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 existenceof two different types of DM or a bimodal velocity distribution function for DM. It is shown that, inaddition to the scenario considered in our previous work which is based on the assumption...

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Detalles Bibliográficos
Autores principales: Parnovsky, Serge, Durrer, Ruth, Parnowski, Aleksei
Lenguaje:eng
Publicado: 2022
Materias:
astro-ph.CO
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.31526/LHEP.2023.331
https://dx.doi.org/10.31526/lhep.2023.331
http://cds.cern.ch/record/2853510
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author Parnovsky, Serge
Durrer, Ruth
Parnowski, Aleksei
author_facet Parnovsky, Serge
Durrer, Ruth
Parnowski, Aleksei
author_sort Parnovsky, Serge
collection CERN
description We have analyzed the rate of capture of dark matter (DM) particles by the galaxy in the case of the existenceof two different types of DM or a bimodal velocity distribution function for DM. It is shown that, inaddition to the scenario considered in our previous work which is based on the assumption of a unimodaldistribution, more complex scenarios are possible in which the transition to the state of intense captureand/or exit from it can occur in two stages. A detailed description is given of the change in the curve describingthe rate of capture of dark matter particles as a function of the rate of increase in the baryon massof the galaxy for various values of the rate of decrease of the DM density
id cern-2853510
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28535102023-04-19T03:02:52Zdoi:10.31526/LHEP.2023.331doi:10.31526/lhep.2023.331http://cds.cern.ch/record/2853510engParnovsky, SergeDurrer, RuthParnowski, AlekseiCapture of dark matter particles by a galaxy in the case of a bimodal distribution of their velocitiesastro-ph.COAstrophysics and AstronomyWe have analyzed the rate of capture of dark matter (DM) particles by the galaxy in the case of the existenceof two different types of DM or a bimodal velocity distribution function for DM. It is shown that, inaddition to the scenario considered in our previous work which is based on the assumption of a unimodaldistribution, more complex scenarios are possible in which the transition to the state of intense captureand/or exit from it can occur in two stages. A detailed description is given of the change in the curve describingthe rate of capture of dark matter particles as a function of the rate of increase in the baryon massof the galaxy for various values of the rate of decrease of the DM densityWe 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 an 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.arXiv:2209.01819oai:cds.cern.ch:28535102022-09-05
spellingShingle astro-ph.CO
Astrophysics and Astronomy
Parnovsky, Serge
Durrer, Ruth
Parnowski, Aleksei
Capture of dark matter particles by a galaxy in the case of a bimodal distribution of their velocities
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 astro-ph.CO
Astrophysics and Astronomy
url https://dx.doi.org/10.31526/LHEP.2023.331
https://dx.doi.org/10.31526/lhep.2023.331
http://cds.cern.ch/record/2853510
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AT durrerruth captureofdarkmatterparticlesbyagalaxyinthecaseofabimodaldistributionoftheirvelocities
AT parnowskialeksei captureofdarkmatterparticlesbyagalaxyinthecaseofabimodaldistributionoftheirvelocities

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