@article{MTMT:36164134,
	title = {Observations of anomalous peaks in atmospheric ionizing radiation below 10 km},
	url = {https://m2.mtmt.hu/api/publication/36164134},
	author = {Demirhan, K. and Mrdja, D. and Hegedüs, Tibor and Forkapic, S. and Hansman, J. and Velimirovic, D. and Knezevic, Radic J. and Cujic, M.},
	doi = {10.1016/j.asr.2025.03.015},
	journal-iso = {ADV SPACE RES},
	journal = {ADVANCES IN SPACE RESEARCH},
	volume = {75},
	unique-id = {36164134},
	issn = {0273-1177},
	abstract = {Scientists have performed different kind of measurements with various experimental setups for more than 100 years in order to explore in detail the atmospheric ionizing radiation (AIR) profile. The common feature of all previous AIR measurements is the presence of continuous intensity increase of ionizing components along the atmospheric vertical profiles up to the well-known Regener-Pfotzer (RP) maximum appearing between 16–25 km altitudes. In this study, measured vertical ionization profile showed a peaking in ionizing radiation intensity in the atmosphere registered below 10 km altitude, exceeding more than 20 times the values at these heights from previous measurements by meteorological balloons (or in any other way lifted detectors into the atmosphere). We confirmed these findings by three independent measurements performed by detectors equipped with ultra-thin mica windows. The registered peaking in ionizing radiation intensity was observed at altitude ranging from 5-8 km, in a very narrow altitude region (∼300 m). Furthermore, Monte Carlo simulations of propagation of cosmic rays through the atmosphere were performed, searching for possible increase in number of detected events at certain altitudes (10 km, 8 km, and 5 km) due to air-shower developments. Unlike our experimental results, the simulation results did not show an enhance in the number of cosmic ray-produced secondary particles at certain altitudes (5 km or 8 km) relative to the 10 km altitude. A form of anomaly in atmospheric ionizing radiation field at lower altitudes has been seen in ARMAS (Automated Radiation Measurements for Aerospace Safety) data and measurements performed by the National University Corporation, Fukushima University. The presented results in this study will have broad impact on the better understanding of the ionizing radiation production mechanism in the atmosphere, as well as on its dose consequences. © 2025 COSPAR},
	keywords = {cosmic rays; atmospheric radioactivity; Atmospheric effects; Atmospheric effects; Atmospheric radiation; Common features; Cosmic ray detectors; Radiation intensity; Atmospheric ionization; Cosmic ray measurement; ionizing radiation measurement; Cosmics; Atmospheric ionizing radiation; Meteorological balloons; Ultra-thin window GM tube; Vertical ionization profile; Anomalous peaks; Ultra-thin window GM tube; Ultra-thin windows; Vertical ionization; Vertical ionization profile},
	year = {2025},
	eissn = {1879-1948},
	pages = {7787-7799}
}

@inbook{MTMT:36314319,
	title = {Zivatarokhoz köthető elektro-optikai jelenségek és megfigyelésük a világűrből},
	url = {https://m2.mtmt.hu/api/publication/36314319},
	author = {Barta, Márton and Bór, József and Hegedüs, Tibor},
	booktitle = {Móra Akadémia Szakkollégiumi tanulmánykötet},
	unique-id = {36314319},
	year = {2025},
	pages = {111-126}
}

@article{MTMT:36413344,
	title = {SN 2023ixf in M101: Physical Parameters from Bolometric Light Curve Modeling},
	url = {https://m2.mtmt.hu/api/publication/36413344},
	author = {Vinkó, József and Bodola, Zsófia Réka and Gődény, Ákos and Csák, Szelina Fruzsina and Könyves-Tóth, Réka and Nagy, Andrea and Szalai, Tamás and Bánhidi, Dominik and Bíró, Imre Barna and Bódi, Attila and Bora, Zsófia and Csányi, István and Cseh, Borbála and Hegedüs, Tibor and Horti-Dávid, Ágoston and Joó, András Péter and Kalup, Csilla and Kriskovics, Levente and Mochnács, Erika and Pál, András and Regály, Zsolt and Seli, Bálint Attila and Sódor, Ádám and Szabó, Olivér Norton and Szakáts, Róbert and Székely, Péter and Varga, Vázsony and Vida, Krisztián},
	doi = {10.3847/1538-4357/ae0614},
	journal-iso = {ASTROPHYS J},
	journal = {ASTROPHYSICAL JOURNAL},
	volume = {993},
	unique-id = {36413344},
	issn = {1538-4357},
	abstract = {We present new photometric observations of the core-collapse supernova SN 2023ixf occurred in M101, taken with the RC 80 and BRC80 robotic telescopes in Hungary. The initial nickel mass from the late-phase bolometric light curve extending up to 400 days after explosion, is inferred as M Ni  = 0.046 ± 0.007 M ⊙ . The comparison of the bolometric light curve with models from hydrodynamical simulations as well as semi-analytic radiative diffusion codes reveals a relatively low-mass ejecta of M ej  ≲ 9 M ⊙ , contrary to SN 2017eaw, another H-rich core-collapse event, which had M ej  ≳ 15 M ⊙ .},
	year = {2025},
	eissn = {0004-637X},
	orcid-numbers = {Vinkó, József/0000-0001-8764-7832; Gődény, Ákos/0009-0001-3178-603X; Csák, Szelina Fruzsina/0009-0000-0914-130X; Bódi, Attila/0000-0002-8585-4544; Bora, Zsófia/0000-0001-6232-9352; Horti-Dávid, Ágoston/0009-0008-2052-8474; Joó, András Péter/0000-0001-5203-434X; Seli, Bálint Attila/0000-0002-3658-2175; Szakáts, Róbert/0000-0002-1698-605X}
}

