A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406
Abstract
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 planet orbiting a early M-type star. The distance to the lens is \ kpc and the projected separation between the host star and its planet at the time of the event is 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.
Keywords
Cite
@article{arxiv.1310.2428,
title = {A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406},
author = {Y. Tsapras and J. -Y. Choi and R. A. Street and C. Han and V. Bozza and A. Gould and M. Dominik and J. -P. Beaulieu and A. Udalski and U. G. Jørgensen and T. Sumi and D. M. Bramich and P. Browne and K. Horne and M. Hundertmark and S. Ipatov and N. Kains and C. Snodgrass and I. A. Steele and K. A. Alsubai and J. M. Andersen and S. Calchi Novati and Y. Damerdji and C. Diehl and A. Elyiv and E. Giannini and S. Hardis and K. Harpsøe and T. C. Hinse and D. Juncher and E. Kerins and H. Korhonen and C. Liebig and L. Mancini and M. Mathiasen and M. T. Penny and M. Rabus and S. Rahvar and G. Scarpetta and J. Skottfelt and J. Southworth and J. Surdej and J. Tregloan-Reed and C. Vilela and J. Wambsganss and J. Skowron and R. Poleski and S. Kozłowski and Łukasz Wyrzykowski and M. K. Szymański and M. Kubiak and P. Pietrukowicz and G. Pietrzyński and I. Soszyński and K. Ulaczyk and M. D. Albrow and E. Bachelet and R. Barry and V. Batista and A. Bhattacharya and S. Brillant and J. A. R. Caldwell and A. Cassan and A. Cole and E. Corrales and Ch. Coutures and S. Dieters and D. Dominis Prester and J. Donatowicz and P. Fouqué and J. Greenhill and S. R. Kane and D. Kubas and J. -B. Marquette and J. Menzies and C. P`ere and K. R. Pollard and D. Wouters and G. Christie and D. L. DePoy and S. Dong and J. Drummond and B. S. Gaudi and C. B. Henderson and K. H. Hwang and Y. K. Jung and A. Kavka and J. -R. Koo and C. -U. Lee and D. Maoz and L. A. G. Monard and T. Natusch and H. Ngan and H. Park and R. W. Pogge and I. Porritt and I. -G. Shin and Y. Shvartzvald and T. G. Tan and J. C. Yee and F. Abe and D. P. Bennett and I. A. Bond and C. S. Botzler and M. Freeman and A. Fukui and D. Fukunaga and Y. Itow and N. Koshimoto and C. H. Ling and K. Masuda and Y. Matsubara and Y. Muraki and S. Namba and K. Ohnishi and N. J. Rattenbury and To. Saito and D. J. Sullivan and W. L. Sweatman and D. Suzuki and P. J. Tristram and N. Tsurumi and K. Wada and N. Yamai and P. C. M. Yock A. Yonehara},
journal= {arXiv preprint arXiv:1310.2428},
year = {2015}
}
Comments
9 pages, 4 figures, accepted by ApJ