Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I.
@article{Gray2003ContributionsTT, title={Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I.}, author={Richard O. Gray and Christopher J. Corbally and Robert F. Garrison and M. T. McFadden and P. E. Robinson}, journal={The Astronomical Journal}, year={2003}, volume={126}, pages={2048 - 2059} }
We have embarked on a project, under the aegis of the Nearby Stars (NStars)/Space Interferometry Mission Preparatory Science Program, to obtain spectra, spectral types, and, where feasible, basic physical parameters for the 3600 dwarf and giant stars earlier than M0 within 40 pc of the Sun. In this paper, we report on the results of this project for the first 664 stars in the northern hemisphere. These results include precise, homogeneous spectral types, basic physical parameters (including the…
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References
SHOWING 1-10 OF 51 REFERENCES
S4N: A spectroscopic survey of stars in the solar neighborhood: The nearest 15 pc
- Physics
- 2004
We report the results of a high-resolution spectroscopic survey of all the stars more luminous than M V = 6.5 mag within 14.5 pc from the Sun. The Hipparcos catalog's completeness limits guarantee…
A SURVEY OF CHROMOSPHERIC CA II H AND K EMISSION IN FIELD STARS OF THE SOLAR NEIGHBORHOOD.
- Physics
- 1980
Fluxes in 1 A bands at the centers of the H and K lines are being measured in main-sequence F-G-K-M stars in the northern half of the Woolley et al. (1970) 'Catalog of stars within twenty-five…
The Geneva–Copenhagen Survey of the Solar Neighbourhood
- Physics, GeologyPublications of the Astronomical Society of Australia
- 2004
Abstract We report on a new survey of metallicities, ages, and Galactic orbits for a complete, magnitude-limited, and kinematically unbiased all-sky sample of 16 682 nearby F- and G-dwarfs. Our ∼ 63…
M-subdwarfs: spectroscopic classification and the metallicity scale
- Physics, Geology
- 1997
We present a spectroscopic classification system for M-dwarfs and M-subdwarfs based on quantitative measures of TiO and CaH features in the region 6200 - 7400 Angstroms. Our sample of cool stars…
Stellar Kinematic Groups. I. The URSA Major Group
- Physics, Geology
- 1993
The Ursa Major Group (UMaG) is studied as a test case for the authenticity of Stellar Kinematic Groups, using Coravel radial velocities, recent compilations of astrometric data, and new spectroscopic…
A New Association of Post-T Tauri Stars near the Sun
- Physics
- 2000
Observing ROSAT sources in an area 20° × 25° centered at the high-latitude (b = -59°) active star ER Eri, we found evidences for a nearby association, that we call the Horologium association (HorA),…
The effective temperature scale of giant stars (F0–K5) - II. Empirical calibration of versus colours and [Fe/H]
- Physics
- 1999
We present calibrations of the effective temperatures of giant stars versus [Fe/H] and colours , , , , , , , , , , and . These calibrations are based on a large sample of field and globular cluster…
The chromospheres of late-type stars. II - An atlas of chromospheric lines for selected early-K stars
- Physics
- 1993
High-resolution spectra of the chromospheric Na I D lines, Ca I 4227, Mg I 4571, 5167, and 5172, the Ca II H and K resonance and IR 8542.144 and 8662.170 lines, and H-alpha and H-beta, all observed…
Missing Opacity in the Atmospheric Models of Red Giants
- Physics, Geology
- 1994
Synthetic spectra of Arcturus computed with the latest theoretical stellar atmospheres disagree strongly with both the spectral energy distribution and with the spectroscopic data for $\lambda <…
The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars
- Physics
- 2000
This is the first in a series of two papers that address the problem of the physical nature of luminosity classification in the late A-, F-, and early G-type stars. In this paper, we present precise…