFS FROM THE MEarth TRANSIT SURVEY

We present rotation period measurements for 41 field M-dwarfs, all of which have masses inferred (from their parallaxes and Two Micron All Sky Survey K-band magnitudes) to be between the hydrogen