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NEW: E' assolutamente vietato inserire il nome del relatore al posto del tesista per "bypassare" l'inserimento in anagrafica. Le tesi così formate saranno ritenute invalide ed eliminate dal sistema

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Cercare il tesista per cognome, cliccando sul pulsante apposito, ed eventualmente inserirlo tramite il link proposto. Sono richieste le informazioni fondamentali di anagrafica e tipo/numero di documento di riconoscimento
Ultimo aggiornamento 31 gen 2018
Autore
Giuseppe D'Ago
Sesso M
Esperimento
Tipo Dottorato
Destinazione dopo il cons. del titolo Post-dottorato (Italia)
Università Universita' Di Salerno
Strutt.INFN/Ente
Salerno
Titolo An Insight into Gravitational Microlensing and the Search for Exoplanetary Systems
Abstract Although, since its formulation in the early 1900, gravitational lensing was underestimated and poorly investigated, in the last thirty years the observation of different phenomena related to gravitational lenses have revealed the real potentiality of the study of the effects of gravity on the light. We present several results connected to gravitational lensing and microlensing searches for exoplanets. We have developed the first complete catalogue of the lightcurves arising from the microlensing by equal-mass binary systems. The work was aimed at probing the parameter space of the equal-mass binary lens and at classifying the variety of lightcurve morphologies which are theoretically observable when a source is magnified by such a lens. The final catalogue represents a unique tool for scientists working on modelling microlensing events, since it offers the possibility to set a reasonable and very efficient initial condition choice for the parameter space investigation. We then present the results of the analysis of an event from the 2013 observing season. OGLE-2013-BLG-1394 is an event we followed from our observatory and for which I have led the modelling. By also making use of datasets from other telescopes, we found that the event was due to a binary source magnified by a single lens. High order effects due to the Earth motion (parallax) and to the relative motion between the two sources (xallarap) had to be taken into account for the correct fitting of the lightcurve. Additionally, a brief summary of some exoplanets, characterised also by mean of transits observations which have been personally conducted by this author, will be presented.
Anno iscrizione 2011
Data conseguimento 17 apr 2015
Luogo conseguimento Fisciano
Relatore/i
Valerio Bozza   
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