Academic Journal
Decaying dark matter in halos of primordial black holes
| Title: | Decaying dark matter in halos of primordial black holes |
|---|---|
| Authors: | Florian Kühnel, Tommy Ohlsson |
| Source: | European Physical Journal C: Particles and Fields, Vol 79, Iss 8, Pp 1-5 (2019) |
| Publisher Information: | SpringerOpen, 2019. |
| Publication Year: | 2019 |
| Collection: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| Subject Terms: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| More Details: | Abstract We investigate photon signatures of general decaying dark-matter particles in halos of primordial black holes. We derive the halo-profile density and the total decay rate for these combined dark-matter scenarios. For the case of axion-like particles of masses below $$\mathcal {O}( 1 )\mathrm{keV}$$ O(1)keV , we find strong bounds on the decay constant which are several orders of magnitude stronger than the strongest existing bounds, for all halo masses above $$\mathcal {O}( 10^{-5} )$$ O(10-5) solar masses. Using future X-ray measurements, it will be possible to push these bounds on such combined dark-matter scenarios even further. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1434-6044 1434-6052 |
| Relation: | http://link.springer.com/article/10.1140/epjc/s10052-019-7173-x; https://doaj.org/toc/1434-6044; https://doaj.org/toc/1434-6052 |
| DOI: | 10.1140/epjc/s10052-019-7173-x |
| Access URL: | https://doaj.org/article/892012fd5ae047b7a64996ec84ebd69c |
| Accession Number: | edsdoj.892012fd5ae047b7a64996ec84ebd69c |
| Database: | Directory of Open Access Journals |
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| ISSN: | 14346044 14346052 |
|---|---|
| DOI: | 10.1140/epjc/s10052-019-7173-x |
| Published in: | European Physical Journal C: Particles and Fields |
| Language: | English |