理論セミナー

日時: 2015-02-04 11:00 - 12:00
場所: Kenkyu Honkan 1F Meeting Room 3
会議名: Dark Matter and Dark Radiation from Axion-Like-Particles
連絡先: 住友洋介
講演者: Markus Rummel  (U of Oxford)
講演言語: 英語
アブストラクト: First, we discuss the possibility of explaining the 3.5 keV line through dark matter decaying to axion-like particles that subsequently convert to photons in astrophysical magnetic fields. This model is consistent with all present observations of the 3.5 keV line, including galaxy clusters, spiral and dwarf galaxies and the galactic centre. Then, we discuss how a Cosmic-ALP-background can explain the excess of Soft X-rays in galaxy clusters.

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