Essays about: "Astrometry"
Showing result 1 - 5 of 8 essays containing the word Astrometry.
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1. Combining Hipparcos and Gaia data: Improved Astrometric Calculations With Orvara
University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionenAbstract : Hipparcos and Gaia are two missions intended to catalogue positions and motions of stellar objects. Orvara is a computer program which aims to combine the data from these two missions to calculate Keplerian parameters for stellar systems. READ MORE
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2. Identifying Gravitationally Lensed QSO Candidates with eROSITA
University essay from Uppsala universitet/Observationell astrofysikAbstract : As of June 2020, the first all-sky X-ray survey with the eROSITA instrument aboard the spacecraft Spektr-RG has been completed. A high percentage of the 1.1 million objects included in the survey are expected to be active galactic nuclei (AGN). READ MORE
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3. Simulation of Solar System Objects for the NISP instrument of the ESA Euclid Mission
University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknikAbstract : Euclid is a medium class mission designed to study the geometry of dark universe. It will work in the visible and near infrared imaging & spectroscopy for a lifetime of 6 years down to the magnitude of mAB = 24. READ MORE
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4. The detectability of single- and multiple-planet systems in Gaia data
University essay from Lunds universitet/Astronomi - Genomgår omorganisationAbstract : The all-sky survey of Gaia will generate vast amounts of astrometric data, in which there are expected to be thousands of planets found. Finding a system of $n_\textup{p}$ planets requires fitting of a total $5+7n_\textup{p}$ parameters: five astrometric and seven Keplerian parameters for every planet. READ MORE
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5. Astrometric Lensing - What Gaia can and cannot do
University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisationAbstract : Context: Data from the recently launched astrometric satellite Gaia will be coming in soon with the final data release expected in 2022. This will provide a very precise map of the Galaxy. The Solar system and Galaxy is thought to be filled with invisible bodies (planetesimals, planets, brown dwarfs, neutron stars, black holes, etc. READ MORE