P007
Cool Stars and Their Influence on (Exo)Planetary Habitability
Session ID#: 158764
Session Description:
The presence of strong stellar winds and/or extreme stellar particle events as well as coronal mass ejections may destroy atmospheric biosignatures and could prevent the creation and development of life. Thus, detailed knowledge of the astrospheric particle- and radiation environment and its impact on exoplanetary atmospheres is mandatory to study exoplanetary habitability.
The session brings together scientists from all fields of research that are related to solar, astrophysical, and exoplanetary sciences. It will allow the sharing of expertise amongst researchers working on different aspects of this interdisciplinary scientific field, allowing showcases of recent advancements in the field of specialization. The session aims to stimulate discussions on how individual disciplines can share their knowledge and benefit from each other.
We solicit contributions related but not limited to:
- Modeling stellar astrospheres and the corresponding energy-dependent CR flux
- Modeling the environment of close-in exoplanets around cool stars, in particular, modeling of mass-loss rates, angular momentum loss rates, the magnetic field configuration and the density and velocity of the stellar winds of G-, K- and M-stars
- Modeling stellar CMEs
- Evaluation and quantification of the solar UV-, X-ray, and energetic particle flux relationships and their extension to G-, K-, and M-dwarfs
- The imprint of the stellar radiation field by modeling the magnetospheric transport and particle interactions within (exo)planetary atmospheres
- Atmospheric modeling studies of climate and (biosignature) photochemistry and the influence of stellar activity
Index Terms:
2104 Cosmic rays [INTERPLANETARY PHYSICS]
5210 Planetary atmospheres, clouds, and hazes [PLANETARY SCIENCES: ASTROBIOLOGY]
6296 Extra-solar planets [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
7984 Space radiation environment [SPACE WEATHER]
Primary Convener: Konstantin Herbst, University of Kiel, Kiel, Germany
Conveners: L Grenfell, German Aerospace Center DLR Berlin, Institute of Planetary Research, Berlin, Germany and Athanasios Papaioannou, National Observatory of Athens, Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, Athens, Greece
Learning from the Sun-as-a-Star: New Empirical Model of XUV Emission from Cool Dwarfs (1070544)
Shin Toriumi, JAXA Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Sagamihara, Japan, Kosuke Namekata, National Astronomical Observatory of Japan, Mitaka, Japan, Vladimir Airapetian, SEEC/NASA Goddard Space Flight Center & American University, DC, SEEC, Greenbelt, MD, United States and Yuta Notsu, University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics (LASP), Boulder, United States; Tokyo Institute of Technology, Tokyo, Japan
CH3Br: A Novel Methylated Biosignature for Exoplanets (1092732)
Michaela Leung, University of California Riverside, Riverside, CA, United States, Edward Schwieterman, University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States, Mary N. Parenteau, NASA Ames Research Center, Moffett Field, United States and Thomas Fauchez, NASA GSFC, American University, Washington, United States
Plasma-neutral Interactions as a Method of Constraining Stable Rocky Exoplanet Atmospheres (1116114)
Anthony Sciola1, Kathleen E. Mandt2, Jacob Lustig-Yaeger1, Kareem Sorathia2 and Viacheslav G Merkin2, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (2)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Stellar Energetic Particle Transport in the Turbulent and CME-disrupted Stellar Wind of AU Microscopii (1138007)
Federico Fraschetti1, Julián D Alvarado Gómez2, Jeremy J Drake3, Ofer Cohen4 and Cecilia Garraffo3, (1)University of Arizona, Tucson, AZ, United States, (2)U. Nacional de Colombia, Bogota, Colombia, (3)Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, United States, (4)Harvard-Smithsonian CfA, Cambridge, MA, United States
3D Modelling of the Impacts of Stellar Flares and Coronal Mass Ejections on Terrestrial Earth-like Exoplanets (1175195)
Robert Ridgway1, Maria Zamyatina2, Nathan Mayne2, James Manners3, Francis H Lambert1 and Eric Hébrard2, (1)University of Exeter, College of Engineering, Mathematics and Physical Sciences, Exeter, EX4, United Kingdom, (2)University of Exeter, College of Engineering, Mathematics and Physical Sciences, Exeter, United Kingdom, (3)Met Office Hadley center for Climate Change, Exeter, United Kingdom
Living With the Young Sun: First Results of HST-XMM Newton and TESS Coordinated Observations of Young Suns and Modeling of Their Coronae, Winds and Eruptive Events (1178457)
Vladimir Airapetian1, Meng Jin2, Junxiang Hu3, Kevin France4, Manuel Guedel5, Sudeshna Boro Saikia5, Theresa Lueftinger6 and David Soderblom7, (1)NASA Goddard Space Flight Center, Heliophysics Division, Greenbelt, MD, United States, (2)SETI Institute, Mountain View, CA, United States, (3)University of Alabama in Huntsville, Department of Space Sciences and CSPAR, Huntsville, AL, United States, (4)Laboratory for Atmospheric and Space Physics, Astrophysical and Planetary Sciences, Boulder, United States, (5)University of Vienna, Vienna, Austria, (6)University of Vienna, Department of Astronomy, Vienna, Austria, (7)Space Telescope Science Institute, Baltimore, United States
