Unbiased CLEAN for STIX in Solar Orbiter by Emma Perracchione, Fabiana Camattari, Anna Volpara, Paolo Massa, Anna Maria Massone, Michele Piana

“…This study introduces a user-independent release of CLEAN for image reconstruction from observations recorded by the Spectrometer/Telescope for Imaging X-rays (STIX) on board Solar Orbiter. Specifically, we show here that this unbiased release of CLEAN outperforms the standard version of the algorithm, with reconstructions in line with the ones offered by other imaging methods developed in the STIX framework.…”
Get full text

Machine learning detection of dust impact signals observed by the Solar Orbiter by A. Kvammen, K. Wickstrøm, S. Kociscak, J. Vaverka, L. Nouzak, A. Zaslavsky, K. Rackovic Babic, K. Rackovic Babic, A. Gjelsvik, D. Pisa, J. Soucek, I. Mann

“…In this way, <span class="inline-formula">∼</span> 5–20 dust impacts are daily detected as the Solar Orbiter travels through the interplanetary medium. …”
Get full text

High-frequency Decayless Waves with Significant Energy in Solar Orbiter/EUI Observations by Elena Petrova, Norbert Magyar, Tom Van Doorsselaere, David Berghmans

“…However, the resolution of imaging instruments up until the Solar Orbiter has made it impossible to resolve the necessary time and spatial scales. …”
Get full text

Solar Orbiter SWA Observations of Electron Strahl Properties Inside 1 AU by Christopher J. Owen, Joel Baby Abraham, Georgios Nicolaou, Daniel Verscharen, Philippe Louarn, Timothy S. Horbury

Subjects: Get full text

The Eruption of a Magnetic Flux Rope Observed by Solar Orbiter and Parker Solar Probe by David M. Long, Lucie M. Green, Francesco Pecora, David H. Brooks, Hanna Strecker, David Orozco-Suárez, Laura A. Hayes, Emma E. Davies, Ute V. Amerstorfer, Marilena Mierla, David Lario, David Berghmans, Andrei N. Zhukov, Hannah T. Rüdisser

“…We present two distinct observations of plasma flows along a filament channel on 2022 September 4 and 5 made using the Solar Orbiter spacecraft. Each plasma flow exhibited helical motions in a right-handed sense as the plasma moved from the source active region across the solar disk to the quiet Sun, suggesting that the magnetic configuration of the filament channel contains a flux rope with positive chirality and at least one turn. …”
Get full text

Slow Solar Wind Connection Science during Solar Orbiter’s First Close Perihelion Passage by Stephanie L. Yardley, Christopher J. Owen, David M. Long, Deborah Baker, David H. Brooks, Vanessa Polito, Lucie M. Green, Sarah Matthews, Mathew Owens, Mike Lockwood, David Stansby, Alexander W. James, Gherardo Valori, Alessandra Giunta, Miho Janvier, Nawin Ngampoopun, Teodora Mihailescu, Andy S. H. To, Lidia van Driel-Gesztelyi, Pascal Démoulin, Raffaella D’Amicis, Ryan J. French, Gabriel H. H. Suen, Alexis P. Rouillard, Rui F. Pinto, Victor Réville, Christopher J. Watson, Andrew P. Walsh, Anik De Groof, David R. Williams, Ioannis Zouganelis, Daniel Müller, David Berghmans, Frédéric Auchère, Louise Harra, Udo Schuehle, Krysztof Barczynski, Éric Buchlin, Regina Aznar Cuadrado, Emil Kraaikamp, Sudip Mandal, Susanna Parenti, Hardi Peter, Luciano Rodriguez, Conrad Schwanitz, Phil Smith, Luca Teriaca, Cis Verbeeck, Andrei N. Zhukov, Bart De Pontieu, Tim Horbury, Sami K. Solanki, Jose Carlos del Toro Iniesta, Joachim Woch, Achim Gandorfer, Johann Hirzberger, David Orozco Súarez, Thierry Appourchaux, Daniele Calchetti, Jonas Sinjan, Fatima Kahil, Kinga Albert, Reiner Volkmer, Mats Carlsson, Andrzej Fludra, Don Hassler, Martin Caldwell, Terje Fredvik, Tim Grundy, Steve Guest, Margit Haberreiter, Sarah Leeks, Gabriel Pelouze, Joseph Plowman, Werner Schmutz, Sunil Sidher, William T. Thompson, Philippe Louarn, Andrei Federov

