Article (Scientific journals)
A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406
Tsapras, Y.; Choi, J.-Y.; Street, R. A. et al.
2014In Astrophysical Journal, 782, p. 48
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Keywords :
Astrophysics - Earth and Planetary Astrophysics
Abstract :
[en] We present a detailed analysis of survey and follow-up observations of microlensing event OGLE-2012-BLG-0406 based on data obtained from 10 different observatories. Intensive coverage of the lightcurve, especially the perturbation part, allowed us to accurately measure the parallax effect and lens orbital motion. Combining our measurement of the lens parallax with the angular Einstein radius determined from finite-source effects, we estimate the physical parameters of the lens system. We find that the event was caused by a $2.73\pm 0.43\ M_{\rm J}$ planet orbiting a $0.44\pm 0.07\ M_{\odot}$ early M-type star. The distance to the lens is $4.97\pm 0.29$\ kpc and the projected separation between the host star and its planet at the time of the event is $3.45\pm 0.26$ AU. We find that the additional coverage provided by follow-up observations, especially during the planetary perturbation, leads to a more accurate determination of the physical parameters of the lens.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Tsapras, Y.
Choi, J.-Y.
Street, R. A.
Han, C.
Bozza, V.
Gould, A.
Dominik, M.
Beaulieu, J.-P.
Udalski, A.
Jørgensen, U. G.
Sumi, T.
Wouters, D.
Christie, G.
DePoy, D. L.
Dong, S.
Drummond, J.
Gaudi, B. S.
Henderson, C. B.
Hwang, K. H.
Jung, Y. K.
Kavka, A.
Bennett, D. P.
Koo, J.-R.
Lee, C.-U.
Maoz, D.
Monard, L. A. G.
Natusch, T.
Ngan, H.
Park, H.
Pogge, R. W.
Porritt, I.
Shin, I.-G.
Bond, I. A.
Shvartzvald, Y.
Tan, T. G.
Yee, J. C.
Abe, F.
Botzler, C. S.
Freeman, M.
Fukui, A.
Fukunaga, D.
Itow, Y.
Koshimoto, N.
Ling, C. H.
Masuda, K.
Bramich, D. M.
Matsubara, Y.
Muraki, Y.
Namba, S.
Ohnishi, K.
Rattenbury, N. J.
Saito, To
Sullivan, D. J.
Sweatman, W. L.
Suzuki, D.
Tristram, P. J.
Browne, P.
Tsurumi, N.
Wada, K.
Yamai, N.
Yonehara, P. C. M. Yock A.
Horne, K.
Hundertmark, M.
Ipatov, S.
Kains, N.
Snodgrass, C.
Steele, I. A.
Alsubai, K. A.
Andersen, J. M.
Calchi Novati, S.
Damerdji, Yassine ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Diehl, C.
Elyiv, Andrii ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Giannini, E.
Hardis, S.
Harpsøe, K.
Hinse, T. C.
Juncher, D.
Kerins, E.
Korhonen, H.
Liebig, C.
Mancini, L.
Mathiasen, M.
Penny, M. T.
Rabus, M.
Rahvar, S.
Scarpetta, G.
Skottfelt, J.
Southworth, J.
Surdej, Jean  ;  Université de Liège - ULiège
Tregloan-Reed, J.
Vilela, C.
Kozłowski, J. Wambsganss S.
Kubiak, M.
Pietrukowicz, P.
Pietrzyński, G.
Poleski, R.
Skowron, J.
Soszyński, I.
Szymański, M. K.
Ulaczyk, K.
Albrow, Łukasz Wyrzykowski M. D.
Bachelet, E.
Barry, R.
Batista, V.
Bhattacharya, A.
Brillant, S.
Caldwell, J. A. R.
Cassan, A.
Cole, A.
Corrales, E.
Coutures, Ch
Dieters, S.
Dominis Prester, D.
Donatowicz, J.
Fouqué, P.
Greenhill, J.
Kane, S. R.
Kubas, D.
Marquette, J.-B.
Martin, R.
Menzies, J.
Pollard, K. R.
Williams, A.
More authors (114 more) Less
Language :
English
Title :
A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406
Publication date :
February 2014
Journal title :
Astrophysical Journal
ISSN :
0004-637X
eISSN :
1538-4357
Publisher :
IOP Publishing, Bristol, United Kingdom
Volume :
782
Pages :
48
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
9 pages, 4 figures, submitted to ApJ
Available on ORBi :
since 21 November 2013

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