An Initiative to Search for Exoplanet Transits in Luminous Stars and in Young Star Clusters
Wen-Ping Chen1*, Shiang-Yu Wang2, Matt Lehner2
1Astronomy, National Central University, Zhongli, Taiwan
2Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan
* presenting author:Wen-Ping Chen, email:wchen@astro.ncu.edu.tw
Exoplanets are ubiquitous, numbering to a couple thousands at the moment. The most fruitful comes from detection of characteristic light curves of transiting events by circumstellar planets. Most exoplanets known so far are found around stars with intermediate brightness to render "appropriate" photometric measurements, i.e., not saturating the detectors and with sufficient signal-to-noise. Moreover, theses planets are around field stars, i.e., already aged. Here we present a new program to use 4 wide-field telescopes originally for the TAOS project to search for exoplanet transits in luminous stars and in young star clusters. Two of the telescopes will be placed in Xinjiang Qitai Observatory and two in San Pedro Matir Observatory. A special readout of subframes up to 70 Hz allows acquisition of light curves of bright stars (~3 mag), otherwise not available currently for high-precision photometry. Exoplanets found in young star clusters will provide a valuable sample of planets in formation and earliest evolution.


Keywords: stars, planets, planet formation, high-speed photometry