Galaxy formation in semi-analytic models with sterile neutrino dark matter
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
The sterile neutrino is a viable dark matter candidate that can be produced in the early Universe with a highly non-thermal spectrum of primordial velocities, and would thus have an effect on the abundance of dwarf galaxies. We use sterile neutrino power spectra as an input for semi-analytic models of galaxy formation in order to predict the number of luminous satellite galaxies in a Milky Way-like halo. By assuming that the mass of the Milky Way halo must be no more than 2 × 1012M (the adopted upper bound based on current astronomical observations) we are able to constrain the value of L6 for Ms ≤ 5 keV. We also show that the range of L6 that is in best agreement with the 3.5 keV line (if produced by decays of 7 keV sterile neutrino) requires that the Milky Way halo has a mass no smaller than 1.2 × 1012M.
Original language | English |
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Title of host publication | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings |
Editors | Remo Ruffini, Massimo Bianchi, Remo Ruffini, Robert T Jantzen |
Number of pages | 6 |
Publisher | World Scientific Publishing Co. Pte. Ltd. |
Publication date | 1 Jan 2018 |
Pages | 2441-2446 |
ISBN (Electronic) | 9789813226593 |
Publication status | Published - 1 Jan 2018 |
Event | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Rome, Italy Duration: 12 Jul 2015 → 18 Jul 2015 |
Conference
Conference | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories |
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Land | Italy |
By | Rome |
Periode | 12/07/2015 → 18/07/2015 |
Sponsor | et al., International Center for Relativistic Astrophysics Network (ICRANet), International Centre for Theoretical Physics (ICTP), International Union of Pure and Applied Physics (IUPAP), Istituto Nazionale di Fisica Nucleare (INFN), The Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) |
Series | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings |
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- Dark matter, Galaxy formation, Local group
Research areas
ID: 229313011