A Low-Mass Planet with a Possible Sub-Stellar-Mass Host in Microlensing Event MOA-2007-BLG-192

@article{Bennett2008ALP,
  title={A Low-Mass Planet with a Possible Sub-Stellar-Mass Host in Microlensing Event MOA-2007-BLG-192},
  author={D. Bennett and I. Bond and A. Udalski and T. Sumi and F. Abe and A. Fukui and K. Furusawa and J. Hearnshaw and S. Holderness and Y. Itow and K. Kamiya and A. Korpela and P. Kilmartin and W. Lin and C. Ling and K. Masuda and Y. Matsubara and N. Miyake and Y. Muraki and M. Nagaya and T. Okumura and K. Ohnishi and Y. Perrott and N. Rattenbury and T. Sako and To. Saito and S. Sato and L. Skuljan and D. Sullivan and W. Sweatman and P. Tristram and P. Yock and M. Kubiak and M. Szymański and G. Pietrzyński and I. Soszyński and O. Szewczyk and L. Wyrzykowski and K. Ulaczyk and V. Batista and J. Beaulieu and S. Brillant and A. Cassan and P. Fouqu{\'e} and P. Kervella and D. Kubas and J. Marquette},
  journal={The Astrophysical Journal},
  year={2008},
  volume={684},
  pages={663-683}
}
We report the detection of an extrasolar planet of mass ratio q~2×10-4 in microlensing event MOA-2007-BLG-192. The best-fit microlensing model shows both the microlensing parallax and finite source effects, and these can be combined to obtain the lens masses of M=0.060+0.028-0.021 Msolar for the primary and m=3.3+4.9-1.6 M? for the planet. However, the observational coverage of the planetary deviation is sparse and incomplete, and the radius of the source was estimated without the benefit of a… Expand
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