University of Leicester
Browse

Do Solar Energetic Particle (SEP) Events Influence the Formation of the V<sub>0</sub> Layer in the Venusian Ionosphere?

Download (1.27 MB)
journal contribution
posted on 2025-11-25, 16:50 authored by Keshav R Tripathi, T Imamura, RK Choudhary, Beatriz Sánchez–Cano, KM Ambili
<p dir="ltr">This study investigates the potential impact of Solar Energetic Particles (SEPs) on the V0 layer of the Venus ionosphere. Electron density profiles obtained from radio occultation experiments conducted by the Venus Express (VEX) and Akatsuki missions were utilized for this purpose. Background data from the Analyzer of Space Plasma and EneRgetic Atoms (ASPERA‐4) aboard VEX were used to detect SEP events. Additionally, observations from the Space Environment Monitor (SEM) suite onboard the Geostationary Operational Environmental Satellite (GOES) during alignments of Venus, Earth, and the Sun were also considered. Our findings indicate that while SEPs may contribute to the formation of the V0 layer, they are not the main driving force in the Venusian ionosphere.</p>

Funding

Japan Society for the promotion of Science

Solar wind influence on terrestrial planets' upper atmospheres: unveiling their close interaction

Science and Technology Facilities Council

Find out more...

History

Author affiliation

University of Leicester College of Science & Engineering Physics & Astronomy

Version

  • VoR (Version of Record)

Published in

Geophysical Research Letters

Volume

51

Issue

14

Publisher

American Geophysical Union (AGU)

issn

0094-8276

eissn

1944-8007

Copyright date

2024

Available date

2025-11-25

Language

en

Deposited by

Ms Beatriz Sanchez-Cano

Deposit date

2025-11-21

Data Access Statement

The Akatsuki radio occultation data are available on the Japan Aerospace Exploration Agency's (JAXA) data archival portal (Murakami et al., 2017, https://www.darts.isas.jaxa.jp/planet/project/akatsuki/rs.html.en). Data for Venus Express radio science payloads are available at the European Space Agency's data archival portal (https://archives.esac.esa.int/psa/ftp/VENUS-EXPRESS/VRA/). ASPERA-4 plots are available at (https://www.umea.irf.se/~peje/vex/hk/bkg/). The information about SEP events is taken from Rotti and Martens (2023, https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/DZYLHK) and CCMC DONKI's website (https://kauai.ccmc.gsfc.nasa.gov/DONKI/search/).

Usage metrics

    University of Leicester Publications

    Categories

    No categories selected

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC