Simon, Attila

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2024

Swayne, M I; Maxted, P F L; Triaud, A H M J; Sousa, S G; Deline, A; Ehrenreich, D; Hoyer, S; Olofsson, G; Boisse, I; Duck, A; Gill, S; Martin, D; McCormac, J; Persson, C M; Santerne, A; Sebastian, D; Standing, M R; Acuña, L; Alibert, Y; Alonso, R; ... (2024). The EBLM Project – XI. Mass, radius, and effective temperature measurements for 23 M-dwarf companions to solar-type stars observed with CHEOPS. Monthly Notices of the Royal Astronomical Society, 528(4), pp. 5703-5722. Oxford University Press 10.1093/mnras/stad3866

Pagano, I.; Scandariato, G.; Singh, V.; Lendl, M.; Queloz, D.; Simon, Attila; Sousa, S. G.; Brandeker, A.; Cameron, A. Collier; Sulis, S.; Van Grootel, V.; Wilson, T. G.; Alibert, Y.; Alonso, R.; Anglada, G.; Bárczy, T.; Navascues, D. Barrado; Barros, S. C. C.; Baumjohann, W.; Beck, M.; ... (2024). Constraining the reflective properties of WASP-178 b using CHEOPS photometry. Astronomy and astrophysics, 682 EDP Sciences 10.1051/0004-6361/202346705

Bonfanti, A.; Brady, M.; Wilson, T. G.; Venturini, J.; Egger, J. A.; Brandeker, A.; Sousa, S. G.; Lendl, M.; Simon, A. E.; Queloz, D.; Olofsson, G.; Adibekyan, V.; Alibert, Y.; Fossati, L.; Hooton, M. J.; Kubyshkina, D.; Mustill, A. J.; Luque, R.; Murgas, F.; Santos, N. C.; ... (2024). Characterising TOI-732 b and c: New insights into the M-dwarf radius and density valley. Astronomy and astrophysics, 682 EDP Sciences 10.1051/0004-6361/202348180

Singh, V.; Scandariato, G.; Smith, A. M. S.; Cubillos, P. E.; Lendl, M.; Billot, N.; Fortier, A.; Queloz, D.; Sousa, S. G.; Csizmadia, Sz.; Brandeker, A.; Carone, L.; Wilson, T. G.; Akinsanmi, B.; Patel, J. A.; Krenn, A.; Demangeon, O. D. S.; Bruno, G.; Pagano, I.; Hooton, M. J.; ... (2024). CHEOPS observations of KELT-20 b/MASCARA-2 b: An aligned orbit and signs of variability from a reflective day side. Astronomy and astrophysics, 683 EDP Sciences 10.1051/0004-6361/202347533

2023

Luque, R; Osborn, H P; Leleu, A; Pallé, E; Bonfanti, A; Barragán, O; Wilson, T G; Broeg, C; Cameron, A Collier; Lendl, M; Maxted, P F L; Alibert, Y; Gandolfi, D; Delisle, J-B; Hooton, M J; Egger, J A; Nowak, G; Lafarga, M; Rapetti, D; Twicken, J D; ... (2023). A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067. Nature, 623(7989), pp. 932-937. Springer Nature 10.1038/s41586-023-06692-3

Osborn, H P; Nowak, G; Hébrard, G; Masseron, T; Lillo-Box, J; Pallé, E; Bekkelien, A; Florén, H-G; Guterman, P; Simon, A; Adibekyan, V; Bieryla, A; Borsato, L; Brandeker, A; Ciardi, D R; Collier Cameron, A; Collins, K A; Egger, J A; Gandolfi, D; Hooton, M J; ... (2023). Two warm Neptunes transiting HIP 9618 revealed by TESS and Cheops. Monthly Notices of the Royal Astronomical Society, 523(2), pp. 3069-3089. Oxford University Press 10.1093/mnras/stad1319

Garai, Z.; Osborn, H. P.; Gandolfi, D.; Brandeker, A.; Sousa, S. G.; Lendl, M.; Bekkelien, A.; Broeg, C.; Cameron, A. Collier; Egger, J. A.; Hooton, M. J.; Alibert, Y.; Delrez, L.; Fossati, L.; Salmon, S.; Wilson, T. G.; Bonfanti, A.; Tuson, A.; Ulmer-Moll, S.; Serrano, L. M.; ... (2023). Refined parameters of the HD 22946 planetary system and the true orbital period of planet d. Astronomy and astrophysics, 674, A44. EDP Sciences 10.1051/0004-6361/202345943

Ulmer-Moll, S.; Osborn, H. P.; Tuson, A.; Egger, J. A.; Lendl, M.; Maxted, P.; Bekkelien, A.; Simon, A. E.; Olofsson, G.; Adibekyan, V.; Alibert, Y.; Bonfanti, A.; Bouchy, F.; Brandeker, A.; Fridlund, M.; Gandolfi, D.; Mordasini, C.; Persson, C. M.; Salmon, S.; Serrano, L. M.; ... (2023). TOI-5678b: A 48-day transiting Neptune-mass planet characterized with CHEOPS and HARPS. Astronomy and astrophysics, 674, A43. EDP Sciences 10.1051/0004-6361/202245478

