Period-luminosity relation for M-type semiregular variables from Hipparcos parallaxes

Creative Commons License

YEŞİLYAPRAK C., Aslan Z.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol.355, no.2, pp.601-607, 2004 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 355 Issue: 2
  • Publication Date: 2004
  • Doi Number: 10.1111/j.1365-2966.2004.08344.x
  • Journal Name: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.601-607
  • Keywords: stars : distances, stars : fundamental parameters, stars : late-type, stars : oscillations, SEMI-REGULAR VARIABLES, MEAN ABSOLUTE MAGNITUDE, M-GIANT STARS, TRIGONOMETRIC PARALLAXES, PULSATION MODE, INTERSTELLAR EXTINCTION, CALIBRATION-PROBLEM, MIRA VARIABLES, RED VARIABLES, R-DORADUS
  • Open Archive Collection: AVESIS Open Access Collection
  • Akdeniz University Affiliated: No

Abstract

We have studied the period-luminosity (P-L) relationships of oxygen-rich semiregular (SR) variables in several wavelength bands using Hipparcos parallaxes with an accuracy of better than 10 per cent. We have shown that there is a clear dependence on period of absolute magnitude in the U, B, V, R, I C, J, H, K, L, M, N, [12], [25], [60] and [100] bands, and that the slope of the linear M-lambda - logP relation is a smooth function of wavelength. We point out that this relation can in principle be used to derive absolute bolometric magnitude as a function of period.