A High-Energy View of Exoplanets and their Environments 24−28 May 2021 European Space Astronomy Centre (ESAC) Villafranca del Castillo Madrid, Spain A workshop organised by the European Space Agency XMM-Newton Science Operations Centre ABSTRACT BOOK Oral Communications and Posters Edited by Simone Migliari Organising Committees Scientific Organising Committee Costanza Argiroffi University of Palermo, Italy Mario Guarcello Osservatorio Astronomico di Palermo, Italy Yamila Miguel University of Leiden, The Netherlands James Owen Imperial College London, United Kingdom Katja Poppenhaeger (chair) Leibniz Institute for Astrophysics Potsdam, Germany LuisaRebull CaliforniaInstituteofTechnology,Pasadena, USA Jorge Sanz-Forcada Centro de Astrobiolog´ıa, Villanueva de la Caada, Spain Norbert Schartel (co-chair) European Space Agency, Villanueva de la Caada, Spain Beate Stelzer Universit¨at T¨ubingen, Germany Peter Wheatley University of Warwick, United Kingdom ScottWolk CenterforAstrophysics,Harvard&Smithsonain, Cambridge, USA Aline Vidotto University of Dublin, Ireland PhilippeZarka ObservatoiredeParis-CNRS,Meudon,France Local Organising Committee (XMM-Newton Science Operations Centre) Lucia Ballo Jacobo Ebrero Felix F¨urst Cristina Hernandez Mar´ıa Herranz Simone Migliari (Chair) Richard Saxton Celia Sanchez Norbert Schartel Ivan Valtchanov Contents 1 Invited Speakers 3 Coronal Mass Ejections and Exoplanets: A Numerical Perspective Juli´anD.Alvarado-G´omez . .... 4 Transiting exoplanets as probes of the stellar and planetary environments VincentBourrier .................................... 4 X-ray views of our solar system GraziellaBranduardi-Raymont . ..... 5 Exploring Exoplanets and Their Environments with the James Webb Space Telescope KnicoleCol´on ...................................... 5 Ultraviolet Observations of Exoplanet Host Stars: Recent Results and the Landscape for the Next Two Decades KevinFrance,AllisonYoungblood . ..... 6 The end of the worlds BorisGaensicke ..................................... 6 CHEOPS: CHaracterising ExOPlanet Satellite -following up on known exoplanets KateIsaak,theCHEOPSMissionTeam . ... 7 The histories of the young Sun and the Archean Earth’s atmosphere Colin Johnstone, Helmut Lammer, Kristina Kislyakova, Manuel Scherf, Manuel G¨udel ........................................... 7 Hot Takes on Highly Irradiated Exoplanet Atmospheres LauraKreidberg ..................................... 8 Stellar rotation and its connection to the evolution of hydrogen-dominated atmospheres of exoplanets DariaKubyshkina .................................... 8 Star-planet interactions at young ages GiusiMicela ....................................... 9 Stellar coronae and the harsh environment where hot Jupiters live IgnazioPillitteri .................................. ... 9 The PLATO Mission HeikeRauer ....................................... 10 Searching Near and Far: Transits and Transients from the Transiting Exoplanets Survey Satellite (TESS) GeorgeR.Ricker ..................................... 10 3 The eROSITA mission and its X-ray all-sky survey JanRobrade ....................................... 11 Measuring the Magnetic Fields of Exoplanets with Star-Planet Interactions EvgenyaShkolnik .................................... 11 2 Exoplanets Atmospheres 13 Analysis of X-ray driven atmospheric loss on three-planet system K2-136 Jorge FernandezFernandez,Peter Wheatley . ....... 14 Sculpting the sub-Saturn Occurrence Rate via Atmospheric Mass Loss TimHallatt,EveJ.Lee ................................ 14 Effect of Stellar Coronal Mass Ejections (CMEs) and Flares on the atmosphere of HD189733b and its transit signature Gopal Hazra, Aline Vidotto, Stephen Carolan, Carolina VillarrealD’Angelo . 15 Estimating the atmospheric mass loss of V1298 Tau’s four young planets and the role of the host star in planet population studies Laura Ketzer, Katja Poppenhaeger, Matthias Mallonn . .......... 15 Helium observations of exoplanet atmospheres are connected to stellar coronal abun- dances KatjaPoppenhaeger .................................. 16 The high energy environment and atmospheric behavior of K2-25b Keighley Rockcliffe, Elisabeth Newton, Allison Youngblood, Vincent Bourrier, An- drew Mann, Zachory Berta-Thompson, Marcel Agueros . ........ 16 Photoevaporation vs. Core-Powered Mass-Loss JamesRogers,JamesOwen .............................. 17 X-exoplanets coronal models and planet photoevaporation JorgeSanz-Forcada .................................. 17 Using Lyman-Alpha transits to provide insight into atmospheric escape EthanSchreyer,JamesOwen . 18 Radiation-Hydrodynamic multi-species escape from Hot Jupiters Matth¨aus Schulik, Richard Booth, James Owen . ....... 