V1898 Cygni: An interacting eclipsing binary in the vicinity of North America nebula
Makaleler > Tam Makale · 2011
Yazarlar: Ahmet Dervişoğlu, Esin SİPAHİ KILIÇ, C. İbanoǧlu, E. Sipahi
Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.47, Uluslararası, 2011, cilt 47, ss 297-307
DOI: 10.5072/zenodo.32722
Özet
"We present spectroscopic observations of the double-lined Algol type eclipsing binary V1898Cyg. Analyses of the BV light curves and RVs led to determination of the fundamental stellar parameters of the V1898Cygs components. The absolute parameters for the stars are derived as: M1 = 6.054 ± 0.037 M, M2 = 1.162 ± 0.011 M, R1 = 3.526 ± 0.009 R, R2 = 2.640 ± 0.010 R, Teff1 = 18000 ± 600 K, and Teff2 = 6200±200 K. The residuals between the observed and computed times of mid-eclipses were analysed and a rate of the period change P /P = 6.68×107 yr1 was obtained; a mass transfer rate of 1.88×107 M in a year is estimated. We have calculated the distance to the system V1898Cyg as 501 ± 5 pc using the infrared JHK magnitudes and bolometric corrections for the primary star. The components of the systems proper motions present some indications about membership to the North America nebula."