RR Lyrae: Theory versus observation

Z. Kolláth, J. Robert Buchler, Michael Feuchtinger

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The luminosities, effective temperatures, and metallicities that are derived empirically by Kovács & Jurcsik from the light curves of a large number of globular cluster and field RRab and RRc stars are compared to theoretical RR Lyrae models. The strong luminosity dependence of the empirical blue and red edges (log L vs. log Teff diagram) is in disagreement with that of both radiative and convective models. A reexamination of the theoretical uncertainties in the modeling leads us to conclude that the disagreement appears irreconcilable.

Original languageEnglish
Pages (from-to)468-473
Number of pages6
JournalAstrophysical Journal
Volume540
Issue number1 PART 1
Publication statusPublished - Sep 1 2000

Fingerprint

luminosity
globular clusters
light curve
metallicity
diagram
diagrams
stars
modeling
temperature

Keywords

  • Stars: abundances
  • Stars: distances
  • Stars: fundamental parameters
  • Stars: horizontal-branch
  • Stars: oscillations
  • Stars: variables: other

ASJC Scopus subject areas

  • Space and Planetary Science
  • Nuclear and High Energy Physics

Cite this

Kolláth, Z., Buchler, J. R., & Feuchtinger, M. (2000). RR Lyrae: Theory versus observation. Astrophysical Journal, 540(1 PART 1), 468-473.

RR Lyrae : Theory versus observation. / Kolláth, Z.; Buchler, J. Robert; Feuchtinger, Michael.

In: Astrophysical Journal, Vol. 540, No. 1 PART 1, 01.09.2000, p. 468-473.

Research output: Contribution to journalArticle

Kolláth, Z, Buchler, JR & Feuchtinger, M 2000, 'RR Lyrae: Theory versus observation', Astrophysical Journal, vol. 540, no. 1 PART 1, pp. 468-473.
Kolláth Z, Buchler JR, Feuchtinger M. RR Lyrae: Theory versus observation. Astrophysical Journal. 2000 Sep 1;540(1 PART 1):468-473.
Kolláth, Z. ; Buchler, J. Robert ; Feuchtinger, Michael. / RR Lyrae : Theory versus observation. In: Astrophysical Journal. 2000 ; Vol. 540, No. 1 PART 1. pp. 468-473.
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