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Early time optical polarization of GRB Afterglows: GRB 060418 and GRB 090102
I. A. Steele, C. G. Mundell, R. J. Smith +2
RINGO on the Liverpool Telescope has now measured the optical polarization of GRB 060418 (where a 2 sigma upper limit of P<8% was determined) and GRB 090102 (when a detection of P…
A transit timing analysis of seven RISE light curves of the exoplanet system HAT-P-3
N. P. Gibson, D. Pollacco, S. Barros +9
We present seven light curves of the exoplanet system HAT-P-3, taken as part of a transit timing program using the RISE instrument on the Liverpool Telescope. The light curves are…
Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050
V. Batista, Subo Dong, A. Gould +93
We analyze OGLE-2007-BLG-050, a high magnification microlensing event (A ~ 432) whose peak occurred on 2 May, 2007, with pronounced finite-source and parallax effects. We compute p…
Evidence for energy injection and a fine-tuned central engine at optical wavelengths in GRB 070419A
A. Melandri, C. Guidorzi, S. Kobayashi +13
We present a comprehensive multiwavelength temporal and spectral analysis of the FRED GRB 070419A. The early-time emission in the -ray and X-ray bands can be explained by a cent…
Optical flashes, reverse shocks and magnetization
Andreja Gomboc, Shiho Kobayashi, Carole G. Mundell +8
Despite the pre-Swift expectation that bright optical flashes from reverse shocks would be prevalent in early-time afterglow emission, rapid response observations show this not to…
A systematic fitting scheme for caustic-crossing microlensing events
N. Kains, A. Cassan, K. Horne +42
We outline a method for fitting binary-lens caustic-crossing microlensing events based on the alternative model parameterisation proposed and detailed in Cassan (2008). As an illus…