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Search for Dark Matter Ionization on the Night Side of Jupiter with Cassini

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arxiv 2312.06758 v1 pith:X5ZHJLRP submitted 2023-12-11 hep-ph astro-ph.EPastro-ph.HE

Carlos Blanco , Rebecca K. Leane This is my paper
classification hep-phastro-ph.EPastro-ph.HE
keywords darkmattersearchsidenightcassiniionizationionizing
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We present a new search for dark matter using planetary atmospheres. We point out that annihilating dark matter in planets can produce ionizing radiation, which can lead to excess production of ionospheric $H_3^+$. We apply this search strategy to the night side of Jupiter near the equator. The night side has zero solar irradiation, and low latitudes are sufficiently far from ionizing auroras, leading to an effectively background-free search. We use Cassini data on ionospheric $H_3^+$ emission collected 3 hours either side of Jovian midnight, during its flyby in 2000, and set novel constraints on the dark matter-nucleon scattering cross section down to about $10^{-38}$ cm$^2$. We also highlight that dark matter atmospheric ionization may be detected in Jovian exoplanets using future high-precision measurements of planetary spectra.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Search for Dark Matter Annihilation and Decay with H$\alpha$ Line Emission

    hep-ph 2025-12 conditional novelty 7.0 of 10

    H-alpha line emission from recombining gas in quiet dwarf galaxies is a new probe of dark matter annihilation/decay, giving leading limits for some dark matter masses.

  2. Complementary Planetary Spectroscopy Probes of Dark Matter

    hep-ph 2025-08 conditional novelty 6.0 of 10

    Dark matter annihilation energy deposited in planetary atmospheres and interiors, compared against existing UV airglow and heat flow measurements, yields new sub-GeV scattering constraints and long-lived mediator reach.

  3. Can a Dark Inferno Melt Earth's Core?

    hep-ph 2025-05 conditional novelty 6.0 of 10

    Dark matter annihilation inside Earth would melt a substantial fraction of the inner core for cross sections previously allowed by surface heat-flow limits.

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