论文标题
GAIA22EOR：共生星V2756 SGR在深度日食中检测到
Gaia22eor: Symbiotic star V2756 Sgr detected in a deep eclipse
论文作者
论文摘要
V2756 SGR是一种长期以来的S型共生二进制，最近在$ \ sim $ 1 $ 1 Mag Eclipse的褪色中被检测到Gaia Satellite。据报道，这种行为是gaia22eor下的Gaia科学警报。 V2756 SGR尚未据报道是一种黯然失色的共生系统。在这项贡献中，我们研究了Gaia和ASAS-SN调查获得的该目标的最新光曲线，并通过ASAS调查和Dasch档案的光度法补充了这些数据。另外，检查了盖亚（Gaia）的低分辨率BP/RP光谱。基于提出的分析，我们得出的结论是，观察到的褪色确实是Cool Giant的V2756 SGR热点的蚀。这些数据还使我们能够将轨道周期完善至725美元$ \ $ 3天。
V2756 Sgr is a long-known S-type symbiotic binary that was recently detected in $\sim$ 1 mag eclipse-like fading by the Gaia satellite. This behavior was reported as a Gaia Science Alert under the designation Gaia22eor. V2756 Sgr has not been reported as an eclipsing symbiotic system. In this contribution, we have investigated the recent light curves of this target obtained by Gaia and ASAS-SN survey and supplemented these data by the photometry from the ASAS survey and DASCH archive. In addition, low-resolution BP/RP spectra from Gaia were examined. Based on the presented analysis, we conclude that the observed fading is indeed an eclipse of the hot component of V2756 Sgr by the cool giant. The data also allowed us to refine the orbital period to 725 $\pm$ 3 days.
