Graduate School in Physics and Astrophysics ------------------------------------------- ANNUAL REPORT ------------------------------------------- Fill with a text editor (without TAB or formatting) Repeat fields for each course as necessary. ------------------------------------------- name: Gloria Guilluy email: gloria.guilluy@edu.unito.it ciclo: XXXIII year completed (1,2 or 3): 3 supervisor: Alessandro Sozzetti ------------------------------------------- SUMMER SCHOOLS, INTERNATIONAL SCHOOLS (only those attended in the current year) title: ARES (Ariel Retrieval of Exoplanets School): ARIEL School place: Biarritz, France webpage: http://www.iap.fr/useriap/beaulieu/ARIEL/ARIEL-School2019-index.html days: 10 (27 september - 6 October, 2019 ) talk or poster (Y/N): Y ------------------------------------------- CONFERENCES, WORKSHOP (only those attended in the current year) title: Exoplanet III place: online for COVID-19 webpage: https://hdconfsys.zah.uni-heidelberg.de/exoplanets3/index.php days: 5 (27-31 July 2020) talk (Y/N): N poster (Y/N): N title: 16th GAPS progress meeting place: online for COVID-19 webpage: https://indico.ict.inaf.it/event/1062/ days: 3 (04-06 May 2020) talk (Y/N): Y poster (Y/N): N title: ARIEL:Science, Mission & Community 2020 conference place: ESA/ESTEC, Noordwijk (The Netherlands) webpage: https://www.cosmos.esa.int/web/ariel/programme days: 3 (14-16 January 2020) talk (Y/N): Y poster (Y/N): N title: 15th GAPS meeting place: INAF - Astrophysical Observatory of Catania (Italy) webpage: https://indico.ict.inaf.it/event/940/overview days: 3 (4-6 December 2019) talk (Y/N): Y poster (Y/N): N title: Congresso Nazionale di Astrochimica e Astrobiologia (proto-) planetaria place: Castello di Duino, Trieste (Italy) webpage: https://indico.ict.inaf.it/event/793/overview days: 3 (21-23 October 2019) talk (Y/N): Y poster (Y/N): N ------------------------------------------- VISITS AND STAGES (only those done in the current year ) institution: Telescopio Nazionale Galileo place: Roque de Los Muchachos Astronomical Observatory 38787 Garafia, TF - Spain starting date: 15-11 days: 7 days (15-21 November 2019) for an observing run of 5 nights (16-17-18-19-20 November 2019) institution: Unversity of Amsterdam place: Online due to COVID-19 Purpose of the visit: talk Exoplanets and Disks Meeting ad Amsterdam (online) starting date: 28/4 days: if there was no COVID-19 my talk would be accompanied by a visit to the researcher Lorenzo Pino with whom I work --------------------------------------------------- Research activity/Publications in the current year (max characters 2500) During this 3rd year of my PhD, I carried on a study -started during my 2nd PhD year- on the upper atmosphere of HD 189733b in search of helium (Guilluy et al. 2020). Helium is indeed an excellent tracer for atmospheric evaporation and expansion. By analyzing 5 transits of HD 189733b gathered with the GIARPS (GIANO-B, in the near-infrared -NIR-,+ HARPS-N, in the visible band -VIS-) observing mode of the Telescopio Nazionale Galileo, we detected a helium signal due to the extended atmosphere of HD 189733b. Then, thanks to the comparative analysis of the helium line, in the NIR, and other diagnostics of stellar activity in the VIS, we separated the true planetary helium signal from the contamination due to stellar activity. Meanwhile, I continued to analyse the lower atmospheric layers by looking for molecules. On one hand, I contributed to a paper we recently submitted to Nature (Giacobbe et al submitted), where we detected 6 molecules in the atmosphere of a Hot Jupiter. On the other hand, I am working on two warm and low-density giants, where we detected some molecules whose presence is not expected by thermochemical equilibrium models. As this is the first evidence of disequilibrium chemistry in an exo-atmosphere, we will try to submit this work to Science. I will co-sign this paper as 2nd author. Alongside my HRS studies, I have also started to characterize the exo-atmospheres at low-spectral resolution (LRS), i.e. to extract planetary spectra from Hubble Space Telescope data and to analyse them (Edwards et al 2020, Skaf et al 2020, Pluriel et al 2020, Guilluy et al 2020 submitted to AAS). Recently, I have also tried to combine HRS with LRS data. I studied these two techniques separately and investigated the benefits that one can have from the other (Guilluy et al submitted to Experimental Astronomy). Lastly, I am working also within the Space Infrared Telescope for Cosmology and Astrophysics (SPICA) Exoplanets Subgroup, to define a program for the mission, as an input to the Phase-A Assessment Study Report. Giacobbe, .. ,Guilluy et al submitted to Nature Guilluy et al 2020 submitted to Experimental Astronomy Guilluy et al 2020 submitted to AAS Pluriel, .. , Guilluy et al DOI: 10.3847/1538-3881/aba000 Skaf, .. , Guilluy et al DOI: 10.3847/1538-3881/ab94a3 Edwards, .. , Guilluy et al DOI: 10.3847/1538-3881/ab9225 Guilluy et al DOI: 10.1051/0004-6361/202037644 Gandhi, .. , Guilluy et al DOI: 10.1093/mnras/staa981 G. Guilluy et al EPSC-DPS Joint Meeting 2019