Hawthorn, Faith; Bayliss, Daniel; Wilson, Thomas G; Bonfanti, Andrea; Adibekyan, Vardan; Alibert, Yann; Sousa, Sérgio G; Collins, Karen A; Bryant, Edward M; Osborn, Ares; Armstrong, David J; Abe, Lyu; Acton, Jack S; Addison, Brett C; Agabi, Karim; Alonso, Roi; Alves, Douglas R; Anglada-Escudé, Guillem; Bárczy, Tamas; Barclay, Thomas; ... (2023). TOI-836: A super-Earth and mini-Neptune transiting a nearby K-dwarf. Monthly notices of the Royal Astronomical Society, 520(3), pp. 3649-3668. Oxford University Press 10.1093/mnras/stad306

Krenn, A. F.; Lendl, M.; Patel, J. A.; Carone, L.; Deleuil, M.; Sulis, S.; Collier Cameron, A.; Deline, A.; Guterman, P.; Queloz, D.; Fossati, L.; Brandeker, A.; Heng, K.; Akinsanmi, B.; Adibekyan, V.; Bonfanti, A.; Demangeon, O. D. S.; Kitzmann, D.; Salmon, S.; Sousa, S. G.; ... (2023). The geometric albedo of the hot Jupiter HD 189733b measured with CHEOPS. Astronomy and astrophysics, 672, A24. EDP Sciences 10.1051/0004-6361/202245016

Kiefer, F.; Van Grootel, V.; Lecavelier des Etangs, A.; Szabó, Gy. M.; Brandeker, A.; Broeg, C.; Collier Cameron, A.; Deline, A.; Olofsson, G.; Wilson, T. G.; Sousa, S. G.; Gandolfi, D.; Hébrard, G.; Alibert, Y.; Alonso, R.; Anglada, G.; Bárczy, T.; Barrado, D.; Barros, S. C. C.; Baumjohann, W.; ... (2023). Hint of an exocomet transit in the CHEOPS light curve of HD 172555. Astronomy and astrophysics, 671, A25. EDP Sciences 10.1051/0004-6361/202245104

Sebastian, D; Swayne, M I; Maxted, P F L; Triaud, A H M J; Sousa, S G; Olofsson, G; Beck, M; Billot, N; Hoyer, S; Gill, S; Heidari, N; Martin, D V; Persson, C M; Standing, M R; Alibert, Y; Alonso, R; Anglada, G; Asquier, J; Bárczy, T; Barrado, D; ... (2023). The EBLM project – IX. Five fully convective M-dwarfs, precisely measured with CHEOPS and TESS light curves. Monthly notices of the Royal Astronomical Society, 519(3), pp. 3546-3563. Oxford University Press 10.1093/mnras/stac2565

Lam, K W F; Cabrera, J; Hooton, M J; Alibert, Y; Bonfanti, A; Beck, M; Deline, A; Florén, H-G; Simon, Attila; Fossati, L; Persson, C M; Fridlund, M; Salmon, S; Hoyer, S; Osborn, H P; Wilson, T G; Georgieva, I Y; Nowak, Gr; Luque, R; Egger, J A; ... (2023). Discovery of TOI-1260d and the characterization of the multiplanet system. Monthly notices of the Royal Astronomical Society, 519(1), pp. 1437-1451. Oxford University Press 10.1093/mnras/stac3639

Sulis, S.; Lendl, M.; Cegla, H. M.; Rodríguez Díaz, L. F.; Bigot, L.; Van Grootel, V.; Bekkelien, A.; Cameron, A. Collier; Maxted, P. F. L.; Simon, A. E.; Lovis, C.; Scandariato, G.; Bruno, G.; Nardiello, D.; Bonfanti, A.; Fridlund, M.; Persson, C. M.; Salmon, S.; Sousa, S. G.; Wilson, T. G.; ... (2023). Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO. Astronomy and astrophysics, 670 EDP Sciences 10.1051/0004-6361/202244223

Boldog, Á.; Szabó, Gy. M.; Kriskovics, L.; Brandeker, A.; Kiefer, F.; Bekkelien, A.; Guterman, P.; Olofsson, G.; Simon, A.; Gandolfi, D.; Serrano, L. M.; Wilson, T. G.; Sousa, S. G.; Lecavelier des Etangs, A.; Alibert, Y.; Alonso, R.; Anglada, G.; Bandy, T.; Bárczy, T.; Barrado, D.; ... (2023). Glancing through the debris disk: Photometric analysis of DE Boo with CHEOPS. Astronomy and astrophysics, 671, A127. EDP Sciences 10.1051/0004-6361/202245101

