OGLE-2015-BLG-1670Lb: A Cold Neptune beyond the Snow Line in the Provisional WFIRST Microlensing Survey Field

• Published in: The Astronomical journal Vol. 157; no. 6; pp. 232 - 245
• Main Authors: Ranc, Clément, Bennett, David P., Hirao, Yuki, Udalski, Andrzej, Han, Cheongho, Bond, Ian A., Yee, Jennifer C., Albrow, Michael D., Chung, Sun-Ju, Gould, Andrew, Hwang, Kyu-Ha, Jung, Youn-Kil, Ryu, Yoon-Hyun, Shin, In-Gu, Shvartzvald, Yossi, Zang, Weicheng, Zhu, Wei, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Chung-Uk, Lee, Dong-Joo, Lee, Yong-Seok, Park, Byeong-Gon, Pogge, Richard W., Abe, Fumio, Barry, Richard K., Bhattacharya, Aparna, Donachie, Martin, Fukui, Akihiko, Itow, Yoshitaka, Kawasaki, Kohei, Kondo, Iona, Koshimoto, Naoki, Alex Li, Man Cheung, Matsubara, Yutaka, Miyazaki, Shota, Muraki, Yasushi, Nagakane, Masayuki, Rattenbury, Nicholas J., Suematsu, Haruno, Sullivan, Denis J., Sumi, Takahiro, Suzuki, Daisuke, Tristram, Paul J., Yonehara, Atsunori, Poleski, Rados aw, Mróz, Przemek, Skowron, Jan, Szyma ski, Micha K., Soszy ski, Igor, Koz owski, Szymon, Pietrukowicz, Pawe, Ulaczyk, Krzysztof
• Format: Journal Article
• Language: English
• Published: Goddard Space Flight Center The American Astronomical Society 01.06.2019; IOP Publishing
• Subjects: Astronomy; Astrophysics; Cosmic dust; Demography; Extinction; Galactic bulge; gravitational lensing: micro; Infrared telescopes; Latitude; Light curve; Microlenses; Planetary models; Planets; planets and satellites: detection; Polls & surveys; Snow line

We present the analysis of the microlensing event OGLE-2015-BLG-1670, detected in a high-extinction field very close to the Galactic plane. Due to the dust extinction along the line of sight, this event was too faint to be detected before it reached the peak of magnification. The microlensing light-...