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Searching for Light in the Darkness: Bounds on ALP Dark Matter with the optical MUSE-Faint survey

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arxiv 2009.01310 v2 pith:DX64UCXB submitted 2020-09-02 astro-ph.CO astro-ph.GAhep-ph

Marco Regis , Marco Taoso , Daniel Vaz , Jarle Brinchmann , Sebastiaan L. Zoutendijk , Nicolas F. Bouché , Matthias Steinmetz This is my paper · ORCID
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keywords alpsboundsdarkmatteralp-two-photonassumptionaxioncomponent
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We use MUSE spectroscopic observations of the dwarf spheroidal galaxy Leo T between 470 and 935 nm to search for radiative decays of axion like particles (ALPs). Under the assumption that ALPs constitute the dark matter component of the Leo T halo, we derive bounds on the effective ALP-two-photon coupling. We improve existing limits by more than one order of magnitude in the ALP mass range 2.7-5.3 eV.

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Forward citations

Cited by 5 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. Indirect Detection of Hot Dark Matter

    hep-ph 2024-12 conditional novelty 6.0 of 10

    Using two clustering mechanisms, concurrent collapse and gravitational clustering, the authors derive hot dark matter density profiles and recast CDM telescope bounds into axion-photon coupling limits for 1 to 10 eV axions.

  3. Searching for axion-like particles with SPHEREx

    astro-ph.CO 2024-12 conditional novelty 6.0 of 10

    SPHEREx should improve current limits on the axion-photon coupling for 0.5-3 eV ALP dark matter by observing the Milky Way halo in its deep field, the LMC, and dwarf spheroidals.

  4. Bounds on Axions-Like Particles Shining in the Ultra-Violet

    hep-ph 2024-12 accept novelty 6.0 of 10

    Using archival HST far-UV spectra, the authors exclude gaγ above 10^-12 GeV^-1 for ALP dark matter masses 14.4-22.2 eV, about one order of magnitude stronger than earlier limits.

  5. Constraining eV-scale axion-like particle dark matter: insights from the M87 Galaxy

    hep-ph 2025-01 conditional novelty 5.0 of 10

    Using M87's infrared-to-ultraviolet observations, the authors constrain the axion-photon coupling for eV-scale axion-like particle dark matter, claiming order-of-magnitude improvements over previous bounds at masses f...

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