Publications of G. Nicolaou ordered by citations

A list of publications authored or co-authored by G. Nicolaou, derived from the SAO/NASA Astrophysics Data System (ADS) and ordered by the numbers of citations.

Orcid ID: 0000-0003-3623-4928

75	Long-Term Variability of the Polytropic Index of Solar Wind Protons at 1 AU Nicolaou, G., Livadiotis, G. & Moussas, X., 2014, Solar Physics, 289, 1371
55	The New Horizons Solar Wind Around Pluto (SWAP) Observations of the Solar Wind from 11-33 au Elliott, H. A., McComas, D. J., Valek, P., Nicolaou, G., Weidner, S. & Livadiotis, G., 2016, ApJS, 223, 19
52	Properties of plasma ions in the distant Jovian magnetosheath using Solar Wind Around Pluto data on New Horizons Nicolaou, G., McComas, D. J., Bagenal, F. & Elliott, H. A., 2014, Journal of Geophysical Research (Space Physics), 119, 3463
46	Long-term Correlations of Polytropic Indices with Kappa Distributions in Solar Wind Plasma near 1 au Nicolaou, G. & Livadiotis, G., 2019, ApJ, 884, 52
44	Misestimation of temperature when applying Maxwellian distributions to space plasmas described by kappa distributions Nicolaou, Georgios & Livadiotis, George, 2016, Astrophysics and Space Science, 361, 359
39	Determining the Kappa Distributions of Space Plasmas from Observations in a Limited Energy Range Nicolaou, G., Livadiotis, G., Owen, C. J., Verscharen, D. & Wicks, R. T., 2018, ApJ, 864, 3
32	Charge state of ∼1 to 50 keV ions after passing through graphene and ultrathin carbon foils Allegrini, Frédéric, Ebert, Robert W., Fuselier, Stephen A., Nicolaou, Georgios, Bedworth, Peter, Sinton, Steve & Trattner, Karlheinz J., 2014, Optical Engineering, 53, 024101
31	Properties of an Interplanetary Shock Observed at 0.07 and 0.7 au by Parker Solar Probe and Solar Orbiter Trotta, Domenico, Larosa, Andrea, Nicolaou, Georgios, Horbury, Timothy S., Matteini, Lorenzo, Hietala, Heli, Blanco-Cano, Xochitl, Franci, Luca, Chen, C. H. K., Zhao, Lingling, Zank, Gary P., Cohen, Christina M. S., Bale, Stuart D., Laker, Ronan, Fargette, Nais, Valentini, Francesco, Khotyaintsev, Yuri, Kieokaew, Rungployphan, Raouafi, Nour, Davies, Emma, Vainio, Rami, Dresing, Nina, Kilpua, Emilia, Karlsson, Tomas, Owen, Christopher J. & Wimmer-Schweingruber, Robert F., 2024, ApJ, 962, 147
27	Relationship between Polytropic Index and Temperature Anisotropy in Space Plasmas Livadiotis, G. & Nicolaou, G., 2021, ApJ, 909, 127
27	Plasma properties in the deep jovian magnetotail Nicolaou, G., McComas, D. J., Bagenal, F., Elliott, H. A. & Wilson, R. J., 2015, Planetary and Space Science, 119, 222
27	Three-dimensional magnetic reconnection in particle-in-cell simulations of anisotropic plasma turbulence Agudelo Rueda, Jeffersson A., Verscharen, Daniel, Wicks, Robert T., Owen, Christopher J., Nicolaou, Georgios, Walsh, Andrew P., Zouganelis, Ioannis, Germaschewski, Kai & Vargas Domínguez, Santiago, 2021, Journal of Plasma Physics, 87, 905870228
27	On the Calculation of the Effective Polytropic Index in Space Plasmas Nicolaou, Georgios, Livadiotis, George & Wicks, Robert T., 2019, Entropy, 21, 997
23	Jupiter's deep magnetotail boundary layer Nicolaou, G., McComas, D. J., Bagenal, F., Elliott, H. A. & Ebert, R. W., 2015, Planetary and Space Science, 111, 116
21	Electron Partial Density and Temperature Over Jupiter's Main Auroral Emission Using Juno Observations Allegrini, F., Kurth, W. S., Elliott, S. S., Saur, J., Livadiotis, G., Nicolaou, G., Bagenal, F., Bolton, S., Clark, G., Connerney, J. E. P., Ebert, R. W., Gladstone, G. R., Louarn, P., Mauk, B. H., McComas, D. J., Sulaiman, A. H., Szalay, J. R., Valek, P. W. & Wilson, R. J., 2021, Journal of Geophysical Research (Space Physics), 126, e29426
