Zobrazeno 1 - 10
of 247
pro vyhledávání: '"Georgoulis, M."'
Autor:
Nindos, A., Patsourakos, S., Moraitis, K., Archontis, V., Liokati, E., Georgoulis, M. K., Norton, A. A.
Using photospheric vector magnetograms obtained by the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory and a magnetic connectivity-based method, we compute the magnetic helicity and free magnetic energy budgets of a simple bi
Externí odkaz:
http://arxiv.org/abs/2409.00931
Autor:
Kontogiannis, I., Georgoulis, M. K.
We study the evolution of electric currents during the emergence of magnetic flux in the solar photosphere and the differences exhibited between solar active regions of different Hale complexity classes. A sample of 59 active regions was analyzed usi
Externí odkaz:
http://arxiv.org/abs/2406.00520
Publikováno v:
A&A 672, A38 (2023)
Using vector magnetograms from the HMI/SDO and a magnetic connectivity-based method, we calculate the instantaneous relative magnetic helicity and free magnetic energy budgets for several days in two solar active regions (ARs), AR11890 and AR11618, b
Externí odkaz:
http://arxiv.org/abs/2301.08495
Autor:
Alipour, N., Safari, H., Verbeeck, C., Berghmans, D., Auchère, F., Chitta, L. P., Antolin, P., Barczynski, K., Buchlin, É., Cuadrado, R. Aznar, Dolla, L., Georgoulis, M. K., Gissot, S., Harra, L., Katsiyannis, A. C., Long, D. M., Mandal, S., Parenti, S., Podladchikova, O., Petrova, E., Soubrié, É., Schühle, U., Schwanitz, C., Teriaca, L., West, M. J., Zhukov, A. N.
Publikováno v:
A&A 663, A128 (2022)
Context. Accurate detections of frequent small-scale extreme ultraviolet (EUV) brightenings are essential to the investigation of the physical processes heating the corona. Aims. We detected small-scale brightenings, termed campfires, using their mor
Externí odkaz:
http://arxiv.org/abs/2204.04027
Autor:
Thalmann, J. K., Georgoulis, M. K., Liu, Y., Pariat, E., Valori, G., Anfinogentov, S., Chen, F., Guo, Y., Moraitis, K., Yang, S., Mastrano, A.
In this ISSI-supported series of studies on magnetic helicity in the Sun, we systematically implement different magnetic helicity calculation methods on high-quality solar magnetogram observations. We apply finite-volume, discrete flux tube (in parti
Externí odkaz:
http://arxiv.org/abs/2108.08525
Autor:
Georgoulis, M. K., Bloomfield, D. S., Piana, M., Massone, A. M., Soldati, M., Gallagher, P. T., Pariat, E., Vilmer, N., Buchlin, E., Baudin, F., Csillaghy, A., Sathiapal, H., Jackson, D. R., Alingery, P., Benvenuto, F., Campi, C., Florios, K., Gontikakis, C., Guennou, C., Guerra, J. A., Kontogiannis, I., Latorre, V., Murray, S. A., Park, S. -H., von Stachelski, S., Torbica, A., Vischi, D., Worsfold, M.
Publikováno v:
Journal of Space Weather and Space Climate, 2021
The EU funded the FLARECAST project, that ran from Jan 2015 until Feb 2018. FLARECAST had a R2O focus, and introduced several innovations into the discipline of solar flare forecasting. FLARECAST innovations were: first, the treatment of hundreds of
Externí odkaz:
http://arxiv.org/abs/2105.05993
Autor:
Gontikakis, C., Kontogiannis, I., Georgoulis, M. K., Guennou, C., Syntelis, P., Park, S. H., Buchlin, E.
We analyse the temporal evolution of the Differential Emission Measure (DEM) of solar active regions and explore its usage in solar flare prediction. The DEM maps are provided by the Gaussian Atmospheric Imaging Assembly (GAIA-DEM) archive, calculate
Externí odkaz:
http://arxiv.org/abs/2011.06433
Autor:
Patsourakos, S., Vourlidas, A., Török, T., Kliem, B., Antiochos, S. K., Archontis, V., Aulanier, G., Cheng, X., Chintzoglou, G., Georgoulis, M. K., Green, L. M., Leake, J. E., Moore, R., Nindos, A., Syntelis, P., Yardley, S. L., Yurchyshyn, V., Zhang, J.
