arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1804.04079astro-ph.SRastro-ph.IM
收藏

盖亚数据中的全天RR天琴座星

All-sky RR Lyrae Stars in the Gaia Data

Lorenzo Rimoldini, Laurent Eyer, Nami Mowlavi, Dafydd W. Evans, Krzysztof Nienartowicz, Berry Holl, Marc Audard, Leanne P. Guy, Grégory Jevardat de Fombelle, Is… 展开作者

Lorenzo Rimoldini, Laurent Eyer, Nami Mowlavi, Dafydd W. Evans, Krzysztof Nienartowicz, Berry Holl, Marc Audard, Leanne P. Guy, Grégory Jevardat de Fombelle, Isabelle Lecoeur-Taïbi, Olivier Marchal, Gisella Clementini, Vincenzo Ripepi, Alessia Garofalo, Roberto Molinaro, Tatiana Muraveva, Ennio Poretti, László Molnár, Emese Plachy, Áron L. Juhász, László Szabados, Joris De Ridder, Sara Regibo, Luis Manuel Sarro Baro, Mauro López del Fresno

摘要:

第二次盖亚数据发布预计将包含约22个月观测的数据产品。基于这些数据,我们的目标是提供一个提前出版的全天空盖亚RR天琴座恒星的地图。虽然全面,这些数据仍然包含一个显着的比例的来源,这是不够采样的傅立叶级数分解的周期性光变化。描述了在识别RR Lyrics候选人(远)少于20个视场过境的挑战。一般考虑的结果,其局限性和解释,以及在随后的盖亚数据发布的改进前景。

英文摘要:

The second Gaia data release is expected to contain data products from about 22 months of observation. Based on these data, we aim to provide an advance publication of a full-sky Gaia map of RR Lyrae stars. Although comprehensive, these data still contain a significant fraction of sources which are insufficiently sampled for Fourier series decomposition of the periodic light variations. The challenges in the identification of RR Lyrae candidates with (much) fewer than 20 field-of-view transits are described. General considerations of the results, their limitations, and interpretation are presented together with prospects for improvement in subsequent Gaia data releases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