Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sodor, A."'
We present a new method for determining physical parameters of RRab variables exclusively from multicolour light curves. Our method is an Inverse Photometric Baade-Wesselink analysis which, using a nonlinear least squares algorithm, searches for the
Externí odkaz:
http://arxiv.org/abs/0811.3098
Autor:
Jurcsik, J., Sódor, Á., Szeidl, B., Kolláth, Z., Smith, H. A., Hurta, Zs., Váradi, M., Henden, A., Dékány, I., Nagy, I., Posztobányi, K., Szing, A., Vida, K., Vityi, N.
The analysis of the multicolour photometric observations of MW Lyr, a large modulation amplitude Blazhko variable, shows for the first time how the mean global physical parameters vary during the Blazhko cycle. About 1-2 percent changes in the mean r
Externí odkaz:
http://arxiv.org/abs/0811.3095
Autor:
Jurcsik, J., Sódor, Á., Hurta, Zs., Váradi, M., Szeidl, B., Smith, H. A., Henden, A., Dékány, I., Nagy, I., Posztobányi, K., Szing, A., Vida, K., Vityi, N.
We have obtained the most extensive and most accurate photometric data of a Blazhko variable MW Lyr during the 2006-2007 observing seasons. The data within each 0.05 phase bin of the modulation period (P_m=1/f_m) cover the entire light cycle of the p
Externí odkaz:
http://arxiv.org/abs/0807.0534
Autor:
Dekany, I., Kovacs, G., Jurcsik, J., Szabo, R., Varadi, M., Sodor, A., Posztobanyi, K., Hurta, Zs., Vida, K., Vityi, N., Szing, A.
We derive the basic physical parameters of the field double-mode RR Lyrae star BS Com from its observed periods and the requirement of consistency between the pulsational and evolutionary constraints. By using the current solar-scaled horizontal bran
Externí odkaz:
http://arxiv.org/abs/0802.0135
RV UMa is one of the RRab stars showing regular large amplitude light curve modulation. Extended photoelectric observations of RV UMa obtained at the Konkoly Observatory were published by Kanyo (1976). The analysis of the data was published by Kovacs
Externí odkaz:
http://arxiv.org/abs/0712.0479
Autor:
sódor, Á.
About a dozen field RR Lyrae stars have been observed with the 24-inch Heyde-Zeiss telescope of the Konkoly Observatory at Sv\'abhegy, Budapest, since its refurbishment in 2003. Most of the observing time is allocated for the investigation of the Bla
Externí odkaz:
http://arxiv.org/abs/0704.3341
Context. RR Gem is one of the few Blazhko RR Lyrae that has photometric observations available extended enough to study the long-term courses of its pulsation and modulation properties in detail. Aims. We investigate the pulsation and modulation prop
Externí odkaz:
http://arxiv.org/abs/0704.3337
Autor:
Jurcsik, J., Szeidl, B., Sódor, Á., Dékány, I., Hurta, Zs., Posztobányi, K., Vida, K., Váradi, M., Szing, A.
Publikováno v:
Astron.J.132:61-70,2006
Extended BV(RI)c CCD observations of SS Cnc, a short period RRab star are presented. Nearly 1400 data points in each band have been obtained spanning over 79 days during the spring of 2005. The star exhibits light curve modulation, the so called Blaz
Externí odkaz:
http://arxiv.org/abs/astro-ph/0603496
Autor:
Jurcsik, J., Szeidl, B., Váradi, M., Henden, A., Hurta, Zs., Lakatos, B., Posztobányi, K., Klagyivik, P., Sódor, Á.
Based on extended multicolour CCD photometry of the triple-mode radial pulsator V823 Cas we studied the properties of the coupling frequencies invoked by nonlinear processes. Our results support that a resonance connection as suggested by Antonello &
Externí odkaz:
http://arxiv.org/abs/astro-ph/0508646
For the first time connection between the pulsation and modulation properties of RR Lyrae stars has been detected. Based on the available data it is found that the possible range of the modulation frequencies, i.e, the possible maximum value of the m
Externí odkaz:
http://arxiv.org/abs/astro-ph/0508029