Dome C长时间序列观测用于凌日搜索的前景
Prospects of long-time-series observations from Dome C for transit search
摘要:
凌日系外行星的探测需要高光度质量和长持续时间的光度恒星时间序列。在本文中,我们研究了南极观测平台圆顶C在其漫长的冬季期间,它允许相对较长的,不间断的时间序列的行星过境检测提供的优势。我们的计算包括限制由于太阳和月亮,云覆盖和降低测光质量的影响,为高消光的目标领域。我们比较了长时间序列的潜力,从圆顶C与一个单一的网站在智利,一个三个网站的低纬度网络,以及圆顶C与智利和网络的组合,分别。就高观测工作周期的前景而言,C穹顶是地球上获得不间断长时间观测的主要天文台址之一。然而,通过将Dome C集成到站点网络中,可以显著改善项目的工作周期。
英文摘要:
The detection of transiting extrasolar planets requires high-photometric quality and long-duration photometric stellar time-series. In this paper, we investigate the advantages provided by the Antarctic observing platform Dome C for planet transit detections during its long winter period, which allows for relatively long, uninterrupted time-series. Our calculations include limiting effects due to the Sun and Moon, cloud coverage and the effect of reduced photometric quality for high extinction of target fields. We compare the potential for long time-series from Dome C with a single site in Chile, a three-site low-latitude network as well as combinations of Dome C with Chile and the network, respectively. Dome C is one of the prime astronomical sites on Earth for obtaining uninterrupted long-duration observations in terms of prospects for a high observational duty cycle. The duty cycle of a project can, however, be significantly improved by integrating Dome C into a network of sites.
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。