Ground-based Parallax Confirmed by Spitzer: Binary Microlensing Event MOA-2015-BLG-020

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Title

Ground-based Parallax Confirmed by Spitzer: Binary Microlensing Event MOA-2015-BLG-020

Content partner

The University of Auckland Library

Collection

ResearchSpace@Auckland

Description

We present the analysis of the binary gravitational microlensing event MOA-2015-BLG-020. The event has a fairly long timescale (∼63 days) and thus the light curve deviates significantly from the lensing model that is based on the rectilinear lens-source relative motion. This enables us to measure the microlensing parallax through the annual parallax effect. The microlensing parallax parameters constrained by the ground-based data are confirmed by the Spitzer observations through the satellite...

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Format

Research paper

Research format

Journal article

Date created

2017-08-20

Creator

Wang, Tianshu / Zhu, Wei / Mao, Shude / Bond, IA / Gould, A / Udalski, A / Sumi, T / Bozza, V / Ranc, C / Cassan, A / Yee, JC / Han, C / Abe, F / Asakura, Y / Barry, R / Bennett, DP / Bhattacharya, A / Donachie, M / Evans, P / Fukui, A / Hirao, Y / Itow, Y / Kawasaki, K / Koshimoto, N / Li, MCA / Ling, CH / Masuda, K / Matsubara, Y / Miyazaki, S / Muraki, Y / Nagakane, M / Ohnishi, K / Rattenbury, N / Saito, To / Sharan, A / Shibai, H / Sullivan, DJ / Suzuki, D / Tristram, PJ / Yamada, T / Yonehara, A / KozŁowski, S / Mróz, P / Pawlak, M / Pietrukowicz, P / Poleski, R / Skowron, J / Soszyński, I / Szymański, MK / Ulaczyk, K / Beichman, C / Bryden, G / Novati, S Calchi / Carey, S / Fausnaugh, M / Gaudi, BS / Henderson, CB / Shvartzvald, Y / Wibking, B / Albrow, MD / Chung, S-J / Hwang, K-H / Jung, YK / Ryu, Y-H / Shin, I-G / Cha, S-M / Kim, D-J / Kim, H-W / Kim, S-L / Lee, C-U / Lee, Y / Park, B-G / Pogge, RW / Street, RA / Tsapras, Y / Hundertmark, M / Bachelet, E / Dominik, M / Horne, K / Jaimes, R Figuera / Wambsganss, J / Bramich, DM / Schmidt, R / Snodgrass, C / Steele, IA / Menzies, J

URL

https://hdl.handle.net/2292/63200

Related subjects

Science & Technology / Physical Sciences / Astronomy & Astrophysics / binaries: general / Galaxy: bulge / gravitational lensing: micro / GRAVITATIONAL LENSING EXPERIMENT / JUPITER/SATURN ANALOG / DISTANCES / ALGORITHM / SYSTEMS / PLANET / MASSES / STARS / astro-ph.SR / 0201 Astronomical and Space Sciences / 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics / 0306 Physical Chemistry (incl. Structural)

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