Directed follow-up strategy of low-cadence photometric surveys in search of transiting exoplanets - II. Application to Gaia

作者：Dzigan Yifat^*; Zucker Shay

来源：Monthly Notices of the Royal Astronomical Society, 2013, 428(4): 3641-3647.

DOI：10.1093/mnras/sts301

• methods: data analysis
• methods: observational
• methods: statistical
• techniques: photometric
• surveys
• planetary systems

In a previous paper we presented the directed follow-up (DFU) approach, which we suggested can be used to efficiently augment low-cadence photometric surveys in away that will optimize the chances to detect transiting exoplanets. In this paper we present preliminary tests of applying the DFU approach to the future European Space Agency space mission Gaia. We demonstrate the strategy application to Gaia photometry through a few simulated cases of known transiting planets, using Gaia expected performance and current design. We show that despite the low-cadence observations DFU, when tailored for Gaia's scanning law, can facilitate detection of transiting planets with ground-based observations, even during the lifetime of the mission. We conclude that Gaia photometry, although not optimized for transit detection, should not be ignored in the search of transiting planets. With a suitable ground-based follow-up network it can make an important contribution to this search.

• 出版日期2013-2