A Sub-Saturn Mass Planet, MOA-2009-BLG-319Lb
- Miyake, N.
- Sumi, T.
- Dong, Subo
- Street, R.
- Mancini, L.
- Gould, A.
- Bennett, D. P.
- Tsapras, Y.
- Yee, J. C.
- Albrow, M. D.
- Bond, I. A.
- Fouque, P.
- Browne, P.
- Han, C.
- Snodgrass, C.
- Finet, F.
- Furusawa, K.
- Harpsoe, K.
- Allen, W.
- Hundertmark, M.
- Freeman, M.
- Suzuki, D.
- Abe, F.
- Botzler, C. S.
- Douchin, D.
- Fukui, A.
- Hayashi, F.
- Hearnshaw, J. B.
- Hosaka, S.
- Itow, Y.
- Kamiya, K.
- Kilmartin, P. M.
- Korpela, A.
- Lin, W.
- Ling, C. H.
- Makita, S.
- Masuda, K.
- Matsubara, Y.
- Muraki, Y.
- Nagayama, T.
- Nishimoto, K.
- Ohnishi, K.
- Perrott, Y. C.
- Rattenbury, N.
- Saito, To.
- Skuljan, L.
- Sullivan, D. J.
- Sweatman, W. L.
- Tristram, P. J.
- Wada, K.
- Yock, P. C. M.
- Bolt, G.
- Bos, M.
- Christie, G. W.
- DePoy, D. L.
- Drummond, J.
- Gal-Yam, A.
- Gaudi, B. S.
- Gorbikov, E.
- Higgins, D.
- Hwang, K. -H.
- Janczak, J.
- Kaspi, S.
- Lee, C. -U.
- Koo, J. -R.
- Kozlowski, S.
- Lee, Y.
- Mallia, F.
- Maury, A.
- Maoz, D.
- McCormick, J.
- Monard, L. A. G.
- Moorhouse, D.
- Munoz, J. A.
- Natusch, T.
- Ofek, E. O.
- Pogge, R. W.
- Polishook, D.
- Santallo, R.
- Shporer, A.
- Spector, O.
- Thornley, G.
- Allan, A.
- Bramich, D. M.
- Horne, K.
- Kains, N.
- Steele, I.
- Bozza, V.
- Burgdorf, M. J.
- Calchi Novati, S.
- Dominik, M.
- Dreizler, S.
- Glitrup, M.
- Hessman, F. V.
- Hinse, T. C.
- Jorgensen, U. G.
- Liebig, C.
- Maier, G.
- Mathiasen, M.
- Rahvar, S.
- Ricci, D.
- Scarpetta, G.
- Skottfelt, J.
- Southworth, J.
- Surdej, J.
- Wambsganss, J.
- Zimmer, F.
- Batista, V.
- Beaulieu, J. P.
- Brillant, S.
- Cassan, A.
- Cole, A.
- Corrales, E.
- Coutures, Ch.
- Dieters, S.
- Greenhill, J.
- Kubas, D.
- Menzies, J.
DOIAbstract
We report the gravitational microlensing discovery of a sub-Saturn mass planet, MOA-2009-BLG-319Lb, orbiting a K-or M-dwarf star in the inner Galactic disk or Galactic bulge. The high-cadence observations of the MOA-II survey discovered this microlensing event and enabled its identification as a high-magnification event approximately 24 hr prior to peak magnification. As a result, the planetary signal at the peak of this light curve was observed by 20 different telescopes, which is the largest number of telescopes to contribute to a planetary discovery to date. The microlensing model for this event indicates a planet-star mass ratio of q = (3.95 +/- 0.02) x 10(-4) and a separation of d = 0.97537 +/- 0.00007 in units of the Einstein radius. ...
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