Theoretical UBVI light curves of RR Lyrae stars (2024)

Dorfi, E., & Feuchtinger, M. U. (1999). Theoretical UBVI light curves of RR Lyrae stars. , 348(3), 815-824.

Dorfi, Ernst ; Feuchtinger, Michael U. / Theoretical UBVI light curves of RR Lyrae stars. in: . 1999 ; Band 348, Nr. 3. S. 815-824.

@article{9790e0443a484923b53adc1c939e3157,

title = "Theoretical UBVI light curves of RR Lyrae stars",

abstract = "By performing detailed frequency-dependent radiative transfer computations we have obtained UBVI light curves of nonlinear RR Lyrae models, which recently have been calculated by the Vienna nonlinear convective pulsation code. For two sets of stellar parameters (M = 0.65M?, L = 52.5 L?, Z - 0.001 as well as M = 0.75 M?, L = 52.5 L?, Z = 0.0001) the fundamental and the first overtone limit cycle solutions have been calculated for effective temperatures ranging from 6000 K to 7200 K. The results of these computations are used as input for the radiative transfer calculations. The properties of the UBVI light curves have been analyzed by means of standard Fourier decomposition and a detailed comparison to recent observations has been performed. As main results we find an good agreement with important observed RR Lyrae properties like pulsation amplitudes and Fourier parameters in B-, V-, and I-bands. Additionally from these synthetic colour light curves we derive linear transformation laws between amplitudes as well as Fourier parameters in the different passbands.",

author = "Ernst Dorfi and Feuchtinger, {Michael U.}",

note = "Coden: AAEJA Affiliations: Inst. f{\"u}r Astronomie, Universit{\"a}t Wien, T{\"u}rkenschanzstrasse 17, Wien, Austria Adressen: Dorfi, E.A.; Inst. f{\"u}r Astronomie; Universit{\"a}t Wien; T{\"u}rkenschanzstrasse 17 Wien, Austria; email: EAD@ASTRO.UNIVIE.AC.AT Source-File: AstroScopus.csv Import aus Scopus: 2-s2.0-0000895747 Importdatum: 14.12.2006 14:04:37",

year = "1999",

language = "English",

volume = "348",

pages = "815--824",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES S A",

number = "3",

}

Dorfi, E & Feuchtinger, MU 1999, 'Theoretical UBVI light curves of RR Lyrae stars', , Jg. 348, Nr. 3, S. 815-824.

Theoretical UBVI light curves of RR Lyrae stars. / Dorfi, Ernst; Feuchtinger, Michael U.

in: , Band 348, Nr. 3, 1999, S. 815-824.

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

TY - JOUR

T1 - Theoretical UBVI light curves of RR Lyrae stars

AU - Dorfi, Ernst

AU - Feuchtinger, Michael U.

N1 - Coden: AAEJAAffiliations: Inst. für Astronomie, Universität Wien, Türkenschanzstrasse 17, Wien, AustriaAdressen: Dorfi, E.A.; Inst. für Astronomie; Universität Wien; Türkenschanzstrasse 17 Wien, Austria; email: EAD@ASTRO.UNIVIE.AC.ATSource-File: AstroScopus.csvImport aus Scopus: 2-s2.0-0000895747Importdatum: 14.12.2006 14:04:37

PY - 1999

Y1 - 1999

N2 - By performing detailed frequency-dependent radiative transfer computations we have obtained UBVI light curves of nonlinear RR Lyrae models, which recently have been calculated by the Vienna nonlinear convective pulsation code. For two sets of stellar parameters (M = 0.65M?, L = 52.5 L?, Z - 0.001 as well as M = 0.75 M?, L = 52.5 L?, Z = 0.0001) the fundamental and the first overtone limit cycle solutions have been calculated for effective temperatures ranging from 6000 K to 7200 K. The results of these computations are used as input for the radiative transfer calculations. The properties of the UBVI light curves have been analyzed by means of standard Fourier decomposition and a detailed comparison to recent observations has been performed. As main results we find an good agreement with important observed RR Lyrae properties like pulsation amplitudes and Fourier parameters in B-, V-, and I-bands. Additionally from these synthetic colour light curves we derive linear transformation laws between amplitudes as well as Fourier parameters in the different passbands.

AB - By performing detailed frequency-dependent radiative transfer computations we have obtained UBVI light curves of nonlinear RR Lyrae models, which recently have been calculated by the Vienna nonlinear convective pulsation code. For two sets of stellar parameters (M = 0.65M?, L = 52.5 L?, Z - 0.001 as well as M = 0.75 M?, L = 52.5 L?, Z = 0.0001) the fundamental and the first overtone limit cycle solutions have been calculated for effective temperatures ranging from 6000 K to 7200 K. The results of these computations are used as input for the radiative transfer calculations. The properties of the UBVI light curves have been analyzed by means of standard Fourier decomposition and a detailed comparison to recent observations has been performed. As main results we find an good agreement with important observed RR Lyrae properties like pulsation amplitudes and Fourier parameters in B-, V-, and I-bands. Additionally from these synthetic colour light curves we derive linear transformation laws between amplitudes as well as Fourier parameters in the different passbands.

M3 - Article

VL - 348

SP - 815

EP - 824

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

IS - 3

ER -

Dorfi E, Feuchtinger MU. Theoretical UBVI light curves of RR Lyrae stars. . 1999;348(3):815-824.