98 citations · 202 across the 11 of their papers we have counts for
3 papers · 1 filter
A review on fundamental bounds and estimators for photometry and astrometry of celestial point sources using array detectors, from first principles
Sebastián Espinosa, Rene A. Mendez, Jorge F. Silva +1
Precise astrometric and photometric measurements of celestial point sources are fundamental to modern astronomy. These measurements, used to determine object positions, motions, an…
The impact of the point spread function fitting radius on photometric uncertainty based on the Fisher information matrix
Sebastian Espinosa, Mario L. Vicuña, Rene A. Mendez +2
In point spread function (PSF) photometry, the selection of the fitting aperture radius plays a critical role in determining the precision of flux and background estimations. Tradi…
Optimal photometry of point sources: Joint source flux and background determination on array detectors -- from theory to practical implementation
Mario L. Vicuña, Jorge F. Silva, Rene A. Mendez +3
In this paper we study the joint determination of source and background flux for point sources as observed by digital array detectors. We explicitly compute the two-dimensional Cra…