Spitzer Microlensing Parallax for OGLE-2017-BLG-0896 Reveals a Counter-rotating Low-mass Brown Dwarf

Shvartzvald, Yossi and Yee, Jennifer C. and Skowron, Jan and Lee, Chung-Uk and Udalski, Andrzej and Calchi Novati, Sebastiano and Bozza, Valerio and Beichman, Charles A. and Bryden, Geoffery and Carey, Sean and Gaudi, B. Scott and Henderson, Calen B. and Zhu, Wei and Spitzer Team and Bachelet, Etienne and Bolt, Greg and Christie, Grant and Maoz, Dan and Natusch, Tim and Pogge, Richard W. and Street, Rachel A. and Tan, Thiam-Guan and Tsapras, Yiannis and LCO and \muFUN Follow-up Teams and Pietrukowicz, Paweł and Soszyński, Igor and Szymański, Michał K. and Mróz, Przemek and Poleski, Radoslaw and Kozłowski, Szymon and Ulaczyk, Krzysztof and Pawlak, Michał and Rybicki, Krzysztof A. and Iwanek, Patryk and OGLE Collaboration and Albrow, Michael D. and Cha, Sang-Mok and Chung, Sun-Ju and Gould, Andrew and Han, Cheongho and Hwang, Kyu-Ha and Jung, Youn Kil and Kim, Dong-Jin and Kim, Hyoun-Woo and Kim, Seung-Lee and Lee, Dong-Joo and Lee, Yongseok and Park, Byeong-Gon and Ryu, Yoon-Hyun and Shin, In-Gu and Zang, Weicheng and KMTNet Collaboration and Dominik, Martin and Helling, Christiane and Hundertmark, Markus and Jørgensen, Uffe G. and Longa-Peña, Penelope and Lowry, Stephen and Sajadian, Sedighe and Burgdorf, Martin J. and Campbell-White, Justyn and Ciceri, Simona and Evans, Daniel F. and Fujii, Yuri I. and Hinse, Tobias C. and Rahvar, Sohrab and Rabus, Markus and Skottfelt, Jesper and Snodgrass, Colin and Southworth, John and MiNDSTEp Collaboration

AJ