Exploració per tema "Astrometria"
Ara es mostren els items 1-8 de 8
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Feasibility study of the PEC compressor in HDFS file format
(Universitat Politècnica de Catalunya, 2011-11-15)
Projecte/Treball Final de Carrera
Accés obertEnglish: Improvement of the astrometric format GBIN using HFG5+ PEC. -
Gaia DR2 white dwarfs in the Hercules stream
(EDP Sciences, 2019-09-01)
Article
Accés obertWe analyzed the velocity space of the thin- and thick-disk Gaia white dwarf population within 100 pc by searching for signatures of the Hercules stellar stream. We aimed to identify objects belonging to the Hercules stream, ... -
Hubble Space Telescope survey of Magellanic Cloud star clusters: photometry and astrometry of 113 clusters and early results
(EDP Sciences, 2023-04-01)
Article
Accés obertIn the past few years, we have undertaken an extensive investigation of star clusters and their stellar populations in the Large and Small Magellanic Clouds (LMC and SMC) based on archival images collected with the Hubble ... -
Implementation of a random forest machine learning algorithm in the context of Gaia space mission
(Universitat Politècnica de Catalunya, 2018-02-14)
Projecte Final de Màster Oficial
Accés obertGaia space astrometry mission will scan about one billion stars an average of 70 times each over five years. During the mission time repeated astrometric, photometric and spectroscopic observations of the entire sky down ... -
Payload data handling, telemetry and data compression systems for Gaia.
(Universitat Politècnica de Catalunya, 2005-09-26)
Tesi
Accés obertGaia, la nova missió astromètrica de la ESA amb un llançament previst pel 2011, observarà més de mil milions d'estels i altres objectes amb una exactitud sense precedents. Els seus ambiciosos objectius desbanquen completament ... -
Statistical analysis of a massive astronomical cross-matching process
(Universitat Politècnica de Catalunya, 2016-04-08)
Projecte/Treball Final de Carrera
Accés obertGaia is an ESA mission to create a 3D map of our Galaxy. The main objective is to provide positional measurements for about one billion stars. Gaia will scan the same sky region about 85 times in different directions. This ... -
TESS first look at evolved compact pulsators: Known ZZ Ceti stars of the southern ecliptic hemisphere as seen by TESS
(EDP Sciences, 2020-06-01)
Article
Accés obertContext. We present our findings on 18 previously known ZZ Ceti stars observed by the TESS space telescope in 120 s cadence mode during the survey observation of the southern ecliptic hemisphere. Aims. We focus on the ... -
The Gaia white dwarf population within 100 pc of the Sun
(2018)
Text en actes de congrés
Accés obertThe recent Gaia Data Release 2 has provided an unprecedented sample of the local white dwarf population. The high astrometric resolution and the photometry provided by Gaia allows to build a clean magnitude-color diagram ...