@article{MTMT:35150652,
	title = {CHEOPS in-flight performance: A comprehensive look at the first 3.5 yr of operations},
	url = {https://m2.mtmt.hu/api/publication/35150652},
	author = {Fortier, A. and Simon, A. E. and Broeg, C. and Olofsson, G. and Deline, A. and Wilson, T. G. and Maxted, P. F. L. and Brandeker, A. and Collier Cameron, A. and Beck, M. and Bekkelien, A. and Billot, N. and Bonfanti, A. and Bruno, G. and Cabrera, J. and Delrez, L. and Demory, B.-O. and Futyan, D. and Florén, H.-G. and Günther, M. N. and Heitzmann, A. and Hoyer, S. and Isaak, K. G. and Sousa, S. G. and Stalport, M. and Turin, A. and Verhoeve, P. and Akinsanmi, B. and Alibert, Y. and Alonso, R. and Bánhidi, Dominik and Bárczy, T. and Barrado, D. and Barros, S. C. C. and Baumjohann, W. and Baycroft, T. and Beck, T. and Benz, W. and Bíró, Imre Barna and Bódi, A. and Bonfils, X. and Borsato, L. and Charnoz, S. and Cseh, Borbála and Csizmadia, Sz. and Csányi, István and Cubillos, P. E. and Davies, M. B. and Davis, Y. T. and Deleuil, M. and Demangeon, O. D. S. and Derekas, Aliz and Dransfield, G. and Ducrot, E. and Ehrenreich, D. and Erikson, A. and Fariña, C. and Fossati, L. and Fridlund, M. and Gandolfi, D. and Garai, Zoltán and Garcia, L. and Gillon, M. and Gómez Maqueo Chew, Y. and Gómez-Muñoz, M. A. and Granata, V. and Güdel, M. and Guterman, P. and Hegedüs, Tibor and Helling, Ch. and Jehin, E. and Kalup, Csilla and Kilkenny, D. and Kiss, L. László and Kriskovics, Levente and Lam, K. W. F. and Laskar, J. and Lecavelier des Etangs, A. and Lendl, M. and Lopez Pina, A. and Luntzer, A. and Magrin, D. and Miller, N. J. and Modrego Contreras, D. and Mordasini, C. and Munari, M. and Murray, C. A. and Nascimbeni, V. and Ottacher, H. and Ottensamer, R. and Pagano, I. and Pál, András and Pallé, E. and Pasetti, A. and Pedersen, P. P. and Peter, G. and Petrucci, R. and Piotto, G. and Pizarro-Rubio, A. and Pollacco, D. and Pribulla, T. and Queloz, D. and Ragazzoni, R. and Rando, N. and Rauer, H. and Ribas, I. and Sabin, L. and Santos, N. C. and Scandariato, G. and Schanche, N. and Schroffenegger, U. and Scutt, O. J. and Sebastian, D. and Ségransan, D. and Seli, Bálint Attila and Smith, A. M. S. and Southworth, R. and Standing, M. R. and Szabó M., Gyula and Szakáts, Róbert and Thomas, N. and Timmermans, M. and Triaud, A. H. M. J. and Udry, S. and Van Grootel, V. and Venturini, J. and Villaver, E. and Vinkó, József and Walton, N. A. and Wells, R. and Wolter, D.},
	doi = {10.1051/0004-6361/202348576},
	journal-iso = {ASTRON ASTROPHYS},
	journal = {ASTRONOMY & ASTROPHYSICS},
	volume = {687},
	unique-id = {35150652},
	issn = {0004-6361},
	abstract = {Context . Since the discovery of the first exoplanet almost three decades ago, the number of known exoplanets has increased dramatically. By beginning of the 2000s it was clear that dedicated facilities to advance our studies in this field were needed. The CHaracterising ExOPlanet Satellite (CHEOPS) is a space telescope specifically designed to monitor transiting exoplanets orbiting bright stars. In September 2023, CHEOPS completed its nominal mission duration of 3.5 yr and remains in excellent operational conditions. As a testament to this, the mission has been extended until the end of 2026.},
