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

76	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
56	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
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
47	Long-term Correlations of Polytropic Indices with Kappa Distributions in Solar Wind Plasma near 1 au Nicolaou, G. & Livadiotis, G., 2019, ApJ, 884, 52
46	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
41	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
39	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
33	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
28	Relationship between Polytropic Index and Temperature Anisotropy in Space Plasmas Livadiotis, G. & Nicolaou, G., 2021, ApJ, 909, 127
28	On the Calculation of the Effective Polytropic Index in Space Plasmas Nicolaou, Georgios, Livadiotis, George & Wicks, Robert T., 2019, Entropy, 21, 997
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
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
22	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
22	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	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
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	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
17	On the Determination of Kappa Distribution Functions from Space Plasma Observations Nicolaou, Georgios, Livadiotis, George & Wicks, Robert T., 2020, Entropy, 22, 212
16	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
16	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
16	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
15	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
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
14	Modeling the Plasma Flow in the Inner Heliosheath with a Spatially Varying Compression Ratio Nicolaou, G. & Livadiotis, G., 2017, ApJ, 838, 7
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
13	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
13	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
11	Statistical Uncertainties of Space Plasma Properties Described by Kappa Distributions Nicolaou, Georgios & Livadiotis, George, 2020, Entropy, 22, 541
10	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
10	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
10	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
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
9	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
7	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
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
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
6	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
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	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
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	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
5	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
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
4	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
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	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
4	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
4	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	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	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
2	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
2	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
2	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
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	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
1	Correlation between Electron Temperature and Ion Charge-state Ratios in the Solar Wind at ∼0.5 au Wu, Xiangyu, Owen, Christopher J., Coburn, Jesse, Nicolaou, Georgios, Verscharen, Daniel, Liu, Jingting, Ioannou, Charalambos, Ran, Hao, Rivera, Yeimy J. & Yardley, Stephanie L., 2026, ApJ, 1000, 13
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	Electron density estimation from measurements of spacecraft potential using Solar Orbiter Boldú, J. J., Graham, D. B., Khotyaintsev, Yu. V., Morooka, M., Eriksson, A., André, M., Maksimovic, M., Vecchio, A., Nicolaou, G., Štverák, S., Owen, C. J. & Watson, C., 2026, A&A, 709, A86
0	Modelling spacecraft-emitted electrons measured by the SWA-EAS experiment on board the Solar Orbiter mission Štverák, Š., Herčík, D., Hellinger, P., Popd'akunik, M., Lewis, G. R., Nicolaou, G., Owen, C. J., Khotyaintsev, Yu. V. & Maksimovic, M., 2026, A&A, 709, A132
0	Angular Scattering of 1─50 keV H, He, C, N, Ne, and Ar Ions Passing Through Thin Carbon Foils Allegrini, Frédéric, Ebert, Robert W., Pontoni, Angèle & Nicolaou, Georgios, 2026, Journal of Geophysical Research (Space Physics), 131, e2026JA035275
0	Comprehensive Characterization of Water Group Ion Composition and Distributions in Saturn's Magnetosphere With Cassini Plasma Spectrometer Data Kim, Thomas K., Reisenfeld, D. B., Wilson, R. J., Smith, H. T., Woodson, A. K., Allegrini, F., Ebert, R. W., Henderson, M. G., Kollmann, P. K., Livadiotis, G., Nicolaou, G., Szalay, J. R., Valek, P. W. & Masters, A., 2026, Journal of Geophysical Research (Space Physics), 131, e2025JA034738
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	The Damping and Instability of Ion-acoustic Waves in the Solar Wind: Solar Orbiter Observations Ran, Hao, Verscharen, Daniel, Coburn, Jesse, Nicolaou, Georgios, Ioannou, Charalambos, Wu, Xiangyu, Liu, Jingting, Klein, Kristopher & Owen, Christopher, 2026, ApJ, 1003, 124
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