SEP environment in the inner heliosphere from Solar Orbiter and Parker Solar Probe
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866913458589532160 |
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| author | Wimmer-Schweingruber, Robert F. Rodriguez-Pacheco, Javier Ho, George C. Cohen, Christina M. Mason, Glenn M. EPD, the Solar Orbiter teams, Parker Solar Probe ISIS |
| author_facet | Wimmer-Schweingruber, Robert F. Rodriguez-Pacheco, Javier Ho, George C. Cohen, Christina M. Mason, Glenn M. EPD, the Solar Orbiter teams, Parker Solar Probe ISIS |
| contents | The Sun drives a supersonic wind which inflates a giant plasma bubble in our very local interstellar neighborhood, the heliosphere. It is bathed in an extremely variable background of energetic ions and electrons which originate from a number of sources. Solar energetic particles (SEPs) are accelerated in the vicinity of the Sun, whereas shocks driven by solar disturbances are observed to accelerate energetic storm particles (ESPs). Moreover, a dilute population with a distinct composition forms the anomalous cosmic rays (ACRs) which are of a mixed interstellar-heliospheric origin. Particles are also accelerated at planetary bow shocks. We will present recent observations of energetic particles by Solar Orbiter and Parker Solar Probe, as well as other spacecraft that allow us to study the acceleration and transport of energetic particles at multiple locations in the inner heliosphere. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_02330 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | SEP environment in the inner heliosphere from Solar Orbiter and Parker Solar Probe Wimmer-Schweingruber, Robert F. Rodriguez-Pacheco, Javier Ho, George C. Cohen, Christina M. Mason, Glenn M. EPD, the Solar Orbiter teams, Parker Solar Probe ISIS Solar and Stellar Astrophysics Space Physics The Sun drives a supersonic wind which inflates a giant plasma bubble in our very local interstellar neighborhood, the heliosphere. It is bathed in an extremely variable background of energetic ions and electrons which originate from a number of sources. Solar energetic particles (SEPs) are accelerated in the vicinity of the Sun, whereas shocks driven by solar disturbances are observed to accelerate energetic storm particles (ESPs). Moreover, a dilute population with a distinct composition forms the anomalous cosmic rays (ACRs) which are of a mixed interstellar-heliospheric origin. Particles are also accelerated at planetary bow shocks. We will present recent observations of energetic particles by Solar Orbiter and Parker Solar Probe, as well as other spacecraft that allow us to study the acceleration and transport of energetic particles at multiple locations in the inner heliosphere. |
| title | SEP environment in the inner heliosphere from Solar Orbiter and Parker Solar Probe |
| topic | Solar and Stellar Astrophysics Space Physics |
| url | https://arxiv.org/abs/2408.02330 |