Relieving Tensions Related to the Dark Matter Interpretation of the Fermi-LAT Data
Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China
Received: 7 June 2018 / Revised: 17 August 2018 / Accepted: 20 August 2018 / Published: 29 August 2018
PDF [266 KB, uploaded 19 September 2018]
Recently, many studies indicate that the GeV gamma ray excess signal from the central Milky Way can be best explained by ∼40–50 GeV dark matter annihilating via the
channel. However, this model appears to be disfavored by the recent Fermi-LAT data for dwarf spheroidal galaxies and the constraint from synchrotron radiation. In this article, we describe a consistent picture to relieve the tensions between the dark matter annihilation model and the observations. We show that a baryonic feedback process is the key to alleviate the tensions and the ∼40–50 GeV dark matter model is still the best one to account for the GeV gamma ray excess in the Milky Way.
This is an open access article distributed under the Creative Commons Attribution License
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
Share & Cite This Article
MDPI and ACS Style
Chan, M.H. Relieving Tensions Related to the Dark Matter Interpretation of the Fermi-LAT Data. Galaxies 2018, 6, 92.
Chan MH. Relieving Tensions Related to the Dark Matter Interpretation of the Fermi-LAT Data. Galaxies. 2018; 6(3):92.
Chan, Man H. 2018. "Relieving Tensions Related to the Dark Matter Interpretation of the Fermi-LAT Data." Galaxies 6, no. 3: 92.
Show more citation formats
Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
[Return to top]
For more information on the journal statistics, click here
Multiple requests from the same IP address are counted as one view.