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Spitzer and OGLE 2014 Observing Campaign

A joint Spitzer satellite and OGLE ground-based observing campaign was conducted in June/July 2014 aiming at the determination of precise "space" microlensing parallaxes and, thus, masses and distances of a large sample of gravitational microlenses. "Space" parallaxes have been derived for 24 events caused by single, binary and planetary microlenses. Similar campaign will be conducted in 2015.

The results of the Spitzer–OGLE campaign can be found in the following papers:

• "Spitzer as Microlens Parallax Satellite: Mass Measurement for the OGLE-2014-BLG-0124L Planet and its Host Star",
  A. Udalski, J.C. Yee, A. Gould, S. Carey, W. Zhu, J. Skowron, S. Kozłowski, R. Poleski, P. Pietrukowicz, G. Pietrzyński, M.K. Szymański, P. Mróz, I. Soszyński, K. Ulaczyk, Ł. Wyrzykowski, C. Han, S. Calchi Novati, R.W. Pogge,
  2015, ApJ, 799, 237; arXiv:1410.4219 version


• "First Space-based Microlens Parallax Measurement of an Isolated Star: Spitzer Observations of OGLE-2014-BLG-0939",
  J.C. Yee, A. Udalski, S. Calchi Novati, A. Gould, S. Carey, R. Poleski, B.S. Gaudi, R.W. Pogge, J. Skowron, S. Kozłowski, P. Mróz, P. Pietrukowicz, G. Pietrzyński, M.K. Szymański, I. Soszyński, K. Ulaczyk, Ł . Wyrzykowski,
  2015, ApJ, in press; arXiv:1410.5429 version


• "Pathway to the Galactic Distribution of Planets: Combined Spitzer and Ground-Based Microlens Parallax Measurements of 21 Single-Lens Events",
  S. Calchi Novati, A. Gould, A. Udalski, J.W.Menzies, I. A. Bond, Y. Shvartzvald, R. A. Street, M. Hundertmark, C. A. Beichman, J. C. Yee, S. Carey, R. Poleski, J. Skowron, S. Kozlowski, P. Mroz, P. Pietrukowicz, G. Pietrzynski, M. K. Szymanski, I. Soszynski, K. Ulaczyk, L. Wyrzykowski et al.,
  2015, ApJ, in press; arXiv:1411.7378 version


• "Spitzer as Microlens Parallax Satellite: Mass and Distance Measurements of Binary Lens System OGLE-2014-BLG-1050L",
  Wei Zhu, A. Udalski, A. Gould, M. Dominik, V. Bozza, C. Han, J.C. Yee, S. Calchi Novati, C.A. Beichman, S. Carey, R. Poleski, J. Skowron, S. Kozlowski, P. Mroz, P. Pietrukowicz, G. Pietrzynski, M.K. Szymanski, I. Soszynski, K. Ulaczyk, L. Wyrzykowski et al.,
  2015, ApJ, in press; arXiv:1501.04107 version

Any comments about the data and the form of their presentation are welcome as they can improve the future releases of OGLE analysis. Send your messages to this address.

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