Matches in SemOpenAlex for { <https://semopenalex.org/work/W2002204573> ?p ?o ?g. }
- W2002204573 abstract "Through numerical simulations, we study the dissolution timescale of the Ursa Minor cold stellar clump, due to the combination of phase-mixing and gravitational encounters with compact dark substructures in the halo of Ursa Minor. We compare two scenarios; one where the dark halo is made up by a smooth mass distribution of light particles and one where the halo contains 10% of its mass in the form of substructures (subhalos). In a smooth halo, the stellar clump survives for a Hubble time provided that the dark matter halo has a big core. In contrast, when the point-mass dark substructures are added, the clump survives barely for sim 1.5 Gyr. These results suggest a strong test to the Lambda-cold dark matter scenario at dwarf galaxy scale." @default.
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- W2002204573 date "2012-09-06" @default.
- W2002204573 modified "2023-10-02" @default.
- W2002204573 title "DARK MATTER SUBHALOS IN THE URSA MINOR DWARF GALAXY" @default.
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- W2002204573 doi "https://doi.org/10.1088/0004-637x/757/1/87" @default.
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