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Faint source star planetary microlensing: the discovery of the cold gas giant planet OGLE-2014-BLG-0676Lb
N. J. Rattenbury, D. P. Bennett, T. Sumi +85
We report the discovery of a planet --- OGLE-2014-BLG-0676Lb --- via gravitational microlensing. Observations for the lensing event were made by the MOA, OGLE, Wise, RoboNET/LCOGT,…
Multiwavelength monitoring and X-ray brightening of Be X-ray binary PSR J2032+4127/MT91 213 on its approach to periastron
Wynn C. G. Ho, C. -Y. Ng, Andrew G. Lyne +5
The radio and gamma-ray pulsar PSR J2032+4127 was recently found to be in a decades-long orbit with the Be star MT91 213, with the pulsar moving rapidly towards periastron. This bi…
The perihelion activity of comet 67P/Churyumov-Gerasimenko as seen by robotic telescopes
Colin Snodgrass, Cyrielle Opitom, Miguel de Val-Borro +13
Around the time of its perihelion passage the observability of 67P/Churyumov-Gerasimenko from Earth was limited to very short windows each morning from any given site, due to the l…
Spectroscopy of candidate electromagnetic counterparts to gravitational wave sources
Iain A Steele, Chris M Copperwheat, Andrzej S Piascik
A programme of worldwide, multi-wavelength electromagnetic follow-up of sources detected by gravitational wave detectors is in place. Following the discovery of GW150914 and GW1512…
On the relationship between circumstellar disc size and X-ray outbursts in Be/X-ray binaries
Itumeleng M. Monageng, Vanessa A. McBride, Malcolm J. Coe +2
We present long term H monitoring results of five Be/X-ray binaries to study the Be disc size variations and their influence on Type II (giant) X-ray outbursts. The work is done…
The First Circumbinary Planet Found by Microlensing: OGLE-2007-BLG-349L(AB)c
D. P. Bennett, S. H. Rhie, A. Udalski +79
We present the analysis of the first circumbinary planet microlensing event, OGLE-2007-BLG-349. This event has a strong planetary signal that is best fit with a mass ratio of $q \a…