Solar Extreme UV radiation and quark nugget dark matter model

Abstract

Abstract. We advocate the idea that the surprising emission of extreme ultra violet (EUV) radiation and soft x-rays from the Sun are powered externally by incident dark matter (DM) particles. The energy and the spectral shape of this otherwise unexpected solar irradiation is estimated within the quark nugget dark matter model. This model was originally invented as a natural explanation of the observed ratio Ω dark ∼ Ω visible when the DM and visible matter densities assume the same order of magnitude values. This generic consequence of the model is a result of the common origin of both types of matter which are formed during the same QCD transition and both proportional to the same fundamental dimensional parameter Λ QCD .We also present arguments suggesting that the transient brightening-like "nanoflares" in the Sun may be related to the annihilation events which inevitably occur in the solar atmosphere within this dark matter scenario.

New mechanism producing axions in the AQN model and how the CAST can discover them

“…It turns out that if one estimates the extra energy being produced within the AQN dark matter scenario one obtains the total extra energy ∼10 27 erg=s which surprisingly reproduces (1) for the observed EUVand soft x-ray intensities [27]. One should add that the estimate ∼10 27 erg=s for extra energy is derived exclusively in terms of known dark matter density ρ DM ∼ 0.3 GeV cm −3 and dark matter velocity v DM ∼ 10 −3 c surrounding the sun without adjusting any parameters of the model; see Sec.…”

“…III, we highlight the basic arguments of Ref. [27] advocating the idea that the annihilation events of the antinuggets with the solar material can be interpreted as the nanoflares conjectured by Parker long ago. Precisely these annihilation events emit the axions and we compute the intensity and spectral properties of these axions in Sec.…”

“…We interpret this "numerical coincidence" as an additional indication supporting the AQN model. Our original remark relevant for the present work is that if one accepts the explanation [27,28] that the solar corona heating puzzle is resolved within AQN scenario then the axion flux will be unambiguously fixed in terms of the EUV observed luminosity (1) as the axion field represents the crucial element in the AQN construction.…”

“…This is because the dark matter AQNs can play the role of the "invisible" matter in Ref. [29], which triggers otherwise unexpected solar activity sparking also the large flares [30]. Therefore, the observation of the correlation between the EUV intensity and frequency of the flares can be considered as an additional supporting argument of the AQN related dark matter explanation of the observed EUV irradiation (1), because both effects are originated from the same dark matter AQNs.…”

“…2 Nevertheless, this order of magnitude estimate is very suggestive as it roughly coincides with the observed total EUV energy output from corona (1) representing ∼ð10 −7 -10 −6 Þ portion of the total solar luminosity. Precisely this "accidental numerical coincidence" was the main motivation to put forward the idea [27] that (7) represents a new source of energy feeding the EUV and soft x-ray radiation. The numerical simulations [28] strongly support the estimate (7) and entire picture of the framework.…”