High Proper Motion Stars. IV. Radial Velocities of 166 Luyten Half‐Second Stars
| Autor: | P. C. Dawson, M. M. De Robertis |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Physics
education.field_of_study Proper motion Population Astronomy Astronomy and Astrophysics Astrophysics Escape velocity Space (mathematics) Radial velocity Stars Space and Planetary Science Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Halo education Astrophysics::Galaxy Astrophysics |
| Zdroj: | Publications of the Astronomical Society of the Pacific. 117:1-12 |
| ISSN: | 1538-3873 0004-6280 |
| DOI: | 10.1086/427790 |
| Popis: | We present 178 radial velocity measurements for 166 late-type stars selected from the Luyten half-second (LHS) proper motion catalog. Space velocities are given for all but two of them. Most of the stars lie within 25 pc of the Sun, but the list includes a handful of high-velocity transients from the halo population. None of the derived space velocities is high enough, however, to provide any constraint on the escape speed at the solar circle. Twenty-six stars are discussed in somewhat more detail, and evidence is adduced that several of them may be velocity variables. |
| Databáze: | OpenAIRE |
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