Zobrazeno 1 - 10
of 634
pro vyhledávání: '"A Sioulas"'
Autor:
Sioulas, Nikos, Velli, Marco, Mallet, Alfred, Bowen, Trevor A., Chandran, B. D. G., Shi, Chen, Cerri, S. S., Liodis, Ioannis, Ervin, Tamar, Larson, Davin E.
Scale-Dependent Dynamic Alignment (SDDA) in Els\"asser field fluctuations is theorized to suppress nonlinearities and modulate the energy spectrum. Limited empirical evidence exists for SDDA within the solar wind turbulence's inertial range. We analy
Externí odkaz:
http://arxiv.org/abs/2407.03649
Autor:
Huang, Zesen, Velli, Marco, Shi, Chen, Zhu, Yingjie, Chandran, B. D. G., Bowen, Trevor, Réville, Victor, Huang, Jia, Hou, Chuanpeng, Sioulas, Nikos, Liu, Mingzhe, Pulupa, Marc, Huang, Sheng, Bale, Stuart D.
Alfv\'en waves, considered one of the primary candidates for heating and accelerating the fast solar wind, are ubiquitous in spacecraft observations, yet their origin remains elusive. In this study, we analyze data from the first 19 encounters of the
Externí odkaz:
http://arxiv.org/abs/2405.15967
Autor:
Ervin, Tamar, Bale, Stuart D., Badman, Samuel T., Bowen, Trevor A., Riley, Pete, Paulson, Kristoff, Rivera, Yeimy J., Romeo, Orlando, Sioulas, Nikos, Larson, Davin E., Verniero, Jaye L., Dewey, Ryan M., Huang, Jia
During Parker Solar Probe (Parker) Encounter 15 (E15), we observe an 18-hour period of near subsonic ($\mathrm{M_S \sim}$ 1) and sub-Alfv\'enic (SA), $\mathrm{M_A}$ <<< 1, slow speed solar wind from 22 to 15.6 R$_\odot$. As the most extreme SA interv
Externí odkaz:
http://arxiv.org/abs/2405.15844
Autor:
Sioulas, Nikos, Zikopoulos, Themistocles, Shi, Chen, Velli, Marco, Bowen, Trevor, Mallet, Alfred, Sorriso-Valvo, Luca, Verdini, Andrea, Chandran, B. D. G., Martinović, Mihailo M., Cerri, S. S., Davis, Nooshin, Dunn, Corina
We analyze in-situ observations of imbalanced solar wind turbulence to evaluate MHD turbulence models grounded in "Critical Balance" (CB) and "Scale-Dependent Dynamic Alignment" (SDDA). At energy injection scales, both outgoing and ingoing modes exhi
Externí odkaz:
http://arxiv.org/abs/2404.04055
Autor:
Shi, Chen, Velli, Marco, Toth, Gabor, Zhang, Kun, Tenerani, Anna, Huang, Zesen, Sioulas, Nikos, van der Holst, Bart
Publikováno v:
ApJL 964 L28 (2024)
Parker Solar Probe observations reveal that the near-Sun space is almost filled with magnetic switchbacks (``switchbacks'' hereinafter), which may be a major contributor to the heating and acceleration of solar wind. Here, for the first time, we deve
Externí odkaz:
http://arxiv.org/abs/2401.11334
Autor:
Huang, Zesen, Shi, Chen, Velli, Marco, Sioulas, Nikos, Panasenco, Olga, Bowen, Trevor, Matteini, Lorenzo, Xia, Mingtao, Shi, Xiaofei, Huang, Sheng, Huang, Jia, Casillas, Lizet
One of the primary science objectives of Parker Solar Probe (PSP) is to determine the structures and dynamics of the plasma and magnetic fields at the sources of the solar wind. However, establishing the connection between {\it in situ} measurements
Externí odkaz:
http://arxiv.org/abs/2312.08669
We conduct 3D magnetohydrodynamic (MHD) simulations of decaying turbulence in the solar wind context. To account for the spherical expansion of the solar wind, we implement the expanding box model. The initial turbulence comprises uncorrelated counte
Externí odkaz:
http://arxiv.org/abs/2308.12376
Autor:
Rommel, F. L., Braga-Ribas, F., Ortiz, J. L., Sicardy, B., Santos-Sanz, P., Desmars, J., Camargo, J. I. B., Vieira-Martins, R., Assafin, M., Morgado, B. E., Boufleur, R. C., Benedetti-Rossi, G., Gomes-Júnior, A. R., Fernández-Valenzuela, E., Holler, B. J., Souami, D., Duffard, R., Margoti, G., Vara-Lubiano, M., Lecacheux, J., Plouvier, J. L., Morales, N., Maury, A., Fabrega, J., Ceravolo, P., Jehin, E., Albanese, D., Mariey, H., Cikota, S., Ruždjak, D., Cikota, A., Szakáts, R., Aissa, D. Baba, Gringahcene, Z., Kashuba, V., Koshkin, N., Zhukov, V., Fişek, S., Çakır, O., Özer, S., Schnabel, C., Schnabel, M., Signoret, F., Morrone, L., Santana-Ros, T., Pereira, C. L., Emilio, M., Burdanov, A. Y., de Wit, J., Barkaoui, K., Gillon, M., Leto, G., Frasca, A., Catanzaro, G., Sanchez, R. Zanmar, Tagliaferri, U., Di