Matches in SemOpenAlex for { <https://semopenalex.org/work/W4384388358> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W4384388358 abstract "We develop a comprehensive study of the gamma-ray flux observed by H.E.S.S. in 5 regions of the Galactic Center (GC). Motivated by previous works on a possible Dark Matter (DM) explanation for the TeV cut-off observed in the innermost $sim 16$ pc of the Galaxy, we aim to constrain the DM density profile up to a radius $sim 450$ pc from the GC. In this region, cosmological simulations and Galactic dynamics studies fail to produce a strong prediction of the DM profile. With our proof-of-concept analysis, we set upper limits on the density distribution of thermal multi-TeV WIMPs, compatible with the observed gamma-ray flux. The results agree with the hypothesis of a DM density enhancement in the GC with respect to the benchmark NFW profile ($gamma=1$) and allow us to exclude profiles with a slope $gamma gtrsim 1.3$. We also investigate the possibility that such an enhancement could be related to the existence of a DM spike associated with the supermassive black hole Sgr A*. We find out that the existence of an adiabatic DM spike smoothed by the scattering off of WIMPs by the bulge stars may be consistent with the observed gamma-ray flux if the spike forms on an underlying generalized NFW profile with $gamma lesssim 0.8$, corresponding to a spike slope $gamma_{sp-star}= 1.5$ and radius $R_text{sp-stars} sim 25$-$30$ pc. Instead, in the extreme case of the instantaneous growth of the black hole, the profile could have up to $gamma sim 1.2$, a corresponding $gamma_{sp-inst}=1.4$ and $R_text{sp-inst}sim 15$-$25$ pc. Moreover, the results of our analysis of the total DM mass enclosed within the S2 orbit are less stringent than the spectral analysis. Our work aims to guide future studies of the GC region, with both current and next-generation telescopes, like the next Cherenkov Telescope Array, that will be able to scan the GC with improved flux sensitivity and angular resolution." @default.
- W4384388358 created "2023-07-15" @default.
- W4384388358 creator A5006308552 @default.
- W4384388358 creator A5007555624 @default.
- W4384388358 creator A5017387826 @default.
- W4384388358 creator A5078587967 @default.
- W4384388358 creator A5092474525 @default.
- W4384388358 date "2023-07-13" @default.
- W4384388358 modified "2023-10-16" @default.
- W4384388358 title "Multi-TeV dark matter density in the inner Milky Way halo: spectral and dynamical constraints" @default.
- W4384388358 doi "https://doi.org/10.48550/arxiv.2307.06823" @default.
- W4384388358 hasPublicationYear "2023" @default.
- W4384388358 type Work @default.
- W4384388358 citedByCount "0" @default.
- W4384388358 crossrefType "posted-content" @default.
- W4384388358 hasAuthorship W4384388358A5006308552 @default.
- W4384388358 hasAuthorship W4384388358A5007555624 @default.
- W4384388358 hasAuthorship W4384388358A5017387826 @default.
- W4384388358 hasAuthorship W4384388358A5078587967 @default.
- W4384388358 hasAuthorship W4384388358A5092474525 @default.
- W4384388358 hasBestOaLocation W43843883581 @default.
- W4384388358 hasConcept C104954878 @default.
- W4384388358 hasConcept C10767094 @default.
- W4384388358 hasConcept C121332964 @default.
- W4384388358 hasConcept C132552067 @default.
- W4384388358 hasConcept C150846664 @default.
- W4384388358 hasConcept C159249277 @default.
- W4384388358 hasConcept C173120059 @default.
- W4384388358 hasConcept C178635117 @default.
- W4384388358 hasConcept C184665706 @default.
- W4384388358 hasConcept C191897082 @default.
- W4384388358 hasConcept C192562407 @default.
- W4384388358 hasConcept C31258907 @default.
- W4384388358 hasConcept C38652104 @default.
- W4384388358 hasConcept C41008148 @default.
- W4384388358 hasConcept C44870925 @default.
- W4384388358 hasConcept C50341732 @default.
- W4384388358 hasConcept C555520305 @default.
- W4384388358 hasConcept C68709404 @default.
- W4384388358 hasConcept C74172769 @default.
- W4384388358 hasConcept C88148261 @default.
- W4384388358 hasConcept C89305328 @default.
- W4384388358 hasConcept C98444146 @default.
- W4384388358 hasConceptScore W4384388358C104954878 @default.
- W4384388358 hasConceptScore W4384388358C10767094 @default.
- W4384388358 hasConceptScore W4384388358C121332964 @default.
- W4384388358 hasConceptScore W4384388358C132552067 @default.
- W4384388358 hasConceptScore W4384388358C150846664 @default.
- W4384388358 hasConceptScore W4384388358C159249277 @default.
- W4384388358 hasConceptScore W4384388358C173120059 @default.
- W4384388358 hasConceptScore W4384388358C178635117 @default.
- W4384388358 hasConceptScore W4384388358C184665706 @default.
- W4384388358 hasConceptScore W4384388358C191897082 @default.
- W4384388358 hasConceptScore W4384388358C192562407 @default.
- W4384388358 hasConceptScore W4384388358C31258907 @default.
- W4384388358 hasConceptScore W4384388358C38652104 @default.
- W4384388358 hasConceptScore W4384388358C41008148 @default.
- W4384388358 hasConceptScore W4384388358C44870925 @default.
- W4384388358 hasConceptScore W4384388358C50341732 @default.
- W4384388358 hasConceptScore W4384388358C555520305 @default.
- W4384388358 hasConceptScore W4384388358C68709404 @default.
- W4384388358 hasConceptScore W4384388358C74172769 @default.
- W4384388358 hasConceptScore W4384388358C88148261 @default.
- W4384388358 hasConceptScore W4384388358C89305328 @default.
- W4384388358 hasConceptScore W4384388358C98444146 @default.
- W4384388358 hasLocation W43843883581 @default.
- W4384388358 hasOpenAccess W4384388358 @default.
- W4384388358 hasPrimaryLocation W43843883581 @default.
- W4384388358 hasRelatedWork W1994702306 @default.
- W4384388358 hasRelatedWork W2006273162 @default.
- W4384388358 hasRelatedWork W2047664697 @default.
- W4384388358 hasRelatedWork W2061431996 @default.
- W4384388358 hasRelatedWork W2065331697 @default.
- W4384388358 hasRelatedWork W2112456186 @default.
- W4384388358 hasRelatedWork W2136194486 @default.
- W4384388358 hasRelatedWork W2781648741 @default.
- W4384388358 hasRelatedWork W2809558204 @default.
- W4384388358 hasRelatedWork W4200245431 @default.
- W4384388358 isParatext "false" @default.
- W4384388358 isRetracted "false" @default.
- W4384388358 workType "article" @default.