8.6k citations · 16k across the 52 of their papers we have counts for
52 papers
Computational challenges of 21st century Global Astrometry
Beatrice Bucciarelli
Major advancements in space science and detector technology brought about a revolution in global astrometry, the science of measuring distances and motions of stars in the Milky Wa…
The Problem of the Global Astrometric Sphere Reconstruction in Astrometry -- Issues and Approaches
Alberto Vecchiato, Alexey Butkevich, Mario Gai +3
In this contribution we give a brief account of the problem of the Global Astrometric Sphere Reconstruction in Astrometry, with particular reference to the Gaia and Gaia-like astro…
The Gaia AVU-GSR solver: a CPU + GPU parallel code toward Exascale systems
Valentina Cesare, Ugo Becciani, Alberto Vecchiato +3
The solver module of the Astrometric Verification Unit - Global Sphere Reconstruction (AVU-GSR) pipeline aims to find the astrometric parameters of stars in the Milky…
Tracing the Galactic Disk with Planetary Nebulae using Gaia DR3
B. Bucciarelli, L. Stanghellini
We study the population of Galactic planetary Nebulae (PNe) and their central stars (CSs) through the analysis of their heliocentric distances and Galactic distribution. Distances…
The MPI + CUDA Gaia AVU-GSR Parallel Solver Toward Next-generation Exascale Infrastructures
Valentina Cesare, Ugo Becciani, Alberto Vecchiato +4
We ported to the GPU with CUDA the Astrometric Verification Unit-Global Sphere Reconstruction (AVU-GSR) Parallel Solver developed for the ESA Gaia mission, by optimizing a previous…
A new kinematic model of the Galaxy: analysis of the stellar velocity field from Gaia Data Release 3
V. S. Akhmetov, B. Bucciarelli, M. Crosta +4
This work presents the results of a kinematic analysis of the Galaxy that uses a new model as applied to the newest available Gaia data. We carry out the Taylor decomposition of th…