Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-17T23:18:47.294Z Has data issue: false hasContentIssue false
  • English
  • Français

The Radial Velocity Projection Factor in the Pulsating Helium Star V652 Her

Published online by Cambridge University Press:  12 April 2016

P. Montañés Rodriguez ,
C. S. Jeffery ,
R. Aznar Cuadrado  and
D. Pollacco
P. Montañés Rodriguez
Affiliation:
Armagh Observatory, College Hill, Armagh BT61 9DG, Northern Ireland
C. S. Jeffery
Affiliation:
Armagh Observatory, College Hill, Armagh BT61 9DG, Northern Ireland
R. Aznar Cuadrado
Affiliation:
Armagh Observatory, College Hill, Armagh BT61 9DG, Northern Ireland
D. Pollacco
Affiliation:
Isaac Newton Group, La Palma, Spain

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The behavior of the velocity projection factor was studied for three individual Lines, He ɪ 4438 Å, Si ɪɪɪ 4553 Å, and N ɪɪ 4442 Å, and for the complete spectrum in the radially pulsating helium rich star V652 Her. It is shown that the projection factor is itself a function of expansion velocity.

Type
Part 6. Variables Close to the Main Sequence
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 441 - 442
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Albrow, M.D. & Cottrell, P.L. 1994, MNRAS, 267, 548 Google Scholar
Getting, I.A. 1935, MNRAS, 95, 141 Google Scholar
Hill, P.W., Kilkenny, D., Schönberner, D., & Walker, H.J. 1981, MNRAS, 197, 81 Google Scholar
Jeffery, C.S., Hill, P.W., & Heber, U. 1999, A&A, 346, 491 Google Scholar
Lynas-Gray, A.E., Schönberner, D., Hill, P.W., & Heber, U. 1984, MNRAS, 209, 387 Google Scholar
Parsons, S.B. 1972, ApJ, 174, 57 CrossRefGoogle Scholar