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Current Sheet Statistics in the Magnetosheath

Published in Frontiers in Astronomy and Space Sciences, 2020

E. Yordanova, Z. Vörös, S. Raptis, T. Karlsson. (2020). Current Sheet Statistics in the Magnetosheath. Frontiers in Astronomy and Space Sciences.

Abstract

Classification of Magnetosheath Jets Using Neural Networks and High Resolution OMNI (HRO) Data

Published in Frontiers in Astronomy and Space Sciences, 2020

S. Raptis, S. Aminalragia-Giamini, T. Karlsson, M. Lindberg. (2020). Classification of Magnetosheath Jets Using Neural Networks and High Resolution OMNI (HRO) Data. Frontiers in Astronomy and Space Sciences.

Abstract

Classifying Magnetosheath Jets Using MMS: Statistical Properties

Published in Journal of Geophysical Research: Space Physics, 2020

S. Raptis, T. Karlsson, F. Plaschke, A. Kullen, P. Lindqvist. (2020). Classifying Magnetosheath Jets Using MMS: Statistical Properties. Journal of Geophysical Research: Space Physics.

Abstract

Helium in the Earth’s foreshock: a global Vlasiator survey

Published in Annales Geophysicae, 2020

M. Battarbee, X. Blanco-Cano, L. Turc, P. Kajdič, A. Johlander, V. Tarvus, S. Fuselier, K. Trattner, M. Alho, T. Brito, U. Ganse, Y. Pfau-Kempf, M. Akhavan-Tafti, T. Karlsson, S. Raptis, M. Dubart, M. Grandin, J. Suni, M. Palmroth. (2020). Helium in the Earth's foreshock: a global Vlasiator survey. Annales Geophysicae.

Abstract

Magnetosheath jet evolution as a function of lifetime: global hybrid-Vlasov simulations compared to MMS observations

Published in Annales Geophysicae, 2021

M. Palmroth, S. Raptis, J. Suni, T. Karlsson, L. Turc, A. Johlander, U. Ganse, Y. Pfau-Kempf, X. Blanco-Cano, M. Akhavan-Tafti, M. Battarbee, M. Dubart, M. Grandin, V. Tarvus, A. Osmane. (2021). Magnetosheath jet evolution as a function of lifetime: global hybrid-Vlasov simulations compared to MMS observations. Annales Geophysicae.

Abstract

Causes of Jets in the Quasi‐Perpendicular Magnetosheath

Published in Geophysical Research Letters, 2021

P. Kajdič, S. Raptis, X. Blanco‐Cano, T. Karlsson. (2021). Causes of Jets in the Quasi‐Perpendicular Magnetosheath. Geophysical Research Letters.

Abstract

On the Generation of Pi2 Pulsations due to Plasma Flow Patterns Around Magnetosheath Jets

Published in Geophysical Research Letters, 2021

C. Katsavrias, S. Raptis, I. A. Daglis, T. Karlsson, M. Georgiou, G. Balasis. (2021). On the Generation of Pi2 Pulsations due to Plasma Flow Patterns Around Magnetosheath Jets. Geophysical Research Letters.

Abstract

Classifying the Magnetosheath Behind the Quasi‐Parallel and Quasi‐Perpendicular Bow Shock by Local Measurements

Published in Journal of Geophysical Research: Space Physics, 2021

T. Karlsson, S. Raptis, H. Trollvik, H. Nilsson. (2021). Classifying the Magnetosheath Behind the Quasi‐Parallel and Quasi‐Perpendicular Bow Shock by Local Measurements. Journal of Geophysical Research: Space Physics.

Abstract

Solar Energetic Particle Event occurrence prediction using Solar Flare Soft X-ray measurements and Machine Learning

Published in Journal of Space Weather and Space Climate, 2021

S. Aminalragia-Giamini, S. Raptis, A. Anastasiadis, A. Tsigkanos, I. Sandberg, A. Papaioannou, C. Papadimitriou, P. Jiggens, A. Aran, I. A. Daglis. (2021). Solar Energetic Particle Event occurrence prediction using Solar Flare Soft X-ray measurements and Machine Learning. Journal of Space Weather and Space Climate.

Abstract

Downstream high-speed plasma jet generation as a direct consequence of shock reformation

Published in Nature Communications, 2022

S. Raptis, T. Karlsson, A. Vaivads, C. Pollock, F. Plaschke, A. Johlander, H. Trollvik, P. Lindqvist. (2022). Downstream high-speed plasma jet generation as a direct consequence of shock reformation. Nature Communications.

Abstract

Electron Kinetic Entropy across Quasi-Perpendicular Shocks

Published in Entropy, 2022

M. Lindberg, A. Vaivads, S. Raptis, P. Lindqvist, B. L. Giles, D. J. Gershman. (2022). Electron Kinetic Entropy across Quasi-Perpendicular Shocks. Entropy.