Sora, M., Isopi, G., Krugly, Y., Slyusarev, I., Chiorny, V., Mikuž, H., Bacci, P., Maestripieri, M., Grazia, M. D., de la Cueva, I., Yuste-Moreno, M., Ciabattari, F., Kozhukhov, O. M., Serra-Ricart, M., Alarcon, M. R., Licandro, J., Masi, G., Bacci, R., Bosch, J. M., Behem, R., Prost, J. -P., Renner, S., Conjat, M., Bachini, M., Succi, G., Stoian, L., Juravle, A., Carosati, D., Gowe, B., Carrillo, J., Zheleznyak, A. P., Montigiani, N., Foster, C. R., Mannucci, M., Ruocco, N., Cuevas, F., Di Marcantonio, P., Coretti, I., Iafrate, G., Baldini, V., Collins, M., Pál, A., Csák, B., Fernández-Garcia, E., Castro-Tirado, A. J., Hudin, L., Madiedo, J. M., Anghel, R. M., Calvo-Fernández, J. F., Valvasori, A., Guido, E., Gherase, R. M., Kamoun, S., Fafet, R., Sánchez-González, M., Curelaru, L., Vîntdevară, C. D., Danescu, C. A., Gout, J. -F., Schmitz, C. J., Sota, A., Belskaya, I., Rodríguez-Marco, M., Kilic, Y., Frappa, E., Klotz, A., Lavayssière, M., Oliveira, J. Marques, Popescu, M., Mammana, L. A., Fernández-Lajús, E., Schmidt, M., Hopp, U., Komžík, R., Pribulla, T., Tomko, D., Husárik, M., Erece, O., Eryilmaz, S., Buzzi, L., Gährken, B., Nardiello, D., Hornoch, K., Sonbas, E., Er, H., Burwitz, V., Sybilski, P. Waldemar, Bykowski, W., Müller, T. G., Ogloza, W., Gonçalves, R., Ferreira, J. F., Ferreira, M., Bento, M., Meister, S., Bagiran, M. N., Tekeş, M., Marciniak, A., Moravec, Z., Delinčák, P., Gianni, G., Casalnuovo, G. B., Boutet, M., Sanchez, J., Klemt, B., Wuensche, N., Burzynski, W., Borkowski, M., Serrau, M., Dangl, G., Klös, O., Weber, C., Urbaník, M., Rousselot, L., Kubánek, J., André, P., Colazo, C., Spagnotto, J., Sickafoose, A. A., Hueso, R., Sánchez-Lavega, A., Fisher, R. S., Rengstorf, A. W., Perelló, C., Dascalu, M., Altan, M., Gazeas, K., de Santana, T., Sfair, R., Winter, O. C., Kalkan, S., Canales-Moreno, O., Trigo-Rodríguez, J. M., Tsamis, V., Tigani, K., Sioulas, N., Lekkas, G., Bertesteanu, D. N., Dumitrescu, V., Wilberger, A. J., Barnes, J. W., Fieber-Beyer, S. K., Swaney, R. L., Fuentes, C., Mendez, R. A., Dumitru, B. D., Flynn, R. L., Wake, D. A.
Publikováno v:
A&A 678, A167 (2023)
This work aims at constraining the size, shape, and geometric albedo of the dwarf planet candidate 2002 MS4 through the analysis of nine stellar occultation events. Using multichord detection, we also studied the object's topography by analyzing the
Externí odkaz:
http://arxiv.org/abs/2308.08062
Autor:
Nikolaos Vrachnis, Nikolaos Antonakopoulos, Peter von Dadelszen, Marianne Vidler, Georgios Maroudias, Jeffrey Bone, Ash Sandhu, Nikolaos Loukas, Laura Magee, Nikolaos Roussos, Stefania Kassaris, Alexandros Fotiou, Dimitrios Zygouris, Georgios Adonakis, Christodoulos Akrivis, Aris Antsaklis, Apostolos Athanasiadis, Nikolaos Bontis, Angelos Daniilidis, Alexandros Daponte, Georgios Daskalakis, Efthimios Deligeoroglou, Konstantinos Dinas, Peter Drakakis, Angeliki Gerede, Grigorios Grimbizis, Nicoletta Iacovidou, Nikolaos Kambas, Theodoros Katasos, Christos Katsetos, Ilias Katsikis, Antonios Makrigiannakis, Michail Matalliotakis, Christina Messini, Themis Mikos, Nikolaos Nikolettos, Georgios Pados, Minas Paschopoulos, Konstantinos Patsouras, Soultana Siahanidou, Vasileios Sioulas, Chara Skentou, Sofoklis Stavros, Marleen Temmerman, Panagiotis Tsikouras, Vasilios Tsitsis, Nikolaos Vlahos, Alexandros Rodolakis, Aris Papageorghiou, Dimitrios Loutradis
Publikováno v:
Trials, Vol 25, Iss 1, Pp 1-17 (2024)
Abstract Background There is an emerging need to systematically investigate the causes for the increased cesarean section rates in Greece and undertake interventions so as to substantially reduce its rates. To this end, the ability of the participati
Externí odkaz:
https://doaj.org/article/51216e12d6894ca688cb5b834fd8207e
Analytical tools often require real-time responses for highly concurrent parameterized workloads. A common solution is to answer queries using materialized subexpressions, hence reducing processing at runtime. However, as queries are still processed
Externí odkaz:
http://arxiv.org/abs/2307.08018