Search results for " Satellite"

showing 5 items of 155 documents

A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251

2013

We present the analysis of the gravitational microlensing event OGLE-2011-BLG-0251. This anomalous event was observed by several survey and follow-up collaborations conducting microlensing observations towards the Galactic Bulge. Based on detailed modelling of the observed light curve, we find that the lens is composed of two masses with a mass ratio q=1.9 x 10^-3. Thanks to our detection of higher-order effects on the light curve due to the Earth's orbital motion and the finite size of source, we are able to measure the mass and distance to the lens unambiguously. We find that the lens is made up of a planet of mass 0.53 +- 0.21,M_Jup orbiting an M dwarf host star with a mass of 0.26 +- 0.…

planets and satellites: detection010504 meteorology & atmospheric sciencesSatellitesbulge [Galaxy]FOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsDiscoveryGravitational microlensing01 natural sciencesGalaxy: bulgeEinstein radiusLensgravitational lensing: weakSettore FIS/05 - Astronomia e AstrofisicaPlanetSnow0103 physical sciencesgravitational lensing; weak; planets and satellites; detection; planetary systems; Galaxy; bulgegravitational lensing: weak; planets and satellites: detection; planetary systems; Galaxy: bulgeBinaryQB Astronomy010303 astronomy & astrophysicsplanetary systemsAstrophysics::Galaxy Astrophysics0105 earth and related environmental sciencesQBPhysicsEarth and Planetary Astrophysics (astro-ph.EP)Giant planetSystemsSearchAstronomy and AstrophysicsRadiusFrequencyPlanetary systemMass ratioMassLight curveStarsAlgorithmdetection [Planets and satellites]Planetary systemsSpace and Planetary ScienceDwarfAstrophysics::Earth and Planetary Astrophysicsweak [Gravitational lensing]Astrophysics - Earth and Planetary AstrophysicsAstronomy and Astrophysics
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Le partage des risques dans les contrats de location de transpondeurs

2007

risques à la charge de l'exploitant du satellite[SHS.DROIT]Humanities and Social Sciences/Law[SHS.DROIT] Humanities and Social Sciences/LawPartage des risques entre les locataires de transpondeurstranspondeurs préemptibles et non préemptiblesclauses de non responsabilitésgarantie de restauration[ SHS.DROIT ] Humanities and Social Sciences/Law
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A Telemetry, Tracking, and Command Antennas System for Small-Satellite Applications

2019

Circularly polarized (CP) antennas are used in space applications for telemetry tracking and command (TT&amp

small satellitesComputer Networks and CommunicationsFrequency bandTT&amplcsh:TK7800-836002 engineering and technologyTracking (particle physics)circular patchOpticsCircular patch; Circular polarization; Small satellites; TT&CComputer Science::Systems and ControlCTelemetryTelecommunications link0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringCircular polarizationComputer Science::Information TheoryPatch antennaPhysicsbusiness.industryAxial ratio020208 electrical & electronic engineeringlcsh:ElectronicsAstrophysics::Instrumentation and Methods for Astrophysics020206 networking & telecommunicationsHardware and ArchitectureControl and Systems EngineeringPhysics::Space PhysicsSignal Processingcircular polarizationAntenna (radio)businessSmall satelliteElectronics
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Aspecte i prefixació verbal en català antic

2021

The paper examines aspectual and selectional properties of Old Catalan prefixed verbs in comparison with their non prefixed counterparts. We ground our analysis on Talmy’s (1985, 2000) notion of verb framed and satellite framed languages and on Mateu (2002, 2003) and Mateu & Rigau (2002) theory of lexical structure, and we argue that telicity and other aspectual properties associated with prefixed verbs are by effects derived from the semantic value of the prefix together with the lexical structure they give rise to. Taking as a case in point the a- prefix of verbs such as «acórrer», we analyse the prefix as a path which relates a figure (the grammatical subject) to a ground (the argument i…

theory of lexical structurelcsh:Language and LiteratureUNESCO::CIENCIAS DE LAS ARTES Y LAS LETRASLingüísticaFilologíasprefixed verbssatellite framed languagesCatalà anticlcsh:Philology. LinguisticsPrefixació verballcsh:P1-1091old catalan; prefixed verbs; verb framed; satellite framed languages; theory of lexical structure:CIENCIAS DE LAS ARTES Y LAS LETRAS [UNESCO]old catalanlcsh:Pverb framed
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An Autonomous System to Take Angular Thermal-Infrared Measurements for Validating Satellite Products

2015

An autonomous system for field land surface temperature (LST) measurements taken at different observation angles was developed to be deployed easily at any conventional meteorological tower station. The system permits ground-truth data to be acquired on a continuous basis, and angularly scans land and sky hemispheres with a single thermal-infrared (TIR) radiometer. This paper describes the autonomous angular system and the methodology to assess ground-truth LST and relative-to-nadir emissivity data from system measurements. Ground-truth LSTs were used to validate satellite-retrieved LST products at two experimental sites (rice crop and shrubland areas). The relative-to-nadir emissivity valu…

thermal-infrared; land surface temperature; angular system; emissivity; satellite product Validation; emissivity anisotropyThermal infraredRadiometerMeteorologyLand surface temperaturesatellite product Validationmedia_common.quotation_subjectthermal-infraredScienceQland surface temperatureangular systemSkyemissivityEmissivityGeneral Earth and Planetary SciencesEnvironmental scienceemissivity anisotropySatelliteAutonomous system (mathematics)Anisotropymedia_commonRemote sensingRemote Sensing
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