Abstract

On Magnetosheath Jet Kinetic Structure and Plasma Properties

Published in Geophysical Research Letters, 2022

S. Raptis, T. Karlsson, A. Vaivads, M. Lindberg, A. Johlander, H. Trollvik. (2022). On Magnetosheath Jet Kinetic Structure and Plasma Properties. Geophysical Research Letters.

Abstract

Dynamics of Earth’s bow shock under near-radial interplanetary magnetic field conditions

Published in Physics of Plasmas, 2022

C. J. Pollock, L. Chen, S. J. Schwartz, S. Wang, L. Avanov, J. L. Burch, D. J. Gershman, B. L. Giles, S. Raptis, C. T. Russell. (2022). Dynamics of Earth's bow shock under near-radial interplanetary magnetic field conditions. Physics of Plasmas.

Abstract

Solar wind magnetic holes can cross the bow shock and enter the magnetosheath

Published in Annales Geophysicae, 2022

T. Karlsson, H. Trollvik, S. Raptis, H. Nilsson, H. Madanian. (2022). Solar wind magnetic holes can cross the bow shock and enter the magnetosheath. Annales Geophysicae.

Abstract

MMS Observation of Two‐Step Electron Acceleration at Earth’s Bow Shock

Published in Geophysical Research Letters, 2023

M. Lindberg, A. Vaivads, S. Raptis, T. Karlsson. (2023). MMS Observation of Two‐Step Electron Acceleration at Earth's Bow Shock. Geophysical Research Letters.

Abstract

Velocity of magnetic holes in the solar wind from Cluster multipoint measurements

Published in Annales Geophysicae, 2023

H. Trollvik, T. Karlsson, S. Raptis. (2023). Velocity of magnetic holes in the solar wind from Cluster multipoint measurements. Annales Geophysicae.

Abstract

Shocklets and Short Large Amplitude Magnetic Structures (SLAMS) in the High Mach Foreshock of Venus

Published in Geophysical Research Letters, 2023

G. A. Collinson, H. Hietala, F. Plaschke, T. Karlsson, L. B. Wilson, M. Archer, M. Battarbee, X. Blanco‐Cano, C. Bertucci, D. Long, M. Opher, N. Sergis, C. Gasque, T. Liu, S. Raptis, S. Burne, R. Frahm, T. Zhang, Y. Futaana. (2023). Shocklets and Short Large Amplitude Magnetic Structures (SLAMS) in the High Mach Foreshock of Venus. Geophysical Research Letters.

Abstract

Magnetosheath jets at Jupiter and across the solar system

Published in Nature Communications, 2024

Y. Zhou, S. Raptis, S. Wang, C. Shen, N. Ren, L. Ma. (2024). Magnetosheath jets at Jupiter and across the solar system. Nature Communications.

Abstract

Electron Acceleration at Earth’s Bow Shock Due to Stochastic Shock Drift Acceleration

Published in Geophysical Research Letters, 2024

M. Lindberg, A. Vaivads, T. Amano, S. Raptis, S. Joshi. (2024). Electron Acceleration at Earth's Bow Shock Due to Stochastic Shock Drift Acceleration. Geophysical Research Letters.

Abstract

The Effect of Fast Solar Wind on Ion Distribution Downstream of Earth’s Bow Shock

Published in The Astrophysical Journal Letters, 2024

F. Koller, S. Raptis, M. Temmer, T. Karlsson. (2024). The Effect of Fast Solar Wind on Ion Distribution Downstream of Earth’s Bow Shock. The Astrophysical Journal Letters.

Abstract

Temporal Evolution of O+ Population in the Near‐Earth Plasma Sheet During Geomagnetic Storms as Observed by the Magnetospheric Multiscale Mission

Published in Journal of Geophysical Research: Space Physics, 2024

L. H. Regoli, M. Gkioulidou, S. Ohtani, S. Raptis, C. G. Mouikis, L. M. Kistler, I. J. Cohen, S. A. Fuselier. (2024). Temporal Evolution of O+ Population in the Near‐Earth Plasma Sheet During Geomagnetic Storms as Observed by the Magnetospheric Multiscale Mission. Journal of Geophysical Research: Space Physics.

Abstract

Classifying 8 Years of MMS Dayside Plasma Regions via Unsupervised Machine Learning

Published in Journal of Geophysical Research: Space Physics, 2024

V. Toy‐Edens, W. Mo, S. Raptis, D. L. Turner. (2024). Classifying 8 Years of MMS Dayside Plasma Regions via Unsupervised Machine Learning. Journal of Geophysical Research: Space Physics.

