Spitzer parallax of OGLE-2015-BLG-0966: a cold Neptune in the Galactic disk

R. A. Street, A. Udalski, S. Calchi Novati, M. P G Hundertmark, W. Zhu, A. Gould, J. Yee, Y. Tsapras, D. P. Bennett, U. G. Jørgensen, Martin Dominik, M. I. Andersen, E. Bachelet, V. Bozza, D. M. Bramich, M. J. Burgdorf, A. Cassan, S. Ciceri, G. D'Ago, Subo DongD. F. Evans, Sheng-Hong Gu, H. Harkonnen, T. C. Hinse, Keith Horne, R. Figuera Jaimes, N. Kains, E. Kerins, H. Korhonen, M. Kuffmeier, L. Mancini, J. Menzies, S. Mao, N. Peixinho, A. Popovas, M. Rabus, S. Rahvar, C. Ranc, R. Tronsgaard Rasmussen, G. Scarpetta, R. Schmidt, J. Skottfelt, C. Snodgrass, J. Southworth, I. A. Steele, J. Surdej, E. Unda-Sanzana, P. Verma, C. von Essen, J. Wambsganss, Yi-Bo Wang, O. Wertz, R. Poleski, M. Pawlak, M. K. Szymański, J. Skowron, P. Mróz, S. Kozłowski, Ł. Wyrzykowski, P. Pietrukowicz, G. Pietrzyński, I. Soszyński, K. Ulaczyk, C. Beichman, G. Bryden, S. Carey, B. S. Gaudi, C. B. Henderson, R. W. Pogge, Y. Shvartzvald, F. Abe, Y. Asakura, A. Bhattacharya, I. A. Bond, M. Donachie, M. Freeman, A. Fukui, Y. Hirao, K. Inayama, Y. Itow, N. Koshimoto, M. C. A. Li, C. H. Ling, K. Masuda, Y. Matsubara, Y. Muraki, M. Nagakane, T. Nishioka, K. Ohnishi, H. Oyokawa, N. Rattenbury, To Saito, A. Sharan, D. J. Sullivan, T. Sumi, D. Suzuki, J. Tristram, Y. Wakiyama, A. Yonehara, C. Han, J-Y. Choi, H. Park, Y. K. Jung, I-G. Shin

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Abstract

We report the detection of a cold Neptune mplanet = 21 ± 2 M orbiting a 0.38 M M dwarf lying 2.5-3.3 kpc toward the Galactic center as part of a campaign combining ground-based and Spitzer observations to measure the Galactic distribution of planets. This is the first time that the complex real-time protocols described by Yee et al., which aim to maximize planet sensitivity while maintaining sample integrity, have been carried out in practice. Multiple survey and follow up teams successfully combined their efforts within the framework of these protocols to detect this planet. This is the second planet in the Spitzer Galactic distribution sample. Both are in the near to mid-disk and are clearly not in the Galactic bulge.

Original languageEnglish
Article number93
Pages (from-to)1-12
Number of pages12
JournalAstrophysical Journal
Volume819
Issue number2
Early online date2 Mar 2016
DOIs
Publication statusPublished - 10 Mar 2016

Keywords

  • Gravitational lensing: micro

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