20	The Impact of Turbulent Solar Wind Fluctuations on Solar Orbiter Plasma Proton Measurements Nicolaou, G., Verscharen, D., Wicks, R. T. & Owen, C. J., 2019, ApJ, 886, 101
18	Breathing of the Heliosphere Sokół, Justyna M., Dayeh, Maher A., Fuselier, Stephen A., Nicolaou, Georgios, McComas, D. J. & Zirnstein, E. J., 2021, ApJ, 922, 250
18	Angular scattering of 1-50 keV ions through graphene and thin carbon foils: Potential applications for space plasma instrumentation Ebert, Robert W., Allegrini, Frédéric, Fuselier, Stephen A., Nicolaou, Georgios, Bedworth, Peter, Sinton, Steve & Trattner, Karlheinz J., 2014, Review of Scientific Instruments, 85, 033302
17	Solar Electron Beam-Langmuir Wave Interactions and How They Modify Solar Electron Beam Spectra: Solar Orbiter Observations of a Match Made in the Heliosphere Lorfing, Camille Y., Reid, Hamish A. S., Gómez-Herrero, Raúl, Maksimovic, Milan, Nicolaou, Georgios, Owen, Christopher J., Rodriguez-Pacheco, Javier, Ryan, Daniel F., Trotta, Domenico & Verscharen, Daniel, 2023, ApJ, 959, 128
16	On the Determination of Kappa Distribution Functions from Space Plasma Observations Nicolaou, Georgios, Livadiotis, George & Wicks, Robert T., 2020, Entropy, 22, 212
15	Determining the Bulk Parameters of Plasma Electrons from Pitch-Angle Distribution Measurements Nicolaou, Georgios, Wicks, Robert, Livadiotis, George, Verscharen, Daniel, Owen, Christopher & Kataria, Dhiren, 2020, Entropy, 22, 103
15	The Polytropic Behavior of Solar Wind Protons as Observed by the Ulysses Spacecraft during Solar Minimum Nicolaou, Georgios, Livadiotis, George & McComas, David J., 2023, ApJ, 948, 22
14	Jovian deep magnetotail composition and structure McComas, D. J., Allegrini, F., Bagenal, F., Ebert, R. W., Elliott, H. A., Nicolaou, G., Szalay, J. R., Valek, P. & Weidner, S., 2017, Journal of Geophysical Research (Space Physics), 122, 1763
14	Modeling the Plasma Flow in the Inner Heliosheath with a Spatially Varying Compression Ratio Nicolaou, G. & Livadiotis, G., 2017, ApJ, 838, 7
14	Thermal Energy Budget of Electrons in the Inner Heliosphere: Parker Solar Probe Observations Abraham, Joel B., Verscharen, Daniel, Wicks, Robert T., Agudelo Rueda, Jeffersson A., Owen, Christopher J., Nicolaou, Georgios & Jeong, Seong-Yeop, 2022, ApJ, 941, 145
13	Evaluating the Performance of a Plasma Analyzer for a Space Weather Monitor Mission Concept Nicolaou, G., Wicks, R. T., Rae, I. J. & Kataria, D. O., 2020, Space Weather, 18, e2020SW002559
12	Deriving the bulk properties of solar wind electrons observed by Solar Orbiter. A preliminary study of electron plasma thermodynamics Nicolaou, G., Wicks, R. T., Owen, C. J., Kataria, D. O., Chandrasekhar, A., Lewis, G. R., Verscharen, D., Fortunato, V., Mele, G., DeMarco, R. & Bruno, R., 2021, A&A, 656, A10
12	Semi-empirical relationships for the energy loss and straggling of 1-50 keV hydrogen ions passing through thin carbon foils Allegrini, Frédéric, Ebert, Robert W., Nicolaou, Georgios & Grubbs, Guy, 2015, Nuclear Instruments and Methods in Physics Research B, 359, 115
