Galaxy formation in semi-analytic models with sterile neutrino dark matter
Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
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.
Originalsprog | Engelsk |
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Titel | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings |
Redaktører | Remo Ruffini, Massimo Bianchi, Remo Ruffini, Robert T Jantzen |
Antal sider | 6 |
Forlag | World Scientific Publishing Co. Pte. Ltd. |
Publikationsdato | 1 jan. 2018 |
Sider | 2441-2446 |
ISBN (Elektronisk) | 9789813226593 |
Status | Udgivet - 1 jan. 2018 |
Begivenhed | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Rome, Italien Varighed: 12 jul. 2015 → 18 jul. 2015 |
Konference
Konference | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories |
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Land | Italien |
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) |
Navn | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings |
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ID: 229313011