Rafiei Karkevandi, Davood ; Shahrbaf, Mahboubeh ; Shakeri, Soroush ; Typel, Stefan (2024)
Exploring the Distribution and Impact of Bosonic Dark Matter in Neutron Stars.
In: Particles, 7 (1)
doi: 10.3390/particles7010011
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
The presence of dark matter (DM) within neutron stars (NSs) can be introduced by different accumulation scenarios in which DM and baryonic matter (BM) may interact only through the gravitational force. In this work, we consider asymmetric self-interacting bosonic DM, which can reside as a dense core inside the NS or form an extended halo around it. It is seen that depending on the boson mass (mχ), self-coupling constant (λ) and DM fraction (Fχ), the maximum mass, radius and tidal deformability of NSs with DM admixture will be altered significantly. The impact of DM causes some modifications in the observable features induced solely by the BM component. Here, we focus on the widely used nuclear matter equation of state (EoS) called DD2 for describing NS matter. We show that by involving DM in NSs, the corresponding observational parameters will be changed to be consistent with the latest multi-messenger observations of NSs. It is seen that for mχ≳200 MeV and λ≲2π, DM-admixed NSs with 4%≲Fχ≲20% are consistent with the maximum mass and tidal deformability constraints.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Rafiei Karkevandi, Davood ; Shahrbaf, Mahboubeh ; Shakeri, Soroush ; Typel, Stefan |
| Art des Eintrags: | Bibliographie |
| Titel: | Exploring the Distribution and Impact of Bosonic Dark Matter in Neutron Stars |
| Sprache: | Englisch |
| Publikationsjahr: | 3 März 2024 |
| Ort: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Particles |
| Jahrgang/Volume einer Zeitschrift: | 7 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.3390/particles7010011 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The presence of dark matter (DM) within neutron stars (NSs) can be introduced by different accumulation scenarios in which DM and baryonic matter (BM) may interact only through the gravitational force. In this work, we consider asymmetric self-interacting bosonic DM, which can reside as a dense core inside the NS or form an extended halo around it. It is seen that depending on the boson mass (mχ), self-coupling constant (λ) and DM fraction (Fχ), the maximum mass, radius and tidal deformability of NSs with DM admixture will be altered significantly. The impact of DM causes some modifications in the observable features induced solely by the BM component. Here, we focus on the widely used nuclear matter equation of state (EoS) called DD2 for describing NS matter. We show that by involving DM in NSs, the corresponding observational parameters will be changed to be consistent with the latest multi-messenger observations of NSs. It is seen that for mχ≳200 MeV and λ≲2π, DM-admixed NSs with 4%≲Fχ≲20% are consistent with the maximum mass and tidal deformability constraints. |
| Freie Schlagworte: | bosonic dark matter, neutron star, two-fluid TOV equations, tidal deformability |
| Zusätzliche Informationen: | Erstveröffentlichung; This article belongs to the Special Issue Selected Papers from “Dark Matter and Stars: Multi-Messenger Probes of Dark Matter and Modified Gravity” |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik |
| Hinterlegungsdatum: | 08 Mai 2024 06:02 |
| Letzte Änderung: | 08 Mai 2024 06:03 |
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| Zugehörige Links: | |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Exploring the Distribution and Impact of Bosonic Dark Matter in Neutron Stars. (deposited 07 Mai 2024 09:36)
- Exploring the Distribution and Impact of Bosonic Dark Matter in Neutron Stars. (deposited 08 Mai 2024 06:02) [Gegenwärtig angezeigt]
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