Ugyanarról a lengyel oldalról, de nem ezt vadászod véletlenül?HiL írta: ↑2022.05.11. 21:39Sziasztok!
Mostanában nagyon lefoglalnak az élet dolgai. Elég kevés időm marad a lényeges tevékenységre.
Közreadok egy GIF animációt. Ehhez hasonló fénygörbét kellene majd létrehozni a modellünkkel. Egy lengyel honlapon találtam. (http://ogle.astrouw.edu.pl/atlas/RR_Lyr.html) Ez nem az RR Lyrae, de ugyanaz a típus. Amennyire az egérkurzorral meg
HiL
Pseudo-RR Lyrae stars (Binary Evolution Pulsators)
Pulsating stars which are components of eclipsing binary systems are of particular interest, because they give us an opportunity to directly measure their masses and sizes. Unfortunately, to date no RR Lyrae star which is a member of an eclipsing binary system has been discovered, so masses of RR Lyrae stars are known only from models. In the OGLE databases we found a few candidates for RR Lyrae stars in eclipsing binary systems. The light curve of one of these objects - OGLE-BLG-RRLYR-02792 - is shown below. The left panel shows the original light curve folded with the pulsation period, the other two panels show the separated pulsational and eclipsing light curves.
OGLE-BLG-RRLYR-02792, R.A.=17:47:38.21 Dec=-35:31:07.1
OGLE-BLG-RRLYR-02792 was spectroscopically studied by Pietrzyński et al. (2012), who precisely determined the mass of the pulsating component. Surprisingly, it turned out that the mass of the pulsator is very small - only 0.26 of the Solar mass - completely at odds with the theoretical predictions for RR Lyrae stars. This object is probably the first representative of a new class of pulsating stars - Binary Evolution Pulsators - objects which mimic RR Lyrae stars, but have completely different internal structure and evolution history. The evolution of these stars is governed by the mass exchanges between two components of the binary system. It is estimated that about 0.2% of objects classified as RR Lyrae stars are actually Binary Evolution Pulsators.
Úgy tűnik, ha magával a névadóval nem is, de a kategória 0,2%-ánál érdemes próbálkoznod.