@mastersthesis{MTMT:34745497, title = {Programozási megoldásokkal a Földön kívüli víz nyomában. asztrobiológiai elemzések}, url = {https://m2.mtmt.hu/api/publication/34745497}, author = {Pál, Bernadett}, doi = {10.15476/ELTE.2022.180}, publisher = {Eötvös Loránd University}, unique-id = {34745497}, year = {2023} } @article{MTMT:34143227, title = {Investigating the porosity of Enceladus}, url = {https://m2.mtmt.hu/api/publication/34143227}, author = {Kisvárdai, Imre and Pál, Bernadett and Kereszturi, Ákos}, doi = {10.1093/mnras/stad2333}, journal-iso = {MON NOT R ASTRON SOC}, journal = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY}, volume = {525}, unique-id = {34143227}, issn = {0035-8711}, year = {2023}, eissn = {1365-2966}, pages = {1246-1253} } @book{MTMT:33723641, title = {Folyadékok a Naprendszerben}, url = {https://m2.mtmt.hu/api/publication/33723641}, isbn = {9789638776754}, author = {Bérczi, Szaniszló and Hargitai, Henrik and Homolya, Emese and Illés, Erzsébet and Kereszturi, Ákos and Mörtl, Mária and Pál, Bernadett and Sík, András and Tasnádi, Péter and Weidinger, Tamás}, doi = {10.21862/folyadekok2023}, publisher = {ELTE TTK Kozmikus Anyagokat Vizsgáló Űrkutató Csoport}, unique-id = {33723641}, year = {2023}, orcid-numbers = {Hargitai, Henrik/0000-0001-6563-6921; Mörtl, Mária/0000-0002-2948-9263} } @article{MTMT:33637301, title = {Laboratory measurements show temperature-dependent permittivity of lunar regolith simulants}, url = {https://m2.mtmt.hu/api/publication/33637301}, author = {Kobayashi, M. and Miyamoto, H. and Pál, Bernadett and Niihara, T. and Takemura, T.}, doi = {10.1186/s40623-022-01757-5}, journal-iso = {EARTH PLANETS SPACE}, journal = {EARTH PLANETS AND SPACE}, volume = {75}, unique-id = {33637301}, issn = {1343-8832}, abstract = {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.}, keywords = {radar; permittivity; ground penetrating radar; Moon; Lunar regolith; Lunar mission; WATER-ICE}, year = {2023}, eissn = {1880-5981} } @article{MTMT:33334427, title = {Review of meteorite irradiation tests to support next C-type asteroid missions}, url = {https://m2.mtmt.hu/api/publication/33334427}, author = {Kereszturi, Ákos and Gyollai, Ildikó and Juhász, Zoltán and Pál, Bernadett and Rácz, Richárd Péter and Rezes, Dániel and Sulik, Béla}, doi = {10.1093/mnras/stac3587}, journal-iso = {MON NOT R ASTRON SOC}, journal = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY}, volume = {519}, unique-id = {33334427}, issn = {0035-8711}, abstract = {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.}, year = {2023}, eissn = {1365-2966}, pages = {3947-3957}, orcid-numbers = {Gyollai, Ildikó/0000-0001-8576-0196; Rezes, Dániel/0000-0003-0730-2418} } @CONFERENCE{MTMT:33110828, title = {Flock of Low Cost Microlanders to Survey Liquid Water Potential on Mars Along the Receding Polar Cap}, url = {https://m2.mtmt.hu/api/publication/33110828}, author = {Kereszturi, Ákos and Miyamoto, H. and Pál, Bernadett}, booktitle = {Low-Cost Science Mission Concepts for Mars Exploration}, unique-id = {33110828}, abstract = {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.}, year = {2022} } @CONFERENCE{MTMT:33110825, title = {Investigating Pore Compaction Depth and the Habitability Potential of Icy Moons}, url = {https://m2.mtmt.hu/api/publication/33110825}, author = {Kisvárdai, I. and Pál, Bernadett and Kereszturi, Ákos}, booktitle = {53rd Lunar and Planetary Science Conference}, unique-id = {33110825}, abstract = {We aim to estimate the pore compaction depth and the habitability potential of Enceladus using a simple model.}, year = {2022} } @article{MTMT:33110824, title = {Characteristics of de Gerlache crater, site of girlands and slope exposed ice in a lunar polar depression}, url = {https://m2.mtmt.hu/api/publication/33110824}, author = {Kereszturi, Ákos and Tomka, Richárd Krisztián and Gläser, P. A. and Pál, Bernadett and Steinmann, Vilmos and Warren, T.}, doi = {10.1016/j.icarus.2022.115231}, journal-iso = {ICARUS}, journal = {ICARUS}, volume = {388}, unique-id = {33110824}, issn = {0019-1035}, abstract = {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.}, keywords = {Moon; POLAR ICE; DeGerlache crater}, year = {2022}, eissn = {1090-2643}, orcid-numbers = {Steinmann, Vilmos/0000-0001-5233-6436} } @article{MTMT:32699514, title = {Wind-snow interactions at the Ojos del Salado region as a potential Mars analogue site in the Altiplano - Atacama desert region}, url = {https://m2.mtmt.hu/api/publication/32699514}, author = {Kereszturi, Ákos and Aszalós, Júlia Margit and Heiling, Zs and Ignéczi, Ádám and Kapui, Zsuzsanna and Király, Csilla and Leél-Őssy, Szabolcs and Szalai, Zoltán and Nemerkényi, Zsombor and Pál, Bernadett and Skultéti, Ágnes and Nagy, Balázs}, doi = {10.1016/j.icarus.2022.114941}, journal-iso = {ICARUS}, journal = {ICARUS}, volume = {378}, unique-id = {32699514}, issn = {0019-1035}, year = {2022}, eissn = {1090-2643}, orcid-numbers = {Ignéczi, Ádám/0000-0003-1529-8383; Szalai, Zoltán/0000-0001-5267-411X} } @article{MTMT:32679045, title = {Deliquescence probability maps of Mars and key limiting factors using GCM model calculations}, url = {https://m2.mtmt.hu/api/publication/32679045}, author = {Pál, Bernadett and Kereszturi, Ákos}, doi = {10.1016/j.icarus.2021.114856}, journal-iso = {ICARUS}, journal = {ICARUS}, volume = {376}, unique-id = {32679045}, issn = {0019-1035}, year = {2022}, eissn = {1090-2643}, orcid-numbers = {Pál, Bernadett/0000-0002-7189-1627} }