Abstract

Transient upstream mesoscale structures: drivers of solar-quiet space weather

Published in Frontiers in Astronomy and Space Sciences, 2024

P. Kajdič, X. Blanco-Cano, L. Turc, M. Archer, S. Raptis, T. Z. Liu, Y. Pfau-Kempf, A. T. LaMoury, Y. Hao, P. C. Escoubet, N. Omidi, D. G. Sibeck, B. Wang, H. Zhang, Y. Lin. (2024). Transient upstream mesoscale structures: drivers of solar-quiet space weather. Frontiers in Astronomy and Space Sciences.

Abstract

Plasma Sheet Magnetic Flux Transport During Geomagnetic Storms

Published in Geophysical Research Letters, 2024

S. Raptis, V. Merkin, S. Ohtani, M. Gkioulidou, L. H. Regoli. (2024). Plasma Sheet Magnetic Flux Transport During Geomagnetic Storms. Geophysical Research Letters.

Abstract

On the Formation of Super-Alfvénic Flows Downstream of Collisionless Shocks

Published in The Astrophysical Journal, 2024

A. Osmane, S. Raptis. (2024). On the Formation of Super-Alfvénic Flows Downstream of Collisionless Shocks. The Astrophysical Journal.

Abstract

Jets Downstream of Collisionless Shocks: Recent Discoveries and Challenges

Published in Space Science Reviews, 2024

E. Krämer, F. Koller, J. Suni, A. T. LaMoury, A. Pöppelwerth, G. Glebe, T. Mohammed-Amin, S. Raptis, L. Vuorinen, S. Weiss, N. Xirogiannopoulou, M. Archer, X. Blanco-Cano, H. Gunell, H. Hietala, T. Karlsson, F. Plaschke, L. Preisser, O. Roberts, C. Simon Wedlund, M. Temmer, Z. Vörös. (2024). Jets Downstream of Collisionless Shocks: Recent Discoveries and Challenges. Space Science Reviews.

Abstract

Revealing an unexpectedly low electron injection threshold via reinforced shock acceleration

Published in Nature Communications, 2025

S. Raptis, A. Lalti, M. Lindberg, D. L. Turner, D. Caprioli, J. L. Burch. (2025). Revealing an unexpectedly low electron injection threshold via reinforced shock acceleration. Nature Communications.

Abstract

Multimission Observations of Relativistic Electrons and High-speed Jets Linked to Shock-generated Transients

Published in The Astrophysical Journal Letters, 2025

S. Raptis, M. Lindberg, T. Z. Liu, D. L. Turner, A. Lalti, Y. Zhou, P. Kajdič, A. Kouloumvakos, D. G. Sibeck, L. Vuorinen, A. Michael, M. Shumko, A. Osmane, E. Krämer, L. Turc, T. Karlsson, C. Katsavrias, L. B. Wilson, H. Madanian, X. Blanco-Cano, I. J. Cohen, C. P. Escoubet. (2025). Multimission Observations of Relativistic Electrons and High-speed Jets Linked to Shock-generated Transients. The Astrophysical Journal Letters.

Abstract

Magnetosheath Jet‐Triggered ULF Waves: Energy Deposition in the Ionosphere

Published in Journal of Geophysical Research: Space Physics, 2025

E. Krämer, M. Hamrin, H. Gunell, L. Baddeley, N. Partamies, S. Raptis, K. Herlingshaw, A. Schillings. (2025). Magnetosheath Jet‐Triggered ULF Waves: Energy Deposition in the Ionosphere. Journal of Geophysical Research: Space Physics.

Abstract

Sunward flows in the magnetosheath associated with the magnetic pressure gradient and magnetosheath expansion

Published in Frontiers in Astronomy and Space Sciences, 2025

H. Madanian, Y. Pfau-Kempf, R. Rice, T. Liu, T. Karlsson, S. Raptis, D. Turner, J. Beedle. (2025). Sunward flows in the magnetosheath associated with the magnetic pressure gradient and magnetosheath expansion. Frontiers in Astronomy and Space Sciences.

Abstract

Ground Magnetic Response to an Extraordinary IMF BY Flip During the May 2024 Storm: Travel Time From the Magnetosheath to Dayside High Latitudes

Published in Journal of Geophysical Research: Space Physics, 2025

S. Ohtani, Y. Zou, V. G. Merkin, M. Wiltberger, K. H. Pham, S. Raptis, M. Friel, J. W. Gjerloev. (2025). Ground Magnetic Response to an Extraordinary IMF BY Flip During the May 2024 Storm: Travel Time From the Magnetosheath to Dayside High Latitudes. Journal of Geophysical Research: Space Physics.

