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arxiv: 1508.07027 · v1 · submitted 2015-08-27 · 🌌 astro-ph.EP

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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
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D.P. Bennett The RoboNet Project MiNDSTEp Consortium U. G. Jorgensen M. Dominik M.I. Andersen E. Bachelet V. Bozza D. M. Bramich M. J. Burgdorf A. Cassan S. Ciceri G. D'Ago Subo Dong D. 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 The OGLE Project R. Poleski M. Pawlak M.K. Szymanski J. Skowron P. Mroz S. Kozlowski L. Wyrzykowski P. Pietrukowicz G. Pietrzynski I. Soszynski K. Ulaczyk The Spitzer Team C. Beichman G. Bryden S. Carey B. S. Gaudi C. Henderson R. W. Pogge Y. Shvartzvald the MOA Collaboration 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 P. J. Tristram Y. Wakiyama A. Yonehara KMTNet Modeling Team C. Han J.-Y.Choi H. Park Y. K. Jung I.-G. Shin
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classification 🌌 astro-ph.EP
keywords galacticplanetspitzercolddiskdistributionneptuneprotocols
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We report the detection of a Cold Neptune m_planet=21+/-2MEarth orbiting a 0.38MSol 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. (2015), 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 clearly not in the Galactic bulge.

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