Mike Irwin

TL;DR: In this paper, a matched-filter weighting scheme was proposed to further reduce the uncertainty in the distance measurements by incorporating a matched filter weighting method into the model likelihood calculations, where stars are weighted according to their probability of being true object members.

TL;DR: The pipeline architecture being developed to deal with the IR imaging data from WFCAM and VISTA is described, and the primary issues involved are discussed, capable of robustly removing instrument and night sky signatures; monitoring data quality and system integrity; providing astrometric and photometric calibration; and generating photon noise-limited images and astronomical catalogues.

TL;DR: Perlmutter et al. as discussed by the authors presented evidence for a low-mass density/positive cosmological-constant universe that will expand forever, based on observations of a set of 40 high-redshift supernovae.

TL;DR: In this article, projected velocity dispersion profiles for the Draco and Ursa Minor (UMi) dwarf spheroidal galaxies based on 207 and 162 discrete stellar velocities, respectively, were presented.

TL;DR: In this article, the radial velocity measurements of four wide halo binary candidates from the sample in Chaname & Gould (CG04) are presented, which, to date, is the only sample containing a large number of such candidates.