TY - THES AU - Pál, Bernadett TI - Programozási megoldásokkal a Földön kívüli víz nyomában. asztrobiológiai elemzések TS - asztrobiológiai elemzések PB - Eötvös Loránd Tudományegyetem (ELTE) PY - 2023 SP - 127 UR - https://m2.mtmt.hu/api/publication/34745497 ID - 34745497 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Kisvárdai, Imre AU - Pál, Bernadett AU - Kereszturi, Ákos TI - Investigating the porosity of Enceladus JF - MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY J2 - MON NOT R ASTRON SOC VL - 525 PY - 2023 IS - 1 SP - 1246 EP - 1253 PG - 8 SN - 0035-8711 DO - 10.1093/mnras/stad2333 UR - https://m2.mtmt.hu/api/publication/34143227 ID - 34143227 N1 - Export Date: 19 March 2024 CODEN: MNRAA LA - English DB - MTMT ER - TY - BOOK AU - Bérczi, Szaniszló AU - Hargitai, Henrik AU - Homolya, Emese AU - Illés, Erzsébet AU - Kereszturi, Ákos AU - Mörtl, Mária AU - Pál, Bernadett AU - Sík, András AU - Tasnádi, Péter AU - Weidinger, Tamás TI - Folyadékok a Naprendszerben ET - 2 PB - ELTE TTK Kozmikus Anyagokat Vizsgáló Űrkutató Csoport CY - Budapest PY - 2023 SP - 87 SN - 9789638776754 DO - 10.21862/folyadekok2023 UR - https://m2.mtmt.hu/api/publication/33723641 ID - 33723641 N1 - Második, bővített kiadás. A 2010-es elektronikus kiadás (MTMT 1857063) frissített és bővített kiadása. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Kobayashi, M. AU - Miyamoto, H. AU - Pál, Bernadett AU - Niihara, T. AU - Takemura, T. TI - Laboratory measurements show temperature-dependent permittivity of lunar regolith simulants JF - EARTH PLANETS AND SPACE J2 - EARTH PLANETS SPACE VL - 75 PY - 2023 IS - 1 SN - 1343-8832 DO - 10.1186/s40623-022-01757-5 UR - https://m2.mtmt.hu/api/publication/33637301 ID - 33637301 AB - The mapping of available water-ice is a crucial step in the lunar exploration missions. Ground penetrating radars have the potential to map the subsurface structure and the existence of water-ice in terms of the electromagnetic properties, specifically, the permittivity. Slight differences in permittivity can be significantly important when applied in a dry environment, such as on the Moon and Mars. The capability of detecting a small fraction of putative water-ice depends on the permittivity changes in terms of its dependent parameters, such as the frequency, the temperature, the porosity, and the chemical composition. Our work aims at mitigating false detection or overlooking of water-ce by considering their conditions that previous researches did not cover. We measured the permittivity of different lunar regolith relevant analogue samples with a fixed 40 % porosity in the ultra-high-frequency-super-high-frequency band. We used the coaxial probe method to measure anorthosite, basalt, dunite and ilmenite at 20 ∘C, -20 ∘C and -60 ∘C, and we find that, at -60 ∘C, the permittivity decreases about 6-18 % compared with the values at 20 ∘C . Within this temperature range, the permittivity is quite similar to the permittivity of water-ice. We find that the conventional calculation would overestimate the permittivity in the low temperature areas, such as the permanently shadowed regions. We also find that each component in the lunar regolith has different temperature-dependent permittivity, which might be important for radar data analysis to detect lunar polar water-ice. Our results also suggest that it should be possible to estimate the water-ice content from radar measurements at different temperatures given an appropriate method. LA - English DB - MTMT ER - TY - JOUR AU - Kereszturi, Ákos AU - Gyollai, Ildikó AU - Juhász, Zoltán AU - Pál, Bernadett AU - Rácz, Richárd Péter AU - Rezes, Dániel AU - Sulik, Béla TI - Review of meteorite irradiation tests to support next C-type asteroid missions JF - MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY J2 - MON NOT R ASTRON SOC VL - 519 PY - 2023 IS - 3 SP - 3947 EP - 3957 PG - 11 SN - 0035-8711 DO - 10.1093/mnras/stac3587 UR - https://m2.mtmt.hu/api/publication/33334427 ID - 33334427 AB - Effect of space weathering of airless asteroids could be better understood by artificial irradiation tests on meteorites in laboratories. This work surveys the infrared and Raman analysis based interpretation of simulated charged particle irradiation tests in order to better understand near future observational possibilities of asteroid visiting missions and also to support the planning of next missions and directions of detector improvement. Recent works properly targeted different meteors and meteor relevant minerals, evaluating bulk meteorite spectra, During the irradiation tests He+, (Ne+, Kr+) and Ar+ ions were used with fluxes characteristic for inner planetary system solar wind, considering 1-10 million year exposure durations. Although main meteorite minerals were irradiated and analysed, one missing aspect is that only bulk analysis have been done, not minerals separately in their original embedded context. Some Earth based mineral references were also analysed, however they might not necessary behave similar to the same type of reference minerals, and irradiation effect is poorly known for feldspar, troilite, magnetite. Darkening should be also further analysed for separate minerals too, together with the record of peak shape and position changes. Infrared ATR analysis might still provide such data in the future using the recently emerged technology, as well as Raman analysis - however for flyby missions’ infrared is the useful method while Raman can be used only at in-situ missions. The overview including the tables to support the identification of specific missing information related gaps in our current knowledge and directions for future research. LA - English DB - MTMT ER - TY - CONF AU - Kereszturi, Ákos AU - Miyamoto, H. AU - Pál, Bernadett TI - Flock of Low Cost Microlanders to Survey Liquid Water Potential on Mars Along the Receding Polar Cap T2 - Low-Cost Science Mission Concepts for Mars Exploration PY - 2022 UR - https://m2.mtmt.hu/api/publication/33110828 ID - 33110828 AB - Chain of micro-landers used only parachute driven deceleration could survey the temperature and humidity of the shallow subsurface zone on Mars along the receding springtime seasonal water ice cap edge. LA - English DB - MTMT ER - TY - CONF AU - Kisvárdai, I. AU - Pál, Bernadett AU - Kereszturi, Ákos TI - Investigating Pore Compaction Depth and the Habitability Potential of Icy Moons T2 - 53rd Lunar and Planetary Science Conference PY - 2022 UR - https://m2.mtmt.hu/api/publication/33110825 ID - 33110825 AB - We aim to estimate the pore compaction depth and the habitability potential of Enceladus using a simple model. LA - English DB - MTMT ER - TY - JOUR AU - Kereszturi, Ákos AU - Tomka, Richárd Krisztián AU - Gläser, P. A. AU - Pál, Bernadett AU - Steinmann, Vilmos AU - Warren, T. TI - Characteristics of de Gerlache crater, site of girlands and slope exposed ice in a lunar polar depression JF - ICARUS J2 - ICARUS VL - 388 PY - 2022 SN - 0019-1035 DO - 10.1016/j.icarus.2022.115231 UR - https://m2.mtmt.hu/api/publication/33110824 ID - 33110824 AB - The 31 km diameter and 7.5 km deep de Gerlache crater, located 30 km from the southern pole of the Moon was surveyed. At its bottom a 15 km diameter younger crater can be also found beside many smaller overprinting craters. At moderately sloping terrains a few m high, 100-200 m wide, curving quasi-parallel, km long set of ridges could be identified, which seem to be widespread on the surface, and might cover the half or even more of the crater. We named these "girland like features" in this work, which seem to be produced by mass movements on slopes (however differ from most of the already identified slope features, which show downslope elongated lineaments or fallen/redeposited debris on the Moon). At all locations they are superposed by recently formed 10-50 m diameter craters, thus might be older than the equilibrium crater population shown age of about 100 Ma old. This is the first identification of