11	Solar energetic particles injected inside and outside a magnetic cloud: The widespread solar energetic particle event on 2022 January 20 Rodríguez-García, L., Gómez-Herrero, R., Dresing, N., Balmaceda, L. A., Palmerio, E., Kouloumvakos, A., Jebaraj, I. C., Espinosa Lara, F., Roco, M., Palmroos, C., Warmuth, A., Nicolaou, G., Mason, G. M., Guo, J., Laitinen, T., Cernuda, I., Nieves-Chinchilla, T., Fedeli, A., Lee, C. O., Cohen, C. M. S., Owen, C. J., Ho, G. C., Malandraki, O., Vainio, R. & Rodríguez-Pacheco, J., 2025, A&A, 694, A64
11	Statistical Uncertainties of Space Plasma Properties Described by Kappa Distributions Nicolaou, Georgios & Livadiotis, George, 2020, Entropy, 22, 541
10	Observation of Alfvén Ion Cyclotron Waves in ICME Magnetic Clouds at 1 au Dhamane, Omkar, Pawaskar, Vinit, Raghav, Anil, Shaikh, Zubair, D'Amicis, Raffaella, Ghag, Kalpesh, Kumbhar, Kishor, Telloni, Daniele, Nicolaou, Georgios, Tari, Prathmesh, Wicks, Robert, Panchal, Utsav, Sathe, Bhagyashri & Pathare, Prachi, 2023, ApJ, 957, 38
8	Observation of a Fully-formed Forward─Reverse Shock Pair due to the Interaction between Two Coronal Mass Ejections at 0.5 au Trotta, Domenico, Dimmock, Andrew P., Blanco-Cano, Xochitl, Forsyth, Robert J., Hietala, Heli, Fargette, Naïs, Larosa, Andrea, Lugaz, Noé, Palmerio, Erika, Good, Simon W., Soljento, Juska E., Kilpua, Emilia K. J., Yordanova, Emiliya, Pezzi, Oreste, Nicolaou, Georgios, Horbury, Timothy S., Vainio, Rami, Dresing, Nina, Owen, Christopher J. & Wimmer-Schweingruber, Robert F., 2024, ApJ, 971, L35
8	Ion-Acoustic Waves Associated With Interplanetary Shocks Boldú, J. J., Graham, D. B., Morooka, M., André, M., Khotyaintsev, Yu. V., Dimmock, A., Píša, D., Souček, J., Maksimovic, M., Louarn, P., Fedorov, A., Nicolaou, G. & Owen, C., 2024, Geophysical Research Letters, 51, e2024GL109956
7	Energy Transport during 3D Small-scale Reconnection Driven by Anisotropic Plasma Turbulence Agudelo Rueda, Jeffersson A., Verscharen, Daniel, Wicks, Robert T., Owen, Christopher J., Nicolaou, Georgios, Germaschewski, Kai, Walsh, Andrew P., Zouganelis, Ioannis & Domínguez, Santiago Vargas, 2022, ApJ, 938, 4
7	Solar Orbiter SWA Observations of Electron Strahl Properties Inside 1 AU Owen, Christopher J., Abraham, Joel Baby, Nicolaou, Georgios, Verscharen, Daniel, Louarn, Philippe & Horbury, Timothy S., 2022, Universe, 8, 509
7	Ion Energization and Thermalization in Magnetic Reconnection Exhaust Region in the Solar Wind Wu, Ziqi, He, Jiansen, Duan, Die, Zhu, Xingyu, Hou, Chuanpeng, Verscharen, Daniel, Nicolaou, Georgios, Owen, Christopher J., Fedorov, Andrey & Louarn, Philippe, 2023, ApJ, 951, 98
6	The Regulation of the Solar Wind Electron Heat Flux by Wave–Particle Interactions Coburn, Jesse T., Verscharen, Daniel, Owen, Christopher J., Maksimovic, Milan, Horbury, Timothy S., Chen, Christopher H. K., Guo, Fan, Fu, Xiangrong, Liu, Jingting, Abraham, Joel B., Nicolaou, Georgios, Innocenti, Maria Elena, Micera, Alfredo & Jagarlamudi, Vamsee Krishna, 2024, ApJ, 964, 100
6	The Impact of Non-Equilibrium Plasma Distributions on Solar Wind Measurements by Vigil's Plasma Analyser Zhang, H., Verscharen, D. & Nicolaou, G., 2024, Space Weather, 22, e2023SW003671
5	Very Large and Long-lasting Anisotropies Caused by Sunward Streaming Energetic Ions: Solar Orbiter and STEREO A Observations Wei, Wenwen, Lee, Christina O., Dresing, N., Khoo, L. Y., Jian, L. K., Luhmann, J. G., Cohen, C. M. S., Fraschetti, F., Zhuang, B., Huang, J., Owen, C. J., Nicolaou, G., Rodríguez-García, L., Palmerio, E., Jebaraj, I. C., Lynch, B. J. & Carcaboso, F., 2024, ApJ, 973, L52
5	Matching Temporal Signatures of Solar Features to Their Corresponding Solar-Wind Outflows de Pablos, D., Long, D. M., Owen, C. J., Valori, G., Nicolaou, G. & Harra, L. K., 2021, Solar Physics, 296, 68
