منابع مشابه
The first PG 1159 close binary system
The archival spectrum of SDSS J212531.92-010745.9 shows not only the typical signature of a PG 1159 star, but also indicates the presence of a companion. With time-series photometry of SDSS J212531.92-010745.9 during 10 nights, spread over one month, with the Tübingen 80 cm and the Göttingen 50 cm telescopes, the binary nature of this object has recently been proven. An orbital period of 6.9 h ...
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ژورنال
عنوان ژورنال: Paroles gelées
سال: 2018
ISSN: 2377-6455,1094-7264
DOI: 10.5070/pg7311043848