2016
DOI: 10.1088/1475-7516/2016/03/060
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Dark matter implications of the WMAP-Planck Haze

Abstract: Gamma rays and microwave observations of the Galactic Center and surrounding areas indicate the presence of anomalous emission, whose origin remains ambiguous. The possibility of dark matter annihilation explaining both signals through prompt emission at gamma rays and secondary emission at microwave frequencies from interactions of highenergy electrons produced in annihilation with the Galactic magnetic fields has attracted much interest in recent years. We investigate the dark matter interpretation of the Ga… Show more

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Cited by 19 publications
(22 citation statements)
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References 124 publications
(237 reference statements)
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“…The hard edge-like structures observed for Fermi bubbles disfavor its DM-induced origin. However, it is still possible that some part of the WMAP/Planck haze are not due to the Fermi bubbles and can be better fitted with DM annihilations associated with subsequent microwave synchrotron emission (see, e.g., [346]).…”
Section: Gamma Rays: Limits and Galactic Center Excessmentioning
confidence: 99%
“…The hard edge-like structures observed for Fermi bubbles disfavor its DM-induced origin. However, it is still possible that some part of the WMAP/Planck haze are not due to the Fermi bubbles and can be better fitted with DM annihilations associated with subsequent microwave synchrotron emission (see, e.g., [346]).…”
Section: Gamma Rays: Limits and Galactic Center Excessmentioning
confidence: 99%
“…Secondary emission plays an important role in the interpretation of excess emission in this energy range due to the many processes that can contribute. Bounds on a dark matter origin have been derived using multi-wavelength observations [137,138] and cosmic-ray data [137,139].…”
Section: The Gev Excessmentioning
confidence: 99%
“…With the improved data set, morphological features in the Planck Haze have been detected which strongly point to a common origin with the Fermi Bubbles, in particular a sharp edge in the microwave Haze aligned with the edge observed in the Fermi Bubbles. However, it is still possible that some fraction of the Haze does have a dark matter origin, which could be the microwave counterpart of the GeV excess in the Inner Galaxy [138]. 6.3.…”
Section: The Wmap/planck Hazementioning
confidence: 99%
“…[104] and [105] and references therein). In any event, a component of synchrotron radiation from e − and e + produced in DM annihilation (accelerated in magnetic fields) could contribute to the "Haze" and present upper limits on this component do not contradict the DM parameter regions needed to fit the GC γ-ray excess [101].…”
Section: Indirect Detection Limits On the Gc Gev γ-Ray Excess And Ligmentioning
confidence: 75%