Capture of Dark Matter Particles by a Galaxy in the Case of a Bimodal Distribution of Their Velocities
We have analyzed the rate of capture of dark matter (DM) particles by the galaxy in the case of the existence of two different types of DM or a bimodal velocity distribution function for DM. It is shown that, in addition to the scenario considered in our previous work which is based on the assumpti...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Andromeda Publishing and Academic Services
2023-02-01
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| Series: | Letters in High Energy Physics |
| Subjects: | |
| Online Access: | http://journals.andromedapublisher.com/index.php/LHEP/article/view/331 |
| _version_ | 1797893866636967936 |
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| author | Serge Parnovsky Ruth Durrer Aleksei Parnowski |
| author_facet | Serge Parnovsky Ruth Durrer Aleksei Parnowski |
| author_sort | Serge Parnovsky |
| collection | DOAJ |
| description |
We have analyzed the rate of capture of dark matter (DM) particles by the galaxy in the case of the existence
of two different types of DM or a bimodal velocity distribution function for DM. It is shown that, in
addition to the scenario considered in our previous work which is based on the assumption of a unimodal
distribution, more complex scenarios are possible in which the transition to the state of intense capture
and/or exit from it can occur in two stages. A detailed description is given of the change in the curve describing
the rate of capture of dark matter particles as a function of the rate of increase in the baryon mass
of the galaxy for various values of the rate of decrease of the DM density
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| first_indexed | 2024-04-10T06:59:48Z |
| format | Article |
| id | doaj.art-b2fad2fab78845e6aa8c771e30473e4c |
| institution | Directory Open Access Journal |
| issn | 2632-2714 |
| language | English |
| last_indexed | 2024-04-10T06:59:48Z |
| publishDate | 2023-02-01 |
| publisher | Andromeda Publishing and Academic Services |
| record_format | Article |
| series | Letters in High Energy Physics |
| spelling | doaj.art-b2fad2fab78845e6aa8c771e30473e4c2023-02-28T01:18:09ZengAndromeda Publishing and Academic ServicesLetters in High Energy Physics2632-27142023-02-012023110.31526/lhep.2023.331Capture of Dark Matter Particles by a Galaxy in the Case of a Bimodal Distribution of Their VelocitiesSerge Parnovsky0Ruth DurrerAleksei ParnowskiTaras Shevchenko National University of Kyiv We have analyzed the rate of capture of dark matter (DM) particles by the galaxy in the case of the existence of two different types of DM or a bimodal velocity distribution function for DM. It is shown that, in addition to the scenario considered in our previous work which is based on the assumption of a unimodal distribution, more complex scenarios are possible in which the transition to the state of intense capture and/or exit from it can occur in two stages. A detailed description is given of the change in the curve describing the rate of capture of dark matter particles as a function of the rate of increase in the baryon mass of the galaxy for various values of the rate of decrease of the DM density http://journals.andromedapublisher.com/index.php/LHEP/article/view/331dark mattergalaxy formation |
| spellingShingle | Serge Parnovsky Ruth Durrer Aleksei Parnowski Capture of Dark Matter Particles by a Galaxy in the Case of a Bimodal Distribution of Their Velocities Letters in High Energy Physics dark matter galaxy formation |
| title | Capture of Dark Matter Particles by a Galaxy in the Case of a Bimodal Distribution of Their Velocities |
| title_full | Capture of Dark Matter Particles by a Galaxy in the Case of a Bimodal Distribution of Their Velocities |
| title_fullStr | Capture of Dark Matter Particles by a Galaxy in the Case of a Bimodal Distribution of Their Velocities |
| title_full_unstemmed | Capture of Dark Matter Particles by a Galaxy in the Case of a Bimodal Distribution of Their Velocities |
| title_short | Capture of Dark Matter Particles by a Galaxy in the Case of a Bimodal Distribution of Their Velocities |
| title_sort | capture of dark matter particles by a galaxy in the case of a bimodal distribution of their velocities |
| topic | dark matter galaxy formation |
| url | http://journals.andromedapublisher.com/index.php/LHEP/article/view/331 |
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