Abstract

Interplay Between a Foreshock Bubble and a Hot Flow Anomaly Forming Along the Same Rotational Discontinuity

Published in Geophysical Research Letters, 2025

L. Turc, M. O. Archer, H. Zhou, Y. Pfau‐Kempf, J. Suni, P. Kajdič, X. Blanco‐Cano, S. Dahani, M. Battarbee, S. Raptis, T. Z. Liu, H. Zhang, C. P. Escoubet, A. T. LaMoury, S. Tao, V. Lipsanen, Y. Hao, M. Palmroth. (2025). Interplay Between a Foreshock Bubble and a Hot Flow Anomaly Forming Along the Same Rotational Discontinuity. Geophysical Research Letters.

Abstract

Control of Solar Wind on Magnetic Field Fluctuations in the Subsolar Magnetosheath

Published in Journal of Geophysical Research: Space Physics, 2025

Y. Zou, B. M. Walsh, Y. Chen, H. Zhou, S. Raptis. (2025). Control of Solar Wind on Magnetic Field Fluctuations in the Subsolar Magnetosheath. Journal of Geophysical Research: Space Physics.

Abstract

Adaptive PCA-Based Outlier Detection for Multi-feature Time Series in Space Missions

Published in Lecture Notes in Computer Science, 2025

J. Ekelund, S. Raptis, V. Toy-Edens, W. Mo, D. L. Turner, I. J. Cohen, S. Markidis. (2025). Adaptive PCA-Based Outlier Detection for Multi-feature Time Series in Space Missions. Lecture Notes in Computer Science.

Abstract

Automated classification of MESSENGER plasma observations via unsupervised transfer learning

Published in Frontiers in Astronomy and Space Sciences, 2025

V. Toy-Edens, W. Mo, R. C. Allen, S. K. Vines, S. Raptis. (2025). Automated classification of MESSENGER plasma observations via unsupervised transfer learning. Frontiers in Astronomy and Space Sciences.

Abstract

Role of ULF Waves in Reforming the Martian Bow Shock

Published in AGU Advances, 2025

C. Zhang, C. Dong, T. Z. Liu, C. Mazelle, S. Raptis, H. Zhou, J. Fruchtman, J. Halekas, J. Li, K. G. Hanley, S. M. Curry, D. L. Mitchell, X. Li. (2025). Role of ULF Waves in Reforming the Martian Bow Shock. AGU Advances.

Abstract

Fermi Acceleration of Electrons at Earth’s Bow Shock Due To Current Sheet Interaction

Published in Journal of Geophysical Research: Space Physics, 2025

M. Lindberg, X. Shi, H. Hietala, L. Vuorinen, S. Raptis, F. Koller, A. Lalti. (2025). Fermi Acceleration of Electrons at Earth's Bow Shock Due To Current Sheet Interaction. Journal of Geophysical Research: Space Physics.

Abstract

Statistical Relationship Between Foreshock ULF Wave Power and Ground‐Based Pc3‐4 Wave Power

Published in Journal of Geophysical Research: Space Physics, 2025

T. Z. Liu, V. Angelopoulos, S. Dorfman, M. D. Hartinger, K. Zhang, S. Raptis, D. Ma. (2025). Statistical Relationship Between Foreshock ULF Wave Power and Ground‐Based Pc3‐4 Wave Power. Journal of Geophysical Research: Space Physics.

Abstract

On the Spatial Relationship Between the Aurora and Relativistic Electron Precipitation During a Storm‐Time Substorm

Published in Geophysical Research Letters, 2025

M. Shumko, A. Artemyev, S. Raptis, Y. Zou, D. L. Turner, A. Y. Ukhorskiy, C. Gabrielse, G. K. Stephens, I. J. Cohen, C. Wilkins, E. Tsai, S. Ohtani, B. Gallardo‐Lacourt, K. Sorathia, V. Sergeev, J. W. Gjerloev, E. Donovan, E. Spanswick, V. Angelopoulos, A. N. Jaynes. (2025). On the Spatial Relationship Between the Aurora and Relativistic Electron Precipitation During a Storm‐Time Substorm. Geophysical Research Letters.

Abstract

Automated Bow Shock Identification and Multi‐Spacecraft Timing Using Magnetospheric Multiscale (MMS) Observations

Published in Journal of Geophysical Research: Space Physics, 2025

V. Toy‐Edens, S. Raptis, D. L. Turner, W. Mo, S. A. Q. Young. (2025). Automated Bow Shock Identification and Multi‐Spacecraft Timing Using Magnetospheric Multiscale (MMS) Observations. Journal of Geophysical Research: Space Physics.

Abstract

A Comparison of Modeled and Observed Dayside Bow Shock Locations in 8 Years of MMS Data

Published in Journal of Geophysical Research: Space Physics, 2025

Mo, W., Raptis, S., Toy‐Edens, V., Yeakel, K., & Turner, D. L. (2025). A comparison of modeled and observed dayside bow shock locations in 8 Years of MMS data. Journal of Geophysical Research: Space Physics

Abstract

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