Shedding light on the matter of Abell 781

• Published in: Monthly notices of the Royal Astronomical Society Vol. 437; no. 4; pp. 3578 - 3585
• Main Authors: Wittman, D., Dawson, William, Benson, Bryant
• Format: Journal Article
• Language: English
• Published: London Oxford University Press 01.02.2014
• Subjects: Calibration; Gravity; Red shift; Signal to noise ratio; Stars & galaxies; X-ray astronomy; gravitational lensing: weak; methods: statistical; galaxies: clusters: individual: Abell 781

The galaxy cluster Abell 781 West has been viewed as a challenge to weak gravitational lensing mass calibration, as Cook & dell'Antonio found that the weak lensing signal-to-noise ratio in three independent sets of observations was consistently lower than expected from mass models based on...