Keith Horne

TL;DR: In this article, an optimal spectrum extraction procedure is described, and examples of its performance with CCD data are presented, which delivers the maximum possible signal-to-noise ratio while preserving spectrophotometric accuracy.

TL;DR: The SuperWASP cameras at the Observatorio del Roque de los Muchachos on the island of La Palma in the Canary Islands, and at the Sutherland Station of the South African Astronomical Observatory have a field of view of some 482 deg2 with an angular scale of 13 as mentioned in this paper.

TL;DR: Reverberation mapping is a proven technique that is used to measure the size of the broad emission-line region and central black hole mass in active galactic nuclei as discussed by the authors, and more ambitious reverberation mapping programs that are well within the capabilities of the Hubble Space Telescope could allow us to determine the nature and flow of line-emitting gas in active nuclei and to assess accurately the systematic uncertainties in reverberation-based blackhole mass measurements.

TL;DR: The detection of a cool, sub-Neptune-mass planets may be more common than gas giant planets, as predicted by the core accretion theory, and is suggested to name OGLE-2005-BLG-390Lb, indicating a planetary mass companion to the lens star of the microlensing event.

TL;DR: It is concluded that stars are orbited by planets as a rule, rather than the exception, and that of stars host Jupiter-mass planets 0.5–10 au (Sun–Earth distance) from their stars.