Plasma composition measurements in an active region from Solar Orbiter/SPICE and Hinode/EIS
David H. Brooks, Miho Janvier, Deborah Baker, Harry P. Warren, Frédéric Auchère, Mats Carlsson, Andrzej Fludra, Don Hassler, Hardi Peter, Daniel Müller, David R… 展开作者
David H. Brooks, Miho Janvier, Deborah Baker, Harry P. Warren, Frédéric Auchère, Mats Carlsson, Andrzej Fludra, Don Hassler, Hardi Peter, Daniel Müller, David R. Williams, Regina Aznar Cuadrado, Krzysztof Barczynski, Eric Buchlin, Martin Caldwell, Terje Fredvik, Alessandra Giunta, Tim Grundy, Steve Guest, Margit Haberreiter, Louise Harra, Sarah Leeks, Susanna Parenti, Gabriel Pelouze, Joseph Plowman, Werner Schmutz, Udo Schuehle, Sunil Sidher, Luca Teriaca, William T. Thompson, Peter R. Young
A key goal of the Solar Orbiter mission is to connect elemental abundance measurements of the solar wind enveloping the spacecraft with EUV spectroscopic observations of their solar sources, but this is not an easy exercise. Observations from previous missions have revealed a highly complex picture of spatial and temporal variations of elemental abundances in the solar corona. We have used coordinated observations from Hinode and Solar Orbiter to attempt new abundance measurements with the SPICE (Spectral Imaging of the Coronal Environment) instrument, and benchmark them against standard analyses from EIS (EUV Imaging Spectrometer). We use observations of several solar features in AR 12781 taken from an Earth-facing view by EIS on 2020 November 10, and SPICE data obtained one week later on 2020 November 17; when the AR had rotated into the Solar Orbiter field-of-view. We identify a range of spectral lines that are useful for determining the transition region and low coronal temperature structure with SPICE, and demonstrate that SPICE measurements are able to differentiate between photospheric and coronal Mg/Ne abundances. The combination of SPICE and EIS is able to establish the atmospheric composition structure of a fan loop/outflow area at the active region edge. We also discuss the problem of resolving the degree of elemental fractionation with SPICE, which is more challenging without further constraints on the temperature structure, and comment on what that can tell us about the sources of the solar wind and solar energetic particles.
Non-LTE Analysis of Pre-eruptive Prominence Plasma Parameters Effects on the Lyman-beta and Lyman-gamma Lines with Solar Orbiter SPICE Observations
University of Glasgow（格拉斯哥大学）；Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM（巴黎-萨克雷大学、巴黎西岱大学、法国原子能和替代能源委员会、法国国家科学研究中心、天体物理分子信息实验室）；NASA Goddard Space Flight Center（美国国家航空航天局戈达德太空飞行中心）
A New Method of Deriving Doppler Velocities for Solar Orbiter SPICE
University of Colorado（科罗拉多大学）；Université Paris-Saclay（巴黎萨克雷大学）；CNRS（法国国家科学研究中心）；UKRI STFC, RAL Space（英国研究与创新署科学技术设施委员会，RAL空间）；Goddard Space Flight Center（戈达德太空飞行中心）；Catholic University of America（美国天主教大学）；ETH-Zürich（苏黎世联邦理工学院）；Physikalisch-Meteorologische Observatorium Davos/World Radiation Center (PMOD/WRC)（达沃司物理气象观测站/世界辐射中心）；Southwest Research Institute（西南研究院）
Elemental Composition Evolution during the 2024 September 30 Solar Eruption: A Comparison of Hot and Cool Plasma Components with Solar Orbiter/SPICE, Hinode/EIS, and Chandrayaan-2/XSM
Southwest Research Institute（西南研究所）；Ann and H.J. Smead Aerospace Engineering Sciences, University of Colorado Boulder（科罗拉多大学博尔德分校安与H.J.斯梅德航空航天工程科学系）；Laboratory for Atmospheric and Space Physics, University of Colorado Boulder（科罗拉多大学博尔德分校大气与空间物理实验室）；University of Alabama in Huntsville（阿拉巴马大学亨茨维尔分校）；NASA Marshall Space Flight Center（美国国家航空航天局马歇尔太空飞行中心）
Sulfur fractionation in coronal plumes as observed by Solar Orbiter/SPICE
Université Paris-Saclay, CNRS, Institut d’Astrophysique Spatiale（巴黎萨克雷大学）；European Space Agency（欧洲空间局）；Mullard Space Science Laboratory, University College London（伦敦大学学院穆拉德太空科学实验室）；Dublin City University（都柏林城市大学）；Dublin Institute for Advanced Studies（都柏林高等研究院）
FIP Bias Evolution in an Emerging Active Region as observed in SPICE Synoptic Observations
Southwest Research Institute（西南研究所）；University of Colorado Boulder（科罗拉多大学博尔德分校）；University College London, Mullard Space Science Laboratory（伦敦大学学院穆拉德空间科学实验室）；Naval Research Laboratory（海军研究实验室）；ETH-Zurich（苏黎世联邦理工学院）；PMOD/WRC
