Year: 2015
Type: article
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, for detecting planets. The implications of our results to the ongoing and future space-based microlensing experiments to measure the Galactic distribution of planets are discussed.
Source: The Astrophysical Journal
Authors: Wei Zhu (祝伟), Andrew Gould, Charles Beichman, Sebastiano Calchi Novati, Sean Carey, B. Scott Gaudi, Calen B. Henderson, Matthew Penny, Yossi Shvartzvald, Jennifer C. Yee, A. Udalski, R. Poleski, J. Skowron, S. Kozłowski, P. Mróz, P. Pietrukowicz, G. Pietrzyński, M. K. Szymański, I. Soszyński, K. Ulaczyk, Ł. Wyrzykowski, F. Abe, R. K. Barry, D. P. Bennett, A. Bhattacharya, I. A. Bond, M. Freeman, A. Fukui, Y. Hirao, Y. Itow, N. Koshimoto, H. Ling, K. Masuda, Y. Matsubara, Y. Muraki, M. Nagakane, K. Ohnishi, To. Saito, D. J. Sullivan, T. Sumi, D. Suzuki, P. J. Tristram, N. Rattenbury, Y. Wakiyama, A. Yonehara, D. Maoz, S. Kaspi, M. Friedmann, The Wise group
Institutions: The Ohio State University, California Institute of Technology, NASA Exoplanet Science Institute, University of Salerno, International Institute for Advanced Scientific Studies "Eduardo R. Caianiello", Jet Propulsion Laboratory, Center for Astrophysics Harvard & Smithsonian, University of Warsaw, Nagoya University, Goddard Space Flight Center, University of Notre Dame, Massey University, University of Auckland, National Astronomical Observatory of Japan, The University of Osaka, National Institute of Technology, Nagano College, Victoria University of Wellington, Kyoto Sangyo University, Tel Aviv University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1806384921