	year = {2024},
	eissn = {1432-0746},
	orcid-numbers = {Fortier, A./0000-0001-8450-3374; Simon, A. E./0000-0001-9773-2600; Broeg, C./0000-0001-5132-2614; Olofsson, G./0000-0003-3747-7120; Wilson, T. G./0000-0001-8749-1962; Maxted, P. F. L./0000-0003-3794-1317; Brandeker, A./0000-0002-7201-7536; Collier Cameron, A./0000-0002-8863-7828; Beck, M./0000-0003-3926-0275; Bekkelien, A./0000-0003-3778-3427; Billot, N./0000-0003-3429-3836; Bonfanti, A./0000-0002-1916-5935; Bruno, G./0000-0002-3288-0802; Cabrera, J./0000-0001-6653-5487; Delrez, L./0000-0001-6108-4808; Demory, B.-O./0000-0002-9355-5165; Florén, H.-G./0000-0001-6994-9159; Günther, M. N./0000-0002-3164-9086; Heitzmann, A./0000-0002-8091-7526; Hoyer, S./0000-0003-3477-2466; Isaak, K. G./0000-0001-8585-1717; Sousa, S. G./0000-0001-9047-2965; Verhoeve, P./0009-0007-7260-3846; Akinsanmi, B./0000-0001-6519-1598; Alibert, Y./0000-0002-4644-8818; Alonso, R./0000-0001-8462-8126; Bárczy, T./0000-0002-7822-4413; Barrado, D./0000-0002-5971-9242; Barros, S. C. C./0000-0003-2434-3625; Baumjohann, W./0000-0001-6271-0110; Baycroft, T./0000-0002-3300-3449; Benz, W./0000-0001-7896-6479; Bódi, A./0000-0002-8585-4544; Bonfils, X./0000-0001-9003-8894; Borsato, L./0000-0003-0066-9268; Charnoz, S./0000-0002-7442-491X; Cseh, Borbála/0000-0002-6497-8863; Csizmadia, Sz./0000-0001-6803-9698; Davies, M. B./0000-0001-6080-1190; Davis, Y. T./0009-0000-6625-137X; Deleuil, M./0000-0001-6036-0225; Demangeon, O. D. S./0000-0001-7918-0355; Derekas, Aliz/0000-0002-6526-9444; Ehrenreich, D./0000-0001-9704-5405; Fariña, C./0000-0003-4940-3751; Fossati, L./0000-0003-4426-9530; Fridlund, M./0000-0002-0855-8426; Gandolfi, D./0000-0001-8627-9628; Garai, Zoltán/0000-0001-9483-2016; Gillon, M./0000-0003-1462-7739; Gómez Maqueo Chew, Y./0000-0002-7486-6726; Gómez-Muñoz, M. A./0000-0002-3938-4211; Granata, V./0000-0002-1425-4541; Güdel, M./0000-0001-9818-0588; Kiss, L. László/0000-0002-3234-1374; Lam, K. W. F./0000-0002-9910-6088; Laskar, J./0000-0003-2634-789X; Lecavelier des Etangs, A./0000-0002-5637-5253; Lendl, M./0000-0001-9699-1459; Magrin, D./0000-0003-0312-313X; Miller, N. J./0000-0001-9550-1198; Mordasini, C./0000-0002-1013-2811; Munari, M./0000-0003-0990-050X; Nascimbeni, V./0000-0001-9770-1214; Pagano, I./0000-0001-9573-4928; Pallé, E./0000-0003-0987-1593; Peter, G./0000-0001-6101-2513; Piotto, G./0000-0002-9937-6387; Pribulla, T./0000-0003-3599-516X; Queloz, D./0000-0002-3012-0316; Ragazzoni, R./0000-0002-7697-5555; Rauer, H./0000-0002-6510-1828; Ribas, I./0000-0002-6689-0312; Sabin, L./0000-0003-0242-0044; Santos, N. C./0000-0003-4422-2919; Scandariato, G./0000-0003-2029-0626; Scutt, O. J./0000-0002-7603-3525; Ségransan, D./0000-0003-2355-8034; Seli, Bálint Attila/0000-0002-3658-2175; Smith, A. M. S./0000-0002-2386-4341; Szabó M., Gyula/0000-0002-0606-7930; Szakáts, Róbert/0000-0002-1698-605X; Triaud, A. H. M. J./0000-0002-5510-8751; Udry, S./0000-0001-7576-6236; Van Grootel, V./0000-0003-2144-4316; Venturini, J./0000-0001-9527-2903; Vinkó, József/0000-0001-8764-7832; Walton, N. A./0000-0003-3983-8778}
}

