167 citations · 987 across the 12 of their papers we have counts for
12 papers
The Pristine Survey IV: Approaching the Galactic metallicity floor with the discovery of an ultra metal-poor star
Else Starkenburg, David S. Aguado, Piercarlo Bonifacio +22
The early Universe presented a star formation environment that was almost devoid of heavy elements. The lowest metallicity stars thus provide a unique window into the earliest Gala…
The Pristine survey III: Spectroscopic confirmation of an efficient search for extremely metal-poor stars
K. Youakim, E. Starkenburg, D. S. Aguado +13
The Pristine survey is a narrow-band, photometric survey focused around the wavelength region of the Ca II H & K absorption lines, designed to efficiently search for extremely meta…
Shear measurement bias I: dependencies on methods, simulation parameters and measured parameters
Arnau Pujol, Florent Sureau, Jerome Bobin +3
We present a study of the dependencies of shear bias on simulation (input) and measured (output) parameters, noise, point-spread function anisotropy, pixel size, and the model bias…
GREAT3 results I: systematic errors in shear estimation and the impact of real galaxy morphology
Rachel Mandelbaum, Barnaby Rowe, Robert Armstrong +40
We present first results from the third GRavitational lEnsing Accuracy Testing (GREAT3) challenge, the third in a sequence of challenges for testing methods of inferring weak gravi…
The Third Gravitational Lensing Accuracy Testing (GREAT3) Challenge Handbook
Rachel Mandelbaum, Barnaby Rowe, James Bosch +28
The GRavitational lEnsing Accuracy Testing 3 (GREAT3) challenge is the third in a series of image analysis challenges, with a goal of testing and facilitating the development of me…
A simple fitting method (gfit) for galaxy shape measurement in weak lensing surveys
Marc Gentile, Frederic Courbin, Georges Meylan
It is anticipated that the large sky areas covered by planned wide-field weak lensing surveys will reduce statistical errors to such an extent that systematic errors will instead b…