论文标题
基于Gaia DR3数据的选定后AGB星星的进化状态
Evolutionary status of selected post-AGB stars based on Gaia DR3 data
论文作者
论文摘要
根据GAIA DR3数据，提出了24个AGB恒星的进化状态。所有24颗恒星的视差都准确至优于3 x sigma，并且RUWE值小于1.4。基于Gaia DR3距离，绝对发光性得出。对于14个恒星，亮度证实了它们的AGB后进化阶段。但是，以前被归类为AGB后星的V1027 CYG被发现具有较高的发光度。因此，它可能是G7ia型的进化，巨大的，脉动的半定期可变星。对于9个星星，亮度低于1000升（太阳），表明有些是RGB后星星，有些是HB后星星。这篇论文已在四个月前完成，但发布它的发布延迟。
The evolutionary status of 24 post-AGB stars is presented based on Gaia DR3 data. All 24 stars have parallaxes accurate to better than 3 X sigma and have RUWE values less than 1.4. Based on the Gaia DR3 distances the absolute luminosities are derived. For 14 of the stars, the luminosities confirm their post-AGB evolutionary stage. However, V1027 Cyg, which was previously classified as a post-AGB star, is found to have a higher luminosity; thus it may be an evolved, massive, pulsating semi-regular variable star of type G7Ia. For 9 of the stars, the luminosities are lower than 1000 L (sun), indicating that some are post-RGB stars and some are post-HB stars.This paper was completed more than four months ago but there was delay in getting it published.
