An analysis of binary microlensing event OGLE-2015-BLG-0060
- Tsapras, Y.
- Cassan, A.
- Ranc, C.
- Bachelet, E.
- Street, R.
- Udalski, A.
- Hundertmark, M.
- Bozza, V.
- Beaulieu, J. P.
- Marquette, J. B.
- Euteneuer, E.
- Bramich, D. M.
- Dominik, M.
- Figuera Jaimes, R.
- Horne, K.
- Mao, S.
- Menzies, J.
- Schmidt, R.
- Snodgrass, C.
- Steele, I. A.
- Wambsganss, J.
- Mróz, P.
- Szymański, M. K.
- Soszyński, I.
- Skowron, J.
- Pietrukowicz, P.
- Kozłowski, S.
- Poleski, R.
- Ulaczyk, K.
- Pawlak, M.
- Jørgensen, U. G.
- Skottfelt, J.
- Popovas, A.
- Ciceri, S.
- Korhonen, H.
- Kuffmeier, M.
- Evans, D. F.
- Peixinho, N.
- Hinse, T. C.
- Burgdorf, M. J.
- Southworth, J.
- Tronsgaard, R.
- Kerins, E.
- Andersen, M. I.
- Rahvar, S.
- Wang, Y.
- Wertz, O.
- Rabus, M.
- Calchi Novati, S.
- D'Ago, G.
- Scarpetta, G.
- Mancini, L.
- Abe, F.
- Asakura, Y.
- Bennett, D. P.
- Bhattacharya, A.
- Donachie, M.
- Evans, P.
- Fukui, A.
- Hirao, Y.
- Itow, Y.
- Kawasaki, K.
- Koshimoto, N.
- Li, M. C. A.
- Ling, C. H.
- Masuda, K.
- Matsubara, Y.
- Muraki, Y.
- Miyazaki, S.
- Nagakane, M.
- Ohnishi, K.
- Rattenbury, N.
- Saito, To.
- Sharan, A.
- Shibai, H.
- Sullivan, D. J.
- Sumi, T.
- Suzuki, D.
- Tristram, P. J.
- Yamada, T.
- Yonehara, A.
DOIAbstract
Funding: UK STFC grant ST/M001296/1 (KH).We present the analysis of stellar binary microlensing event OGLE-2015-BLG-0060 based on observations obtained from 13 different telescopes. Intensive coverage of the anomalous parts of the light curve was achieved by automated follow-up observations from the robotic telescopes of the Las Cumbres Observatory. We show that, for the first time, all main features of an anomalous microlensing event are well covered by follow-up data, allowing us to estimate the physical parameters of the lens. The strong detection of second-order effects in the event light curve necessitates the inclusion of longer-baseline survey data in order to constrain the parallax vector. We find that the event was most likely caus...
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