758 citations · 3.4k across the 65 of their papers we have counts for
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The ASTRA project: a doorway to future astrometry
Mario Gai, Zhaoxiang Qi, Mario G. Lattanzi +15
Astrometric Science and Technology Roadmap for Astrophysics (ASTRA) is a bilateral cooperation between China and Italy with the goal of consolidating astrometric measurement concep…
Visual binary stars with partially missing data: Introducing multiple imputation in astrometric analysis
Ruben M. Claveria, Rene A. Mendez, Jorge F. Silva +1
Partial measurements of relative position are a relatively common event during the observation of visual binary stars. However, these observations are typically discarded when esti…
Optimality of the Maximum Likelihood estimator in Astrometry
Sebastian Espinosa, Jorge F. Silva, Rene A. Mendez +2
The problem of astrometry is revisited from the perspective of analyzing the attainability of well-known performance limits (the Cramer-Rao bound) for the estimation of the relativ…
Analysis of the Bayesian Cramer-Rao lower bound in astrometry: Studying the impact of prior information in the location of an object
Alex Echeverria, Jorge F. Silva, Rene A. Mendez +1
Context. The best precision that can be achieved to estimate the location of a stellar-like object is a topic of permanent interest in the astrometric community. Aims. We analyse b…
Performance analysis of the Least-Squares estimator in Astrometry
Rodrigo A. Lobos, Jorge F. Silva, Rene A. Mendez +1
We characterize the performance of the widely-used least-squares estimator in astrometry in terms of a comparison with the Cramer-Rao lower variance bound. In this inference contex…
Analysis of the Cramer-Rao lower uncertainty bound in the joint estimation of astrometry and photometry
Rene A. Mendez, Jorge F. Silva, Rodrigo Orsotica +1
In this paper we use the Cramer-Rao lower uncertainty bound to estimate the maximum precision that could be achieved on the joint simultaneous (or 2D) estimation of photometry and…
Analysis and interpretation of the Cramer-Rao lower-bound in astrometry: One dimensional case
Rene Mendez, Jorge Silva, Rodrigo Lobos
In this paper we explore the maximum precision attainable in the location of a point source imaged by a pixel array detector in the presence of a background, as a function of the d…