5	Investigation of the influence of surface composition on the charge state distribution of ∼keV hydrogen exiting thin carbon foils for space plasma instrumentation Allegrini, Frédéric, Coulter, Kent, Ebert, Robert W., Nicolaou, Georgios & Poenitzsch, Vasiliki Zorbas, 2016, Advances in Space Research, 57, 2420
5	Design and Optimization of a High-Time-Resolution Magnetic Plasma Analyzer (MPA) Criton, Benjamin, Nicolaou, Georgios & Verscharen, Daniel, 2020, Applied Sciences, 10, 8483
5	Energy loss and straggling of 1-50 keV H, He, C, N, and O ions passing through few layer graphene Allegrini, Frédéric, Bedworth, Peter, Ebert, Robert W., Fuselier, Stephen A., Nicolaou, Georgios & Sinton, Steve, 2015, Nuclear Instruments and Methods in Physics Research B, 358, 223
5	Significance of Bernoulli Integral Terms for the Solar Wind Protons at 1 au Nicolaou, Georgios, Livadiotis, George & Desai, Mihir I., 2021, Applied Sciences, 11, 4643
4	Effects of cold electron emissions on thermal plasma measurements on board Solar Orbiter spacecraft Štverák, Š., Herčík, D., Nicolaou, G., Hellinger, P., Popďakunik, M., Khotyaintsev, Yu. V., Kataria, D. O., Owen, C. J. & Maksimovic, M., 2025, A&A, 693, A185
4	High-cadence measurements of electron pitch-angle distributions from Solar Orbiter SWA-EAS burst mode operations Owen, C. J., Kataria, D. O., Berčič, L., Horbury, T. S., Berthomier, M., Verscharen, D., Bruno, R., Livi, S., Louarn, P., Anekallu, C., Kelly, C. W., Lewis, G. R., Watson, G., Fortunato, V., Mele, G., Nicolaou, G., Wicks, R. T., O'Brien, H., Evans, V. & Angelini, V., 2021, A&A, 656, L9
4	Solar Orbiter observations of the structure of reconnection outflow layers in the solar wind Owen, C. J., Foster, A. C., Bruno, R., Livi, S., Louarn, P., Berthomier, M., Fedorov, A., Anekallu, C., Kataria, D., Kelly, C. W., Lewis, G. R., Watson, G., Berčič, L., Stansby, D., Suen, G., Verscharen, D., Fortunato, V., Nicolaou, G., Wicks, R. T., Rae, I. J., Lavraud, B., Horbury, T. S., O'Brien, H., Evans, V. & Angelini, V., 2021, A&A, 656, L8
4	Kinetic Features of Alpha Particles in a Pestchek-like Magnetic Reconnection Event in the Solar Wind Observed by Solar Orbiter Duan, Die, He, Jiansen, Zhu, Xingyu, Zhuo, Rui, Wu, Ziqi, Nicolaou, Georgios, Huang, Jia, Verscharen, Daniel, Yang, Liu, Owen, Christopher J., Fedorov, Andrey, Louarn, Philippe & Horbury, Timothy S., 2023, ApJ, 952, L11
3	Estimating the Polytropic Indices of Plasmas with Partial Temperature Tensor Measurements: Application to Solar Wind Protons at ~1 au Nicolaou, Georgios, Livadiotis, George & Desai, Mihir I., 2021, Applied Sciences, 11, 4019
3	Probing Turbulent Scattering Effects on Suprathermal Electrons in the Solar Wind: Modeling, Observations, and Implications Zaslavsky, Arnaud, Kasper, Justin C., Kontar, Eduard P., Larson, Davin E., Maksimovic, Milan, Marques, José M. D. C., Nicolaou, Georgios, Owen, Christopher J., Romeo, Orlando & Whittlesey, Phyllis L., 2024, ApJ, 966, 60
3	Solar Orbiter Observations of Proton and Alpha Particle Kinetic Signatures Related to the Presence of Switchbacks in the Inner Heliosphere: A Case Study Perrone, Denise, Settino, Adriana, Perri, Silvia, D'Amicis, Raffaella, De Marco, Rossana, Nicolaou, Georgios, Telloni, Daniele, Bruno, Roberto & Owen, Christopher J., 2024, ApJ, 973, 171
