Planet Sensitivity from Combined Ground- and Space-based Microlensing Observations
Abstract
To move one step forward toward a Galactic distribution of planets, we present the first planet sensitivity analysis for microlensing events with simultaneous observations from space and the ground. We present this analysis for two such events, OGLE-2014-BLG-0939 and OGLE-2014-BLG-0124, which both show substantial planet sensitivity even though neither of them reached high magnification. This suggests that an ensemble of low to moderate magnification events can also yield significant planet sensitivity and therefore probability to detect planets. The implications of our results to the ongoing and future space-based microlensing experiments to measure the Galactic distribution of planets are discussed.
Cite
@article{arxiv.1508.03336,
title = {Planet Sensitivity from Combined Ground- and Space-based Microlensing Observations},
author = {Wei Zhu and Andrew Gould and Charles Beichman and Sebastiano Calchi Novati and Sean Carey and B. Scott Gaudi and Calen B. Henderson and Matthew Penny and Yossi Shvartzvald and Jennifer C. Yee and A. Udalski and R. Poleski and J. Skowron and S. Kozlowski and P. Mroz and P. Pietrukowicz and G. Pietrzynski and M. K. Szymanski and I. Soszynski and K. Ulaczyk and L. Wyrzykowski and F. Abe and R. K. Barry and D. P. Bennett and A. Bhattacharya and I. A. Bond and M. Freeman and A. Fukui and Y. Hirao and Y. Itow and N. Koshimoto and H. Ling and K. Masuda and Y. Matsubara and Y. Muraki and M. Nagakane and K. Ohnishi and To. Saito and D. J. Sullivan and T. Sumi and D. Suzuki and P. J. Tristram and N. Rattenbury and Y. Wakiyama and A. Yonehara and D. Maoz and S. Kaspi and M. Friedmann},
journal= {arXiv preprint arXiv:1508.03336},
year = {2015}
}
Comments
10 pages, 5 figures, 1 table; ApJ in press