18 3 Stellar Magnetic Activity 19 Starspot modulation and flares of M dwarfs with habitable zones accessible to TESS Mirjam Bogner, Beate Stelzer, Stefanie Raetz . ......... 20 A deep learning approach to understand solar/stellar XUV activity Sudeshna Boro Saikia, Philipp Petersen, Yanina Metodieva, ManuelGuedel . 20 STAR-MELT: STellar AccRetion-Mapping with Emission Line Tomography Justyn Campbell-White, Aurora Sicilia-Aguilar, Soko Matsumura ......... 21 The X-ray activity cycles of young solar-like stars Martina Coffaro, Beate Stelzer, Salvatore Orlando . .......... 21 X-ray Super-Flares From Pre-Main Sequence Stars: Energetics, Frequency, Loop Geom- etry, Comparison With Solar Flares KonstantinGetman,EricFeigelson . ..... 22 XUV Activity Evolution of Main-Sequence Stars and its Relevance for Habitable Planets Manuel Guedel, Colin Johnstone, Nina Nemec, Yanina Metodieva, Michael Bartel, SudeshnaBoroSaikia ................................. 22 Giant white-light flares on fully convective stars occur at high latitudes Ekaterina Ilin, Katja Poppenhaeger, Sarah J. Schmidt, Silva P. J¨arvinen, Elisabeth R. Newton, Juli´an D. Alvarado-G´omez, J. Sebastian Pineda, James R. A. Davenport, MahmoudrezaOshagh,IlyaIlyin . 23 Bright in the UV but Faint in X-rays: Young Late-type Stars, or Main Sequence Im- posters? Joel Kastner, Attila Varga, Matthieu Chalifour, Alex Binks, Germano Sacco, David Rodriguez, David Principe, Simon Murphy, Kristina Punzi . ........... 23 Probing activity and rotation of M dwarfs with X-rays and photometric timeseries Enza Magaudda, Beate Stelzer, Stefanie R¨atz, Kevin R. Covey, Sean P. Matt, AlexanderScholz .................................... 24 An Updated X-ray Activity-Rotation Relation in Low-Mass Stars in Praesepe and the Hyades Alejandro N´u˜nez, Marcel Ag¨ueros, Stephanie Douglas, Rayna Rampalli, Jason Cur- tis ............................................. 24 Simultaneous multi-wavelength observation of flares on highly active M dwarf: EV Lac- erate Rishi Paudel, Thomas Barclay, Joshua Schlieder, Elisa Quintana, Emily Gilbert, Laura Vega, Allison Youngblood, Michele Silverstein, Teresa Monsue, Daniel Huber 25 The Far Ultraviolet M-dwarf Evolution Survey: The Rotational Evolution of High-Energy Emissions J. Sebastian Pineda, Allison Youngblood, Kevin France . ........... 25 Rapidly Rotating Pre-main-sequence M Dwarfs with Highly Structured Light Curves Luisa Rebull, John Stauffer, Lynne Hillenbrand, Ann Marie Cody ......... 26 X-ray emission from ultracool dwarfs BeateStelzer ....................................... 26 The Orion Radio All-Stars: High-energy processes in YSOs with the VLA, ALMA and the VLBA JaimeVargas-Gonz´alez,JanForbrich . ....... 27 4 Star-Planet Interations 29 Role of Star Planet Interactions in the Observed X-Ray Activity of HD179949 Anshuman Acharya, Vinay Kashyap, Kulinder Pal Singh, StevenSaar ....... 30 Star-planet Interactions in AU Mic b: High Energy Irradiation vs Strong Stellar Winds Stephen Carolan, Aline Vidotto, Peter Plavchan, Carolina Villarreal D’Angelo, GopalHazra ....................................... 30 Destination exoplanet: Habitability conditions influenced by stellar winds properties JudyJ.Chebly ...................................... 31 Exoplanet Modulation of Stellar Coronal Radio Emission Ofer Cohen, Sofia Mouscho, Alex Glocer, Igor Sokolov, Tsevi Mazeh, Jeremy Drake, CeciliaGarraffo,JulianAlvarado-Gomez . ....... 31 Hot Jupiters accreting onto their parent stars: effects on the stellar activity SalvatoreColombo,IgnazioPillitteri . ......... 32 A search of planet companions of white dwarfs with XMM-Newton S. Estrada-Dorado, J. A. Toal´a, M. A. Guerrero, Y.-H. Chu . ........... 32 MHD Effects of the Stellar Wind on Observations of Escaping Exoplanet Atmospheres Laura Harbach, Sofia Moschou, Cecilia Garraffo, Jeremy Drake, Juli´an Alvarado- G´omez, Ofer Cohen, Fraschetti Federico . ........ 33 INCREASE - A model suite to study the INflucence of Cosmic Rays on Exoplanetary AtmoSpherEs Konstantin Herbst, John Lee Grenfell, Markus Scheucher, Miriam Sinnhuber, Fabian Wunderlich ........................................ 33 Tidal star-planet interaction revealed by its impact on stellar activity Nikoleta Ilic, Katja Poppenhaeger, S. Marzieh Hosseini . ............ 34 Planet-induced radio emission from the coronae of M dwarfs Robert Kavanagh, Aline Vidotto, Baptiste Klein, Moira Jardine, Jean-Francois Do- nati, D´ualta OFionnag´ain´ ............................... 34 The impact of time-dependent stellar activity on the atmospheric chemistry and observ- ability of exoplanets AmyLouca,YamilaMiguel,Shang-MinTsai . ..... 35 Galactic cosmic ray propagation through M dwarf astrospheres AmandaMesquita,DonnaRodgers-Lee . 35 A statistical search for Star-Planet Interaction in the UltraViolet using GALEX MayankNarang,GayathriViswanath,ManojP