3	Artificial Polytropic Behavior of Plasmas Determined from the Application of Chi-squared Minimization Analysis to Data with Significant Statistical Uncertainty Nicolaou, Georgios, Livadiotis, George & Ioannou, Charalambos, 2024, ApJ, 977, 168
3	Polarization Analysis of Type III Langmuir/Z-mode Waves with Coherent Magnetic Component Observations by Solar Orbiter Formánek, Tomáš, Santolík, Ondřej, Souček, Jan, Píša, David, Zaslavsky, Arnaud, Kretzschmar, Matthieu, Maksimovic, Milan, Owen, Christopher J. & Nicolaou, Georgios, 2025, ApJ, 985, L29
3	Effects of background noise on fit parameters of plasma scattering angle distributions Nicolaou, Georgios, Allegrini, Frederic, Livadiotis, George & Ebert, Robert W., 2022, Review of Scientific Instruments, 93, 103305
1	Multipoint Observations and Modeling of the 2021 November 4 Forbush Decrease Using Solar Orbiter, CSES-01, and Ground-based Neutron Monitor Data Benella, Simone, Laurenza, Monica, Martucci, Matteo, Ruffolo, David, Hu, Qiang, Nicolaou, Georgios, Owen, Christopher J., Stumpo, Mirko, Plainaki, Christina, Palma, Francesco, Piersanti, Mirko, Sorbara, Matteo, Sotgiu, Alessandro & Sparvoli, Roberta, 2025, ApJ, 986, 142
1	Langmuir-wave Excitation in Solar Wind Magnetic Holes Liu, Jingting, Verscharen, Daniel, Coburn, Jesse, Nicolaou, Georgios, Wu, Xiangyu, Jiang, Wence, Pezzi, Oreste, Pucci, Francesco, Zuin, Matteo, Owen, Christopher J. & Reid, Hamish, 2025, ApJ, 988, L23
1	How does the limited resolution of space plasma analyzers affect the accuracy of space plasma measurements? Nicolaou, G., Ioannou, C., Owen, C. J., Verscharen, D., Fedorov, A. & Louarn, P., 2025, Review of Scientific Instruments, 96, 075203
1	Revealing super-adiabatic features of interplanetary coronal mass ejections at 1 au Shaikh, Zubair I., Nicolaou, Georgios, Raghav, Anil N., Ghag, Kalpesh & Dhamane, Omkar, 2025, A&A, 693, L12
0	Long-lived Magnetic Switchbacks Tracked across 0.32 au through BepiColombo─Solar Orbiter Radial Alignment Stumpo, Mirko, Benella, Simone, Di Bartolomeo, Pier Paolo, Larosa, Andrea, Pezzi, Oreste, Nicolaou, Georgios, Trotta, Domenico, Alberti, Tommaso, D'Amicis, Raffaella, Laurenza, Monica, Verdini, Andrea, Milillo, Anna, Heyner, Daniel, Aronica, Alessandro, Biasiotti, Lorenzo, Brin, Alessandro, Colasanti, Luca, De Angelis, Elisabetta, Ivanovski, Stavro, Kazakov, Adrian, Mangano, Valeria, Massetti, Stefano, Moroni, Martina, Mura, Alessandro, Plainaki, Christina, Richards, Grace, Rispoli, Rosanna, Sordini, Roberto, Auster, H. U., Constantinescu, D., Fischer, D. & Richter, I., 2026, ApJ, 996, L1
0	Thermodynamic Characterization of Solar Wind Interaction Regions Using PSP Observations: Evidence of Subadiabatic and Superadiabatic States Shah, Mohit, Raghav, Anil, Ghag, Kalpesh, Dhamane, Omkar, Kumbhar, Kishor, Nicolaou, Georgios, Bhaskar, Ankush, Allen, R. C. & Shaikh, Zubair, 2025, ApJ, 988, 208
0	Polytropic Analysis of Large-scale Compressive Fluctuations in the Solar Wind: Fluid and Kinetic Behavior Ioannou, C., Nicolaou, G., Owen, C. J., Verscharen, D., Coburn, J. T. & Franci, L., 2025, ApJ, 988, 253
0	Local Particle Acceleration in an ICME-in-Sheath Structure Observed by Solar Orbiter Chen, Xiaomin, Li, Chuan, Xu, Zigong, Nicolaou, Georgios, Kollhoff, Alexander, Ho, George C., Wimmer-Schweingruber, Robert F. & Owen, Christopher J., 2025, ApJ, 994, 211
0	Radial Evolution of a Density Structure within a Solar Wind Magnetic Sector Boundary Berriot, Etienne, Démoulin, Pascal, Alexandrova, Olga, Zaslavsky, Arnaud, Maksimovic, Milan & Nicolaou, Georgios, 2025, ApJ, 981, 140