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Martina Baratella (Università degli studi di Padova)06/05/2020, 14:30
The detailed characterisation of stars is important in many astrophysical fields. In particular, knowing with great precision the atmospheric parameters and chemical composition of planet hosting stars allows to fully characterise exoplanets and address a number of aspects, e.g. the planet-metallicity relation.
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In our work, we performed a precise determination of the atmospheric parameters... -
Jesus Maldonado Prado (Istituto Nazionale di Astrofisica (INAF))06/05/2020, 14:50
Methods to derive in a consistent way stellar abundances of low-mass stars from optical spectra are still missing. In this contribution we present a first attempt to fill this gap. Our methodology is based on the use of principal componen analysis and sparse Bayesian’s fitting methods. A set of M dwarfs in binary systems orbiting around an FGK primary was observed and is used to training our...
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Serena Benatti (Istituto Nazionale di Astrofisica (INAF))06/05/2020, 15:10
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Dr Riccardo Claudi06/05/2020, 15:30
In questo contributo è presentato lo stato dello studio dell'attività delle stelle ospite di pianeti transitanti. Sono trattati sistemi osservati duranti GAPS1.0 e confrontati con altri sistemi transitanti e stelle di campo.
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Giancluca Cracchiolo06/05/2020, 15:50
In my study, I analyze the impact of stellar spots on ARIEL observations and their effects on the extraction of the planetary signal from primary transit observations. I develop a method to determine the size and temperature of the spots by using the out-of-transit observations and I define a procedure to reliably extract the planetary spectrum in the presence of spots.
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ALL06/05/2020, 16:10
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