منابع مشابه
Look at the Blazhko Effect in R R Lyrae Stars with High - Quality Data from the M A C H O Project
We present the first results of the analysis of 22 Blazhko stars. We find: 1) Blazhko RRab stars that are nearly pure amplitude modulators; 2) Blazhko RRab stars that have both amplitude and phase modulation; 3) A Blazhko RRab star that has an abrupt period change; 4) Proof of the Blazhko effect in RRc stars. Our data show the character of the amplitude and phase modulations of the light curves...
متن کاملThe Blazhko Effect of the RR Lyrae Star FM Persei
We have obtained 615 new V and R observations of the RR Lyrae star FM Per. A period search identified a primary period of 0.489256 days; however, the light curve of FM Per cannot be well described by a single period. We conclude that FM Per demonstrates the Blazhko effect with a Blazhko period of approximately 122 days.
متن کاملa new algorithm and software of individual life insurance and annuity computation
چکیده ندارد.
15 صفحه اولThe Blazhko effect on line profiles in the variable star RRLyrae
It is shown that the metallic line doubling phenomenon is well visible when the Blazhko effect is maximum while only a line broadening takes place when it is minimum. At this last phase, the hydrogen emission is very weak (under the continuum) but its intensity increases progressively towards the Blazhko maximum. The hydrogen line doubling does not present a noticeable Blazhko phase variation. ...
متن کاملN ov 2 00 3 FU Orionis : A Binary Star ?
By using the ALFA adaptive optics system at the 3.6m telescope of the Calar Alto Observatory we detected a faint red star in the apparent vicinity of FU Ori, the prototype of the FUor outburst stars. Independent confirmation of the detection is obtained from archival PUEO/CFHT images. The separation between the companion candidate and FU Ori is 0.50 and their brightness contrast is around 4 mag...
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ژورنال
عنوان ژورنال: Communications in Asteroseismology
سال: 2007
ISSN: 1021-2043,1021-2043
DOI: 10.1553/cia146s11