Dark Matter and Dark Radiation from Axion-Like-Particles

  • 分類 理論セミナー
  • 開始 2015/02/04(水)11:00
  • 終了 2015/02/04(水)12:00
  • 会場 Kenkyu Honkan 1F Meeting Room 3
  • 講演タイトル
  • 講演者 Markus Rummel (U of Oxford)
  • 言語 英語/English
  • 連絡先 住友洋介
  • ウェブサイト
  • 食堂・売店 /0


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.