@article{MTMT:35298249,
	title = {Ejecta Masses in Type Ia Supernovae—Implications for the Progenitor and the Explosion Scenario},
	url = {https://m2.mtmt.hu/api/publication/35298249},
	author = {Bora, Zsófia and Könyves-Tóth, Réka and Vinkó, József and Bánhidi, Dominik and Bíró, Imre Barna and Bostroem, K. Azalee and Bodi, Attila and Burke, Jamison and Csányi, István and Cseh, Borbála and Farah, Joseph and Filippenko, Alexei V. and Hegedüs, Tibor and Hiramatsu, Daichi and Horti-David, Agoston and Howell, D. Andrew and Jha, Saurabh W. and Kalup, Csilla and Krezinger, Máté and Kriskovics, Levente and McCully, Curtis and Newsome, Megan and Ordasi, Andras and Gonzalez, Estefania Padilla and Pál, András and Pellegrino, Craig and Seli, Bálint Attila and Sódor, Ádám and Szabo, Zsofia Marianna and Szabó, Olivér Norton and Szakáts, Róbert and Szalai, Tamás and Székely, Péter and Terreran, Giacomo and Varga, Vazsony and Vida, Krisztián and Wang, Xiaofeng and Wheeler, J. Craig},
	doi = {10.1088/1538-3873/ad6e18},
	journal-iso = {PUBL ASTRON SOC PAC},
	journal = {PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC},
	volume = {136},
	unique-id = {35298249},
	issn = {0004-6280},
	abstract = {The progenitor system(s) as well as the explosion mechanism(s) of thermonuclear (Type Ia) supernovae are long-standing issues in astrophysics. Here we present ejecta masses and other physical parameters for 28 recent Type Ia supernovae inferred from multiband photometric and optical spectroscopic data. Our results confirm that the majority of SNe Ia show {\\it observable} ejecta masses below the Chandrasekhar-limit (having a mean $M_{\\rm ej} \\approx 1.1 \\pm 0.3$ M$_\\odot$), consistent with the predictions of recent sub-M$_{\\rm Ch}$ explosion models. They are compatible with models assuming either single- or double-degenerate progenitor configurations. We also recover a sub-sample of supernovae within $1.2 $ M$_\\odot$ $< M_{\\rm {ej}} < 1.5$ M$_\\odot$ that are consistent with near-Chandrasekhar explosions. Taking into account the uncertainties of the inferred ejecta masses, about half of our SNe are compatible with both explosion models. We compare our results with those in previous studies, and discuss the caveats and concerns regarding the applied methodology.},
	keywords = {Astrophysics - Solar and Stellar Astrophysics; Astrophysics - High Energy Astrophysical Phenomena},
	year = {2024},
	eissn = {1538-3873},
	orcid-numbers = {Vinkó, József/0000-0001-8764-7832; Seli, Bálint Attila/0000-0002-3658-2175; Szakáts, Róbert/0000-0002-1698-605X}
}