Patel, J. A.; Egger, J. A.; Wilson, T. G.; Bourrier, V.; Carone, L.; Beck, M.; Ehrenreich, D.; Sousa, S. G.; Benz, W.; Brandeker, A.; Deline, A.; Alibert, Y.; Lam, K. W. F.; Lendl, M.; Alonso, R.; Anglada, G.; Bárczy, T.; Barrado, D.; Barros, S. C. C.; Baumjohann, W.; ... (2023). CHEOPS and TESS view of the ultra-short-period super-Earth TOI-561 b. Astronomy and astrophysics, 679, A92. EDP Sciences 10.1051/0004-6361/202244946

Cabrera, J.; Gandolfi, D.; Serrano, L. M.; Csizmadia, Sz.; Egger, J. A.; Baumeister, Ph.; Krenn, A.; Benz, W.; Deline, A.; Florén, H.-G.; Collier Cameron, A.; Adibekyan, V.; Alibert, Y.; Bellomo, S. E.; Delrez, L.; Fossati, L.; Fortier, A.; Grziwa, S.; Hoyer, S.; Bonfanti, A.; ... (2023). The planetary system around HD 190622 (TOI-1054). Astronomy and astrophysics, 675, A183. EDP Sciences 10.1051/0004-6361/202245774

2022

Maxted, P F L; Miller, N J; Hoyer, S; Adibekyan, V; Sousa, S G; Billot, N; Fortier, A; Simon, A E; Cameron, A Collier; Swayne, M I; Gutermann, P; Triaud, A H M J; Southworth, J; Alibert, Y; Alonso, R; Anglada, G; Bárczy, T; Navascues, D Barrado y; Barros, S C C; Baumjohann, W; ... (2022). Fundamental effective temperature measurements for eclipsing binary stars – III. SPIRou near-infrared spectroscopy and CHEOPS photometry of the benchmark G0V star EBLM J0113+31. Monthly notices of the Royal Astronomical Society, 513(4), pp. 6042-6057. Wiley 10.1093/mnras/stac1270

Bourrier, V.; Deline, A.; Krenn, A.; Egger, J. A.; Petit, A. C.; Malavolta, L.; Cretignier, M.; Billot, N.; Broeg, C.; Florén, H.-G.; Queloz, D.; Alibert, Y.; Bonfanti, A.; Bonomo, A. S.; Delisle, J.-B.; Demangeon, O. D. S.; Demory, B.-O.; Dumusque, X.; Ehrenreich, D.; Haywood, R. D.; ... (2022). A CHEOPS-enhanced view of the HD 3167 system. Astronomy and astrophysics, 668, A31. EDP Sciences 10.1051/0004-6361/202243778

Szabó, Gy. M.; Garai, Z.; Brandeker, A.; Gandolfi, D.; Wilson, T. G.; Deline, A.; Olofsson, G.; Fortier, A.; Queloz, D.; Borsato, L.; Kiefer, F.; Lecavelier des Etangs, A.; Lendl, M.; Serrano, L. M.; Sulis, S.; Ulmer Moll, S.; Van Grootel, V.; Alibert, Y.; Alonso, R.; Anglada, G.; ... (2022). Transit timing variations of AU Microscopii b and c. Astronomy and astrophysics, 659, L7. EDP Sciences 10.1051/0004-6361/202243076

Serrano, L. M.; Gandolfi, D.; Hoyer, S.; Brandeker, A.; Hooton, M. J.; Sousa, S.; Murgas, F.; Ciardi, D. R.; Howell, S. B.; Benz, W.; Billot, N.; Florén, H.-G.; Bekkelien, A.; Bonfanti, A.; Krenn, A.; Mustill, A. J.; Wilson, T. G.; Osborn, H.; Parviainen, H.; Heidari, N.; ... (2022). The HD 93963 A transiting system: A 1.04 d super-Earth and a 3.65 d sub-Neptune discovered by TESS and CHEOPS. Astronomy and astrophysics, 667, A1. EDP Sciences 10.1051/0004-6361/202243093

2020

Lendl, M.; Csizmadia, Sz.; Deline, A.; Fossati, L.; Kitzmann, D.; Heng, K.; Hoyer, S.; Salmon, S.; Benz, W.; Broeg, C.; Ehrenreich, D.; Fortier, A.; Queloz, D.; Bonfanti, A.; Brandeker, A.; Collier Cameron, A.; Delrez, L.; Garcia Muñoz, A.; Hooton, M. J.; Maxted, P. F. L.; ... (2020). The hot dayside and asymmetric transit of WASP-189 b seen by CHEOPS. Astronomy and astrophysics, 643(A94), A94. EDP Sciences 10.1051/0004-6361/202038677

2017

Rodrigo, J.; Gasquet, E.; Castro, J.-M.; Herranz, M.; Lara, L.-M.; Muñoz, M.; Simon, Attila; Behnke, T.; Thomas, Nicolas (2017). The BepiColombo Laser Altimeter (BeLA) power converter module (PCM): Concept and characterisation. Review of scientific instruments, 88(3), 034702. American Institute of Physics 10.1063/1.4977096

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