Journal Article10.1103/PHYSREVLETT.83.1719
Dark Matter Annihilation at the Galactic Center
776
TL;DR: In this article, a neutrino telescope observing the galactic center could probe the inner structure of the dark halo or indirectly find the nature of dark matter or indirectly reveal the existence of neutrinos.
read more
Abstract: Cold dark matter near the galactic center is accreted by the central black hole into a dense spike. Particle dark matter annihilation makes the spike a compact source of photons, electrons, positrons, protons, antiprotons, and neutrinos. The spike luminosity depends on the halo density profile: halos with finite cores have unnoticeable spikes; halos with inner cusps may have spikes so bright that the absence of a neutrino signal from the galactic center already places upper limits on the density slope of the inner halo. Future neutrino telescopes observing the galactic center could probe the inner structure of the dark halo or indirectly find the nature of dark matter.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Galactic Searches for Dark Matter
TL;DR: For nearly a century, more mass has been measured in galaxies than is contained in the luminous stars and gas as discussed by the authors, and it has become clear that the dark matter in galaxies is not comprised of known astronomical objects or baryonic matter.
226
Tev gamma-ray observations of the galactic center
K. Kosack,H. M. Badran,I. H. Bond,P. J. Boyle,S. M. Bradbury,J. H. Buckley,D. A. Carter-Lewis,O. Celik,Valerie Connaughton,Wei Cui,M. K. Daniel,M. D'Vali,I. de la Calle Perez,C. Duke,Abraham D. Falcone,D. J. Fegan,S. J. Fegan,J. P. Finley,Lucy Fortson,Lucy Fortson,J. A. Gaidos,S. Gammell,K. G. Gibbs,G. H. Gillanders,J. Grube,K. J. Gutierrez,J. Hall,Tony Hall,D. S. Hanna,A. M. Hillas,Jamie Holder,D. Horan,A. Jarvis,M. Jordan,G. E. Kenny,M. Kertzman,David Kieda,John Kildea,J. Knapp,Henric Krawczynski,F. Krennrich,M. J. Lang,S. Le Bohec,E. Linton,J. Lloyd-Evans,A. Milovanovic,J. McEnery,P. Moriarty,Dietrich Müller,T. N. Nagai,S. J. Nolan,R. A. Ong,R. Pallassini,D. Petry,B. Power-Mooney,John L. Quinn,Mark N. Quinn,K. Ragan,P. Rebillot,P. T. Reynolds,H. J. Rose,M. Schroedter,G. H. Sembroski,S. P. Swordy,A. Syson,V. V. Vassiliev,S. P. Wakely,G. Walker,T. C. Weekes,Jeffrey Zweerink +69 more
TL;DR: In this paper, the authors reported a possible detection of TeV gamma rays from the Galactic center by the Whipple 10 m gamma-ray telescope, which corresponds to an integral flux of 1.6 × 10-8 ± 0.7 σ, roughly 40% of the flux from the Crab Nebula at this energy.
Gamma Ray Signals from Dark Matter: Concepts, Status and Prospects
TL;DR: Weakly interacting massive particles (WIMPs) remain a prime candidate for the cosmological dark matter (DM), even in the absence of current collider signals that would unambiguously point to new physics below the TeV scale as discussed by the authors.
221
Neutrino Constraints on the Dark Matter Total Annihilation Cross Section
TL;DR: In this paper, the authors focus on the signal arising from the whole Milky Way halo, which is less sensitive to uncertainties in the dark matter distribution, and especially for flatter profiles, this signal is larger than the cosmic signal.
Dark matter evidence, particle physics candidates and detection methods
TL;DR: In this article, a short history of the dark matter in the universe is given, and several of the most obvious particle candidates for dark matter are identified, focusing on weakly interacting, massive particles (WIMPs).
220
References
Resolving the Structure of Cold Dark Matter Halos
TL;DR: In this paper, the authors examined the effects of mass resolution and force softening on the density profiles of cold dark matter halos that form within cosmological N-body simulations.
1.1K
High Proper-Motion Stars in the Vicinity of Sagittarius A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy
TL;DR: In this article, the distribution of matter in the few central parsecs of the Galaxy is estimated using the motion of the stars and gas in the vicinity of the putative central black hole.
855
Observability of γ rays from dark matter neutralino annihilations in the Milky Way halo
TL;DR: In this paper, the authors make a detailed phenomenological study of the possible detection rates given these three pieces of new information, and show that the proposed upgrade of the Whipple telescope will make it sensitive to a region of parameter space, with substantial improvements possible with the planned new generation of Air Cherenkov Telescope Arrays.
721
Analytical models for galactic nuclei
TL;DR: A general family of dynamical models with simple analytical potential-density pairs suited to model galactic bulges and nuclei with double power-law radial density profiles and an optional central black hole is presented in this paper.
713
Observations of stellar proper motions near the Galactic Centre
Andreas Eckart,Reinhard Genzel +1 more
TL;DR: In this article, the authors reported the proper motions (motions in the plane of the sky) of 39 stars located between 004 and 04 pc from the Galactic Centre and found that the velocity dispersion estimated from these proper motions is in excellent agreement with that obtained from the radial velocities, indicating that the average velocity field is close to isotropic.
481