“…The Slow Solar Wind Connection Solar Orbiter Observing Plan (Slow Wind SOOP) was developed to utilize the extensive suite of remote-sensing and in situ instruments on board the ESA/NASA Solar Orbiter mission to answer significant outstanding questions regarding the origin and formation of the slow solar wind. …”
Get full text

Solar Orbiter and SDO Observations, and a Bifrost Magnetohydrodynamic Simulation of Small-scale Coronal Jets by Navdeep K. Panesar, Viggo H. Hansteen, Sanjiv K. Tiwari, Mark C. M. Cheung, David Berghmans, Daniel Müller

“…We report high-resolution, high-cadence observations of five small-scale coronal jets in an on-disk quiet Sun region observed with Solar Orbiter’s EUI/HRI _EUV in 174 Å. We combine the HRI _EUV images with the EUV images of SDO/AIA and investigate the magnetic setting of the jets using coaligned line-of-sight magnetograms from SDO/HMI. …”
Get full text

Extended 3He-rich Time Periods Observed by Solar Orbiter: Magnetic Connectivity and Sources by A. Kouloumvakos, G. M. Mason, G. C. Ho, R. C. Allen, Robert F. Wimmer-Schweingruber, A. P. Rouillard, J. Rodriguez-Pacheco

“…Observations of Solar Energetic Particles (SEPs) using the Suprathermal Ion Spectrograph (SIS), which is part of the Energetic Particle Detector suite on the Solar Orbiter mission, present an unprecedented opportunity to investigate the composition and evolution of SEPs in close proximity to the Sun. …”
Get full text

Dust observations with antenna measurements and its prospects for observations with Parker Solar Probe and Solar Orbiter by I. Mann, L. Nouzák, J. Vaverka, T. Antonsen, Å. Fredriksen, K. Issautier, D. Malaspina, N. Meyer-Vernet, J. Pavlů, Z. Sternovsky, J. Stude, S. Ye, S. Ye, A. Zaslavsky

“…<p>The electric and magnetic field instrument suite FIELDS on board the NASA Parker Solar Probe and the radio and plasma waves instrument RPW on the ESA Solar Orbiter mission that explore the inner heliosphere are sensitive to signals generated by dust impacts. …”
Get full text

Solar activities associated with 3He-rich solar energetic particle events observed by Solar Orbiter by Nariaki V. Nitta, Radoslav Bučík, Glenn M. Mason, George C. Ho, Christina M. S. Cohen, Raúl Gómez-Herrero, Linghua Wang, Laura A. Balmaceda, Laura A. Balmaceda

“…A series of 3He-rich solar energetic particle (SEP) events was observed by Solar Orbiter in May 2021 at a radial distance of 0.95 AU. …”
Get full text

Elements of planetary, lunar, and solar orbits, 1900 BC to AD 1900, tabulated for historical use / by 440971 Moesgaard, Kristian Peder

A Modeling Investigation for Solar Flare X-Ray Stereoscopy with Solar Orbiter/STIX and Earth-orbiting Missions by Natasha L. S. Jeffrey, Säm Krucker, Morgan Stores, Eduard P. Kontar, Pascal Saint-Hilaire, Andrea F. Battaglia, Laura Hayes, Hannah Collier, Astrid Veronig, Yang Su, Srikar Paavan Tadepalli, Fanxiaoyu Xia

“…The Spectrometer/Telescope for Imaging X-rays (STIX) on board Solar Orbiter (SolO) provides a unique opportunity to systematically perform stereoscopic X-ray observations of solar flares with current and upcoming X-ray missions at Earth. …”
Get full text

Non-field-aligned Proton Beams and Their Roles in the Growth of Fast Magnetosonic/Whistler Waves: Solar Orbiter Observations by Xingyu Zhu, Jiansen He, Die Duan, Daniel Verscharen, Christopher J. Owen, Andrey Fedorov, Philippe Louarn, Timothy S. Horbury