these features at the polar terrains, where they might contribute both in the shielding or exposing of subsurface ice. In de Gerlache crater ice occurrences have previously been located on moderately steep slopes, indicating they might be exposed by mass movement processes, where active movements might have happened in the last some 10 Ma using crater statistics based age of the shallow regolith layer. Only half of them were located at areas with modelled surface temperatures below 110 K, where temperature might be not enough to keep most of the deposited H2O there on Ga time scale. However the real values are probably more diverse because of the limited spatial resolution of available temperature data. Target areas are indicated for possible future missions, where periodic solar illumination, and subsurface ice at 0.5 m depth could be also present. LA - English DB - MTMT ER - TY - JOUR AU - Kereszturi, Ákos AU - Aszalós, Júlia Margit AU - Heiling, Zs AU - Ignéczi, Ádám AU - Kapui, Zsuzsanna AU - Király, Csilla AU - Leél-Őssy, Szabolcs AU - Szalai, Zoltán AU - Nemerkényi, Zsombor AU - Pál, Bernadett AU - Skultéti, Ágnes AU - Nagy, Balázs TI - Wind-snow interactions at the Ojos del Salado region as a potential Mars analogue site in the Altiplano - Atacama desert region JF - ICARUS J2 - ICARUS VL - 378 PY - 2022 SN - 0019-1035 DO - 10.1016/j.icarus.2022.114941 UR - https://m2.mtmt.hu/api/publication/32699514 ID - 32699514 N1 - Konkoly Thege Miklos Astronomical Institute, Research Centre for Astronomy and Earth Sciences, H-1121 Konkoly-Thege Miklos 15-17, Budapest, Hungary Department of Microbiology, Eötvös Loránd University, Pázmány Péter 1/C, Budapest, 1117, Hungary Földgömb Foundation for Research Expeditions, Erzsébet királyné útja 125, Budapest, H-1142, Hungary Research Centre for Astronomy and Earth Sciences, Institute for Geological and Geochemical Research, Budaörsi út 45, Budapest, H-1112, Hungary Geographical Institute, Research Centre for Astronomy and Earth Sciences, Budaörsi út 45, Budapest, H-1112, Hungary Department of Physical and Applied Geology, ELTE Eötvös Loránd University, Pázmány Péter 1/C, Budapest, 1117, Hungary Department of Physical Geography, ELTE Eötvös Loránd University, Pázmány Péter 1/C, Budapest, 1117, Hungary Department of Environmental and Landscape Geography, Eötvös Loránd University, Pázmány Péter 1/C, Budapest, H-1117, Hungary Department of Geography, University of Sheffield, Winter Street, UK, Sheffield, S3 7ND, United Kingdom European Astrobiology Institute, Strasbourg, France Export Date: 23 February 2022 CODEN: ICRSA Correspondence Address: Kereszturi, A.; Research Centre for Astronomy and Earth Sciences, H-1121 Konkoly-Thege Miklos 15-17, Hungary; email: kereszturi.akos@csfk.org LA - English DB - MTMT ER - TY - JOUR AU - Pál, Bernadett AU - Kereszturi, Ákos TI - Deliquescence probability maps of Mars and key limiting factors using GCM model calculations JF - ICARUS J2 - ICARUS VL - 376 PY - 2022 SN - 0019-1035 DO - 10.1016/j.icarus.2021.114856 UR - https://m2.mtmt.hu/api/publication/32679045 ID - 32679045 N1 - Funding Agency and Grant Number: EXODRILTECH project of ESA; Excellence of Strategic RD centers [GINOP-2.3.2-15-2016-00003]; H2020 fund; NKFIH [COOP-NN-116927]; Origins and evolution of life on Earth [TD1308]; Universe COST actions [39045, 39078] Funding text: This work was supported by the EXODRILTECH project of ESA and the Excellence of Strategic R&D centers (GINOP-2.3.2-15-2016-00003) project of NKFIH and the related H2020 fund, the COOP-NN-116927 project of NKFIH and the TD1308 Origins and evolution of life on Earth and in the Universe COST actions number 39045 and 39078. The NetCDF files were visualized with the NASA GISS Panoply viewer developed by Dr. Robert B. Schmunk at the NASA Goddard Institute for Space Studies. We are very grateful for the thorough reviews of Michael Mischna and our anonymous reviewer, as their input substantially improved our manuscript. LA - English DB - MTMT ER -