A reliable determination of absolute luminosities of RR Lyrae variables would provide a crucial test of stellar evolution and a mean to determine the distance and age of globular clusters. The authors have developed a modification of the classical Baade-Wesselink method, aimed at exploiting the possibilities offered by multicolor photometric systems, by taking into proper account metallicity and gravity effects. Here the authors present the fundamental aspects of the method, emphasizing the importance of a self-consistent bidimensional approach to multicolor photometry, and give preliminary results of a first application to five field variables (SW And, RR Lyr, X Ari, SU Dra, VY Ser).

Radii and masses of Cepheids and RR Lyrae variables / Buonaura, B.; Caccin, B.; Onnembo, A.; Russo, G.; Sollazzo, C. - In: MEMORIE DELLA SOCIETÀ ASTRONOMICA ITALIANA. - ISSN 0037-8720. - 156:1(1985), pp. 153-166. (Intervento presentato al convegno Frascati Workshop on Population II Variables, tenutosi a Vulcano, Italy nel Sept. 17-21, 1984).

Radii and masses of Cepheids and RR Lyrae variables

Russo G.;
1985

Abstract

A reliable determination of absolute luminosities of RR Lyrae variables would provide a crucial test of stellar evolution and a mean to determine the distance and age of globular clusters. The authors have developed a modification of the classical Baade-Wesselink method, aimed at exploiting the possibilities offered by multicolor photometric systems, by taking into proper account metallicity and gravity effects. Here the authors present the fundamental aspects of the method, emphasizing the importance of a self-consistent bidimensional approach to multicolor photometry, and give preliminary results of a first application to five field variables (SW And, RR Lyr, X Ari, SU Dra, VY Ser).
1985
Radii and masses of Cepheids and RR Lyrae variables / Buonaura, B.; Caccin, B.; Onnembo, A.; Russo, G.; Sollazzo, C. - In: MEMORIE DELLA SOCIETÀ ASTRONOMICA ITALIANA. - ISSN 0037-8720. - 156:1(1985), pp. 153-166. (Intervento presentato al convegno Frascati Workshop on Population II Variables, tenutosi a Vulcano, Italy nel Sept. 17-21, 1984).
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/892423
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact