Results 261 to 270 of about 28,645 (286)
Search for dark matter annihilation in the Milky Way halo
Physical Review D, 2018 The Milky Way halo is the brightest source of dark matter annihilation on the sky. Indeed, the potential strength of the Galactic dark matter signal can supersede that expected from dwarf galaxies and galaxy groups even in regions away from the Inner Galaxy.
Laura J Chang +2 more
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The Dark Matter halo of the Milky Way, AD 2013 [PDF]
Journal of Cosmology and Astroparticle Physics, 2013 We derive the mass model of the Milky Way (MW) using a cored dark matter (DM) halo profile and recent data. The method used consists in fitting a spherically symmetric model of the Galaxy with a Burkert DM halo profile to available data: MW terminal velocities in the region inside the solar circle, circular velocity as recently estimated from maser ...
Fabrizio Nesti, Paolo Salucci
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How Lumpy Is the Milky Way’s Dark Matter Halo? [PDF]
Astrophysical Journal, 2002 CDM simulations predict that there are hundreds of lumps of with masses greater than 10e7 solar masses in the Milky Way halo. However, we know of only a dozen dwarf satellites close to this mass. Are these lumps simply lacking in stars or is there a fundamental flaw in our most popular cosmology?
Kathryn V Johnston, David N Spergel
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Dark matter halo cores and the tidal survival of Milky Way satellites
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT The cuspy central density profiles of cold dark matter (CDM) haloes make them highly resilient to disruption by tides. Self-interactions between dark matter particles, or the cycling of baryons, may result in the formation of a constant-density core that would make haloes more susceptible to tidal disruption.
Raphaël Errani +2 more
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Analysis methods for Milky Way dark matter halo detection [PDF]
AIP Conference Proceedings, 2007 We present methods for the analysis of dark matter annihilation in the smooth halo of the Milky Way galaxy. We model the diffuse gamma-ray background using GALPROP, and model the halo using an NFW profile and the gamma-ray spectrum for WIMP pair annihilation.
Igor V Moskalenko
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The impact of inelastic self-interacting dark matter on the dark matter structure of a Milky Way halo [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 Abstract We study the effects of inelastic dark matter self-interactions on the internal structure of a simulated Milky Way (MW)-size halo. Self-interacting dark matter (SIDM) is an alternative to collisionless cold dark matter (CDM) which offers a unique solution to the problems encountered with CDM on sub-galactic scales.
Kun Ting Eddie Chua +2 more
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Streams and the Milky Way dark matter halo
Proceedings of the International Astronomical Union, 2019AbstractWe describe an algorithm that can fit the properties of the dwarf galaxy progenitor of a tidal stream, given the properties of that stream. We show that under ideal conditions (the Milky Way potential, the orbit of the dwarf galaxy progenitor, and the functional form of the dwarf galaxy progenitor are known exactly), the density and angular ...
Heidi Jo Newberg +18 more
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THE SPACE MOTION OF LEO I: THE MASS OF THE MILKY WAY'S DARK MATTER HALO [PDF]
Astrophysical Journal, 2013 We combine our Hubble Space Telescope measurement of the proper motion of the Leo I dwarf spheroidal galaxy (presented in a companion paper) with the highest resolution numerical simulations of Galaxy-size dark matter halos in existence to constrain the mass of the Milky Way's dark matter halo (M_MW).
Michael Boylan-Kolchin +2 more
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On the Dark Matter Halo of the Milky Way: Anisotropic Pressure
International Journal of Theoretical PhysicszbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Probing the shape of the Milky Way dark matter halo with hypervelocity stars: A new method
Astronomy and Astrophysics, 2022Arianna Gallo +2 more
exaly