A clear understanding of the nature of the pre-eruptive magnetic field configurations of Coronal Mass Ejections (CMEs) is required for understanding and eventually predicting solar eruptions. Only two, but seemingly disparate, magnetic configurations
Externí odkaz:
http://arxiv.org/abs/2010.10186
Autor:
Zouganelis, I., De Groof, A., Walsh, A. P., Williams, D. R., Mueller, D., Cyr, O. C. St, Auchere, F., Berghmans, D., Fludra, A., Horbury, T. S., Howard, R. A., Krucker, S., Maksimovic, M., Owen, C. J., Rodriiguez-Pacheco, J., Romoli, M., Solanki, S. K., Watson, C., Sanchez, L., Lefort, J., Osuna, P., Gilbert, H. R., Nieves-Chinchilla, T., Abbo, L., Alexandrova, O., Anastasiadis, A., Andretta, V., Antonucci, E., Appourchaux, T., Aran, A., Arge, C. N., Aulanier, G., Baker, D., Bale, S. D., Battaglia, M., Rubio, L. Bellot, Bemporad, A., Berthomier, M., Bocchialini, K., Bonnin, X., Brun, A. S., Bruno, R., Buchlin, E., Buechner, J., Bucik, R., Carcaboso, F., Carr, R., Carrasco-Blazquez, I., Cecconi, B., Cangas, I. Cernuda, Chen, C. H. K., Chitta, L. P., Chust, T., Dalmasse, K., D'Amicis, R., Da Deppo, V., De Marco, R., Dolei, S., Dolla, L., de Wit, T. Dudok, van Driel-Gesztelyi, L., Eastwood, J. P., Lara, F. Espinosa, Etesi, L., Fedorov, A., Felix-Redondo, F., Fineschi, S., Fleck, B., Fontaine, D., Fox, N. J., Gandorfer, A., Genot, V., Georgoulis, M. K., Gissot, S., Giunta, A., Gizon, L., Gomez-Herrero, R., Gontikakis, C., Graham, G., Green, L., Grundy, T., Haberreiter, M., Harra, L. K., Hassler, D. M., Hirzberger, J., Ho, G. C., Hurford, G., Innes, D., Issautier, K., James, A. W., Janitzek, N., Janvier, M., Jeffrey, N., Jenkins, J., Khotyaintsev, Y., Klein, K. -L., Kontar, E. P., Kontogiannis, I., Krafft, C., Krasnoselskikh, V., Kretzschmar, M., Labrosse, N., Lagg, A., Landini, F., Lavraud, B., Leon, I., Lepri, S. T., Lewis, G. R., Liewer, P., Linker, J., Livi, S., Long, D. M., Louarn, P., Malandraki, O., Maloney, S., Martinez-Pillet, V., Martinovic, M., Masson, A., Matthews, S., Matteini, L., Meyer-Vernet, N., Moraitis, K., Morton, R. J., Musset, S., Nicolaou, G., Nindos, A., O'Brien, H., Suarez, D. Orozco, Owens, M., Pancrazzi, M., Papaioannou, A., Parenti, S., Pariat, E., Patsourakos, S., Perrone, D., Peter, H., Pinto, R. F., Plainaki, C., Plettemeier, D., Plunkett, S. P., Raines, J. M., Raouafi, N., Reid, H., Retino, A., Rezeau, L., Rochus, P., Rodriguez, L., Rodriguez-Garcia, L., Roth, M., Rouillard, A. P., Sahraoui, F., Sasso, C., Schou, J., Schuehle, U., Sorriso-Valvo, L., Soucek, J., Spadaro, D., Stangalini, M., Stansby, D., Steller, M., Strugarek, A., Stverak, S., Susino, R., Telloni, D., Terasa, C., Teriaca, L., Toledo-Redondo, S., Iniesta, J. C. del Toro, Tsiropoula, G., Tsounis, A., Tziotziou, K., Valentini, F., Vaivads, A., Vecchio, A., Velli, M., Verbeeck, C., Verdini, A., Verscharen, D., Vilmer, N., Vourlidas, A., Wicks, R., Wimmer-Schweingruber, R. F., Wiegelmann, T., Young, P. R., Zhukov, A. N.
Publikováno v:
A&A 642, A3 (2020)
Solar Orbiter is the first space mission observing the solar plasma both in situ and remotely, from a close distance, in and out of the ecliptic. The ultimate goal is to understand how the Sun produces and controls the heliosphere, filling the Solar
Externí odkaz:
http://arxiv.org/abs/2009.10772
Autor:
Korsos, M. B., Georgoulis, M. K., Gyenge, N., Bisoi, S. K., Yu, S., Poedts, S., Nelson, C. J., Liu, J., Yan, Y., Erdelyi, R.
In this article, we present the application of the weighted horizontal gradient of magnetic field (WGM) flare prediction method to 3-dimensional (3D) extrapolated magnetic configurations of 13 flaring solar active regions (ARs). The main aim is to id
Externí odkaz:
http://arxiv.org/abs/2005.12180