@CONFERENCE{MTMT:34574576,
	title = {Zivatarokhoz köthető elektro-optikai jelenségek és megfigyelésük a világűrből},
	url = {https://m2.mtmt.hu/api/publication/34574576},
	author = {Barta, Márton and Bór, József and Hegedüs, Tibor},
	booktitle = {VII. Móra Kárpát-medencei Interdiszciplináris Szakkollégiumi Konferencia},
	unique-id = {34574576},
	year = {2023}
}

@article{MTMT:33559829,
	title = {Felsőlégköri elektro-optikai jelenségek távvezérelt észlelése Bajáról},
	url = {https://m2.mtmt.hu/api/publication/33559829},
	author = {Bór, József and Hegedüs, Tibor and Jäger, Zoltán and Molnár, Tibor and Molnár, Csaba and Szabó, Csongor and Szabóné André, Karolina and Zelkó, Zoltán and Döbrentei, László},
	doi = {10.55856/gok2020.5},
	journal-iso = {Geofizikai Obszervatóriumi Közlemények},
	journal = {Geofizikai Obszervatóriumi Közlemények},
	volume = {2020},
	unique-id = {33559829},
	abstract = {A felsőlégkörben előforduló elektromos eredetű emissziók (FEOEM) optikai észlelése céljából egy távolról vezérelhető megfigyelőrendszert telepítettünk Baján 2014-ben. E jelentés tartalmazza a rendszert alkotó eszközök típusát, a valós idejű eseményészleléshez és rögzítéshez használt szoftverek leírását és beállításait, valamint ismertetjük a sikeres megfigyelésekhez alkalmazott eljárás menetét. Ezen kívül áttekintjük a 2020-ig rögzített észleléseket is. A hét év során 1648 FEOEM felvétel készült, amelyek 92.7%-a vörös lidérceket, 6.4%-a lidércudvart, összesen 3 felvétel pedig gyűrűlidércet tartalmaz. A legtöbb vörös lidércet júniusban észleltük, a lidércudvarok tekintetében pedig a szeptember volt némileg eseménydúsabb a vizsgált időszakban.},
	year = {2022},
	eissn = {2939-5054},
	pages = {37-53},
	orcid-numbers = {Szabóné André, Karolina/0000-0002-2465-1620}
}

@article{MTMT:32577387,
	title = {Remotely controlled observations of electro-optical upper atmospheric phenomena from Baja, Hungary},
	url = {https://m2.mtmt.hu/api/publication/32577387},
	author = {Bór, József and Hegedüs, Tibor and Jäger, Zoltán and Molnár, Tibor and Molnár, Csaba and Szabó, Csongor and Szabóné André, Karolina and Zelkó, Zoltán and Döbrentei, László},
	doi = {10.55855/gor2020.7},
	journal-iso = {GOR},
	journal = {GEOPHYSICAL OBSERVATORY REPORTS OF THE INSTITUTE OF EARTH PHYSICS AND SPACE SCIENCE},
	volume = {2020},
	unique-id = {32577387},
	issn = {0133-459X},
	abstract = {A remotely manageable optical observation system for recording transient luminous events (TLEs) in the upper atmosphere was installed in Baja, Hungary in 2014. This report describes hardware components and settings of the system, software solutions applied either for realtime event detection and remote control, and the strategy of actually making the observations. An overview on the number and type of TLEs observed up to 2020 is presented. During the 7 years of operation, 1655 TLEs were recorded, 92.7% of which were red sprites, 6.4% were sprite halos, and the set of captured events contained altogether only 3 ELVES. Most sprites were observed in June while most sprite halos were observed in September over the years covered in this report.},
	year = {2021},
	eissn = {2939-5062},
	pages = {51-65},
	orcid-numbers = {Szabóné André, Karolina/0000-0002-2465-1620}
}

@inbook{MTMT:31153092,
	title = {Égi kövek nyomában},
	url = {https://m2.mtmt.hu/api/publication/31153092},
	author = {Hegedüs, Tibor},
	booktitle = {Meteor Csillagászati Évkönyv 2021},
	unique-id = {31153092},
	abstract = {A meteoritok tüzetes vizsgálatából kiderülhet a törmelékanyag Naprendszer-beli előtörténete, sorsa. A cikk azt próbálja meg tisztázni, milyen feltételek mellett van esélye egy kis testnek, hogy a földfelszínre leérkezzen, ill. a kutatóknak milyen esélye lehet megtalálni ezeket?},
	keywords = {flight kinematics; Ablation process; meteorites, meteors; Meteorite fall},
	year = {2020},
	pages = {175-196}
}

@article{MTMT:31287139,
	title = {On some strange features in Kepler EB light curves},
	url = {https://m2.mtmt.hu/api/publication/31287139},
	author = {Nuspl, János and Hajdu, Tamás and Hegedüs, Tibor},
	doi = {10.31577/caosp.2020.50.2.419},
	journal-iso = {CONTRIB ASTRON OBS SKALNATE PLESO},
	journal = {CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO},
	volume = {50},
	unique-id = {31287139},
	issn = {1335-1842},
	abstract = {We have scrutinized the approximately 3 thousand compiled eclipsing binary light curves of the Kepler mission in detail and found several typical and repeated common artifacts. We will present some of them and point out their possible origin.},
	keywords = {data processing; Binary stars},
	year = {2020},
	eissn = {1336-0337},
	pages = {419-420},
	orcid-numbers = {Hajdu, Tamás/0000-0001-8060-2367}
}