Plasma and UV/XUV/X-Ray Reprocessing of planetary atmospheres: What can we expect on young exoplanets?
Project ID:GA19-03314S
Provider:Czech Science Foundation
Period:Jan 01, 2019 - Dec 31, 2021
Recipient -- coordinator:Institute of Physics of the CAS, v. v. i.
-- Ing. Libor Juha CSc.
Co-recepient(s) / PI(s):
Co-investigators from IPPP. Lukeš, M. Člupek, J. Schmidt, R. Dudžák

Aims of the project: The project is dealing with various physical and chemical processes occurring in atmospheres of exoplanets exposed to intense extreme ultraviolet radiation emitted by young stars located in the center of their planetary systems and plasmas created by high-velocity impacts of extraplanetary bodies and atmospheric electrical discharges of a different kind. The explorations will be performed using advanced facilities, devices, diagnostics and experimental layouts combined with the theory and computer simulations, chemical consequences of particular processes (e.g., shock, thermal and blast waves, non-thermal action of energetic photons and charged particles, fast quenching of the hot plasmas by ambient cold gas and surfaces of condensed matter, and so on) associated with the above-mentioned high-energydensity events in the atmospheres, especially that on young exoplanets. These results make it possible to achieve a more reliable interpretation of observation astronomy data, to simulate the transmission spectra and to estimate chemical conditions of prebiotic synthesis on young planets.

Results:

Přeček M., Kubelík P., Vyšín L., Schmidhammer U., Larbre J.-P., Demarque A., Jeunesse P., Mostafavi M., Juha L.: Dose Rate Effects in Fluorescence Chemical Dosimeters Exposed to Picosecond Electron Pulses: An Accurate Measurement of Low Doses at High Dose Rates. Radiation Research 197 [2] (2022) 131-148. [ Abstract ] [ Link ]

Ferus M., Adam V., Cassone G., Civiš S., Čuba V., Chatzitheodoridis E., Drtinová B., Lefloch B., Heays A.N., Jheeta S., Kereszturi A., Knížek A., Krůs M., Kubelík P., Lammer H., Lenža L., Nejdl L., Pastorek A., Petera L., Rimmer P., Saladino R., Saija F., Sproß L., Šponer J., Šponer J., Todd Z., Vaculovičová M., Zemánková K., Chernov V. V.: Ariel – a window to the origin of life on early earth? Experimental Astronomy 53 [2] (2022) 679-728. [ Abstract ] [ Link ]

Ferus M., Adam V., Cassone G., Civiš S., Čuba V., Chatzitheodoridis E., Drtinová B., Le Floch P., Heays A., Jheeta S., Kereszturi A., Knížek A., Krůs M., Kubelík P., Lammer H., Lenža L., Nejdl L., Pastorek A., Petera L., Rimmer P., Saladino R., Saija F., Spross L., Šponer J., Šponer Judit E., Todd Z., Vaculovičová M., Zemánková K., Chernov V. E.: Ariel a window to the origin of life on early earth? Experimental Astronomy 53 [2] (2022) 679-728. [ Abstract ]

Burian T., Chalupský J., Hájková V., Toufarová M., Vorlíček V., Hau-Riege S., Krzywinski J., Bozek J.D., Bostedt C., Graf A.T., Jastrow U.F., Kreis S., London R.A., Messerschmidt M., Moeller S., Sobierajski M., Tiedtke K., De Grazia M., Auguste T., Carré B., Guizard S., Merdji H., Medvedev N., Juha L.: Subthreshold erosion of an organic polymer induced by multiple shots of an X-ray free-electron laser. Physical Review Applied 14 [3] (2020) 1-14, č. článku 034057. [ Abstract ] [ Link ]

Rimmer P. B., Ferus M., Waldmann I. P., Knížek A., Kalvaitis D., Ivanek O., Kubelík P., Yurchenko S. N., Burian T., Dostál J., Juha L., Dudžák R., Krůs M., Tennyson J., Civiš S., Archibald A. T., Granville-Willett A.: Identifiable Acetylene Features Predicted for Young Earth-like Exoplanets with Reducing Atmospheres Undergoing Heavy Bombardment. Astrophysical Journal 888 [1] (2020) 1-12, č. článku 21. E. [ Abstract ] [ Link ]

Vyšín L., Wachulak P., Toufarová M., Medvedev N., Voronkov R. A., Bartnik A., Fiedorowicz H., Juha L.: Chemical Dosimetry in the „water Window“: Ferric Ions and Hydroxyl Radicals Produced by Intense Soft X Rays. Radiation Research 193 [4] (2020) 372-382. [ Abstract ] [ Link ]

Ferus M., Rimmer P., Cassone G., Knížek A., Civiš S., Šponer J.E., Ivanek O., Šponer J., Saeidfirozeh H., Kubelík P., Dudžák R., Petera L., Juha L., Pastorek A., Křivková A., Krůs M.: One-Pot Hydrogen Cyanide-Based Prebiotic Synthesis of Canonical Nucleobases and Glycine Initiated by High-Velocity Impacts on Early Earth. Astrobiology 20 [12] (2020) 1476-1488. [ Abstract ] [ Link ]

Bleiner D., Juha L., Qu D.: Soft X-ray laser ablation for nano-scale chemical mapping microanalysis. Journal of Analytical Atomic Spectrometry 35 [6] (2020) 1051-1070. [ Abstract ] [ Link ]

Mohammadi E., Petera L., Saeidfirozeh H., Knížek A., Kubelík P., Dudžák R., Krůs M., Juha L., Civiš S., Coulon R., Malina O., Ugolotti J., Ranc V., Otyepka M., Šponer J., Ferus M., Šponer J.E.: Formic Acid, a Ubiquitous but Overlooked Component of the Early Earth Atmosphere. Chemistry A European Journal 26 [52] (2020) 12075-12080. [ Abstract ] [ Link ]