“…Here we explore the origin and the associated particle dynamics of a kinetic wave event in the solar wind by analyzing measurements from Solar Orbiter and comparing them with theoretical predictions from linear Vlasov theory. …”
Get full text

Properties of an Interplanetary Shock Observed at 0.07 and 0.7 au by Parker Solar Probe and Solar Orbiter by Domenico Trotta, Andrea Larosa, Georgios Nicolaou, Timothy S. Horbury, Lorenzo Matteini, Heli Hietala, Xochitl Blanco-Cano, Luca Franci, C. H. K Chen, Lingling Zhao, Gary P. Zank, Christina M. S. Cohen, Stuart D. Bale, Ronan Laker, Nais Fargette, Francesco Valentini, Yuri Khotyaintsev, Rungployphan Kieokaew, Nour Raouafi, Emma Davies, Rami Vainio, Nina Dresing, Emilia Kilpua, Tomas Karlsson, Christopher J. Owen, Robert F. Wimmer-Schweingruber

“…The Parker Solar Probe (PSP) and Solar Orbiter (SolO) missions opened a new observational window in the inner heliosphere, which is finally accessible to direct measurements. …”
Get full text

Simulating Large Area, High Intensity AM0 Illumination – Test Results from Bepicolombo and Solar Orbiter Qualification by Oberhüttinger C., Nesswetter H., Quabis D., Zimmermann C. G.

“…Two ESA high temperature missions, BepiColombo and Solar Orbiter, are planned to start in 2018. Severe environmental conditions with sun intensities up to 10.6 resp. 12.8 solar constants will be encountered during both missions. …”
Get full text

Kinetic Features of Alpha Particles in a Pestchek-like Magnetic Reconnection Event in the Solar Wind Observed by Solar Orbiter by Die Duan, Jiansen He, Xingyu Zhu, Rui Zhuo, Ziqi Wu, Georgios Nicolaou, Jia Huang, Daniel Verscharen, Liu Yang, Christopher J. Owen, Andrey Fedorov, Philippe Louarn, Timothy S. Horbury

“…Using the high-energy (1500–3000 eV) range of the Solar Wind Analyser/Proton–Alpha Sensor instrument on board Solar Orbiter, we study the kinetic features of alpha particles in an exhaust region of a Pestchek-like solar-wind reconnection event with a weak guide field. …”
Get full text

Heavy-ion Acceleration in 3He-rich Solar Energetic Particle Events: New Insights from Solar Orbiter by G. M. Mason, I. Roth, N. V. Nitta, R. Bučík, D. Lario, G. C. Ho, R. C. Allen, A. Kouloumvakos, R. F. Wimmer-Schweingruber, J. Rodriguez-Pacheco

“…We present Solar Orbiter energetic particle observations of two ^3 He-rich events with features more clearly observed than in prior studies. …”
Get full text

Ion kinetic effects linked to magnetic field discontinuities in the slow Alfvénic wind observed by Solar Orbiter in the inner heliosphere by Denise Perrone, Adriana Settino, Rossana De Marco, Raffaella D’Amicis, Silvia Perri

“…Here, we report an analysis of the turbulent properties of a slow Alfvénic stream observed by Solar Orbiter at 0.64 AU. This solar wind stream is characterized by well distinguishable regions, namely, a main portion, an intermediate region, and a rarefaction region. …”
Get full text

Heliospheric 3-D MHD ENLIL simulations of multi-CME and multi-spacecraft events by Dusan Odstrcil, Dusan Odstrcil

Subjects: Get full text

Solar Electron Beam—Langmuir Wave Interactions and How They Modify Solar Electron Beam Spectra: Solar Orbiter Observations of a Match Made in the Heliosphere by Camille Y. Lorfing, Hamish A. S. Reid, Raúl Gómez-Herrero, Milan Maksimovic, Georgios Nicolaou, Christopher J. Owen, Javier Rodriguez-Pacheco, Daniel F. Ryan, Domenico Trotta, Daniel Verscharen

“…Solar Orbiter's four in situ instruments have recorded numerous energetic electron events at heliocentric distances between 0.5 and 1 au. …”
Get full text