New radial velocities are found for ? Per, HD 22951, HD 24131, and HD 24640. Jordan's orbit for o Per is confirmed and HD 24640 is found to be a ?-Cephei variable. The system reproduces the well-determined radial velocity of ? Per.
- 1 - natural sciences ; 2 - physics & astronomy ; 3 - astronomy & astrophysics
- 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Space and Planetary Science
- 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - Astronomy and Astrophysics