. . "2008-12-31+01:00"^^ . "12"^^ . . . . "0"^^ . "http://www.isvav.cz/projectDetail.do?rowId=GP205/06/P135"^^ . "1"^^ . " non-LTE radiative transfer" . . "2015-01-22+01:00"^^ . "0"^^ . "Energie uvoln\u011Bn\u00E1 v koron\u011B p\u0159i slune\u010Dn\u00EDch erupc\u00EDch se z \u010D\u00E1sti transformuje na urychlen\u00ED \u010D\u00E1stic a tyto svazky jsou jedn\u00EDm z mechanism\u016F transportu energie erupce do ni\u017E\u0161\u00EDch vrstev slune\u010Dn\u00ED atmosf\u00E9ry. P\u0159edkl\u00E1dan\u00FD projekt se zab\u00FDv\u00E1 anal\u00FDzou a modelov\u00E1n\u00EDm vlivu svazk\u016F urychlen\u00FDch \u010D\u00E1stic na rentgenovou, optickou a UV emisi. N\u00E1pl\u0148 projektu je rozd\u011Blena do dvou oblast\u00ED: a) anal\u00FDza rentgenov\u00FDch spekter z\u00EDskan\u00FDch dru\u017Eic\u00ED RHESSI (Reuven Ramaty High Energy Solar Spectroscopic Imager) s c\u00EDlem odvodit distribu\u010Dn\u00ED funkce urychlen\u00FDch \u010D\u00E1stic a studovat fyzik\u00E1ln\u00ED procesy ovliv\u0148uj\u00EDc\u00ED jejich urychlov\u00E1n\u00ED a \u0161\u00ED\u0159en\u00ED b) studium vlivu svazk\u016F na spektr\u00E1ln\u00ED profily \u010Dar pomoc\u00ED formalismu non-LTE p\u0159enosu z\u00E1\u0159en\u00ED a numerick\u00FDch simulac\u00ED odezvy atmosf\u00E9ry na \u0161\u00ED\u0159en\u00ED svazku s pou\u017Eit\u00EDm odvozen\u00FDch distribu\u010Dn\u00EDch funkc\u00ED urychlen\u00FDch \u010D\u00E1stic jako vstupn\u00EDch parametr\u016F do simulac\u00ED. Projekt navazuje na v\u00FDsledky z\u00EDskan\u00E9 v m\u00E9 diserta\u010Dn\u00ED pr\u00E1ci a v pr\u016Fb\u011Bhu st\u00E1\u017E\u00ED v zahrani\u010D\u00ED." . "GP205/06/P135" . "solar flares; particle beams; non-LTE radiative transfer; X-rays; spectral lines"@en . . . "2008-04-25+02:00"^^ . . . "solar flares" . . . . "Svazky urychlen\u00FDch \u010D\u00E1stic ve slune\u010Dn\u00EDch erupc\u00EDch" . . . "Analysis of hard X-ray RHESSI spectra demonstrated that photosperic albedio significantly affects determination of electron spectra. In particular, it was shown that low-energy cutoffs found in mean electron distributions are an artefact of albedo. Using"@en . "Energy released in the corona during solar flares is partly transformed into the acceleration of particles. Such beams are one of mechanisms of transporting the flare energy down to the lower layers of the solar atmosphere. The project deals with an analysis and modelling of the influence of the particle beams on X-ray, optical and UV emission. There are two main objectives of the project: a) an analysis of X-ray spectra obtained by the space-based instrument RHESSI (Reuven Ramaty High Energy Solar Spectroscopic Imager) in order to infer the distribution functions of the accelerated particles and to study the physical processes which affect their acceleration and propagation b) a study of the influence of the particle beams on spectral line profiles by the means of\u00A0 formalism of\u00A0 non-LTE radiative transfer and numerical simulations of the atmospheric response to the beam propagation. The inferred distribution functions of the accelerated particles will be used as the input to the"@en . "2006-01-01+01:00"^^ . "Particle beams in solar flares"@en . . " particle beams" . . " X-rays" . "Z anal\u00FDzy rentgenov\u00FDch spekter z RHESSI bylo prok\u00E1z\u00E1no, \u017Ee fotosf\u00E9rick\u00E9 albedo podstatn\u011B ovliv\u0148uje odvozen\u00ED elektronov\u00FDch spekter. Zejm\u00E9na se potvrdilo, \u017Ee tzv. low-energy cutoff v distribuc\u00EDch elektron\u016F je artefaktem zp\u016Fsoben\u00FDm fotosf\u00E9rick\u00FDm albedem. Vl"@cs . . "12"^^ .