The mysterious diffuse UV radiation and axion quark nugget dark matter model

Zhitnitsky, Ariel R.

doi:10.1016/j.physletb.2022.137015

Cited by 10 publications

(18 citation statements)

References 72 publications

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“…The AQNs may also alleviate the tension between standard model cosmology and the recent EDGES observation of a stronger than anticipated 21 cm absorption feature as argued in [ 22 ]. The AQNs may also explain a recently observed “exotic” diffuse UV radiation in our galaxy [ 23 ] with very puzzling features, which are very hard to interpret within conventional astrophysical models [ 24 ]. The AQNs might be also responsible for famed long standing problem of the “Solar Corona Mystery” [ 25 , 26 ] when the so-called “nanoflares” conjectured by Parker long ago [ 27 ] are identified with the annihilation events in the AQN framework.…”

Section: The Aqn Dm Modelmentioning

confidence: 99%

Telescope array bursts, radio pulses and axion quark nuggets

Liang

Zhitnitsky

2022

Eur. Phys. J. C

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Telescope array (TA) experiment has recorded Abbasi et al. (Phys Lett A 381(32):2565–2572, 10.1016/j.physleta.2017.06.022, 2017), Okuda (J Phys Conf Ser 1181:012067, 10.1088/1742-6596/1181/1/012067, 2019) several short time bursts of air shower like events. These bursts are very distinct from conventional single showers, and are found to be strongly correlated with lightnings. In our previous work Zhitnitsky (J Phys G 48(6):065201, 10.1088/1361-6471/abd457, arXiv:2008.04325 [hep-ph], 2021) we proposed that these bursts represent the direct manifestation of the dark matter (DM) annihilation events within the so-called axion quark nugget (AQN) model. In the present work we suggest to test this proposal to search for the radio signals in frequency band $$\nu \in $$ ν ∈ (0.5–200) MHz which must be synchronized with the TA bursts. We argued that the conventional lightning-induced radio emission can be easily discriminated from the AQN-induced radio pulses discussed in this work.

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Section: The Aqn Dm Modelmentioning

confidence: 99%

Telescope array bursts, radio pulses and axion quark nuggets

Liang

Zhitnitsky

2022

Eur. Phys. J. C

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“…It is important to emphasize that in this work with the main goal to study the AQN-induced effects which may impact the structure formation at z ∈ (5 − 15) when ionization fraction x e is expected to be sufficiently large, we use the same basic parameters which had been previously used for variety of different applications in dramatically different environments, including ref. [17] with explanation of the observed puzzling FUV emission at present time. In both cases (present time and high redshifted epoch) the physics is the same and is determined by the coupling [ρ DM (r) • ρ visible (r)], which essentially enters the observed correlation (1).…”

Section: Introductionmentioning

confidence: 53%

“…This expression for x e (T gas ) can be substituted to formulae for brem and coll as given by ( 13) and ( 14) correspondingly to estimate the key parameter, the cooling rate Λ(T gas ) entering formula (12). Assuming that x e (T gas ) 1 one can expand (17) to arrive to the following simplified expression for the cooling rate which is not valid for low temperatures when x e strongly deviates from unity and expansion is not justified, Λ(T gas ) 10 −24 erg cm 3 • s 0.44…”

Section: Dm-visible Matter Couplingmentioning

confidence: 99%

“…Indeed, the analysis carried out in [14][15][16] disproves this conventional picture by demonstrating that the observed FUV radiation is highly symmetric being independent of Galactic longitude in contrast with highly asymmetric localization of the brightest UV emitting stars. It has been suggested in [17] that the puzzling radiation could be originated from the AQN nuggets which indeed are uniformly distributed.…”

Section: Introductionmentioning

confidence: 99%

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Structure Formation Paradigm and Axion Quark Nugget dark matter model

Zhitnitsky¹

2023

Preprint

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We advocate an idea that "non-baryonic" dark matter in form of nuggets made of standard model quarks and gluons (similar to the old idea of the Witten's strangelets) could play a crucial role in structure formation. The corresponding macroscopically large objects, which are called the axion quark nuggets (AQN) behave as chameleons: they do not interact with the surrounding material in dilute environment, but they become strongly interacting objects in sufficiently dense environment. The AQN model was invented long ago with a single motivation to explain the observed similarity Ω DM ∼ Ω visible between visible and DM components. This relation represents a very generic feature of this framework, not sensitive to any parameters of the construction. We argue that the strong visible-DM interaction may dramatically modify the conventional structure formation pattern at small scales to contribute to a resolution of a variety of interconnected problems (such as Core-Cusp problem, etc) which have been a matter of active research and debates in recent years. We also argue that the same visible-DM interaction at small scales is always accompanied by a broad band diffuse radiation. We speculate that the recently observed excesses of the UV emission by JWST at high redshifts and by GALEX in our own galaxy might be a direct manifestation of this AQNinduced radiation. We also speculate that the very same source of energy injection could contribute to the resolution of another long standing problem related to the Extragalactic Background Light (EBL) with known discrepancies in many frequency bands (from UV to optical, IR light and radio emissions).

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“…In particular, there is very strong excess of the diffuse UV emission which cannot be explained by conventional astrophysical sources as it dramatically deviates from locations of the UV emitting stars. As argued in [42] this puzzling diffuse UV emission can be naturally understood within the same AQN framework. One should emphasize that the corresponding estimates in dramatically different environment were based on the same basic parameters of the AQN model, being used in the present proposal interpreting the MME as the AQN annihilation events in the Earth's atmosphere.…”

Section: Radio Pulses and The Distributed Acoustic Sensing (Das)mentioning

confidence: 74%

Probing Fundamental Physics With Multi-Modal Cosmic Ray Events

Beisembaev¹,

Beznosko²,

Baigarin³

et al. 2022

Preprint

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Since the middle of last century, researchers have observed EAS events with more than one pulse from the passage of particles in each detector. These events were called events with a delayed particle at the time, now they are also called multi-modal events. The first registration of such events was described by J. Jelley and W. Whitehouse [1] in 1953. Later, EAS exhibiting the unusual time structures were studied by several independent experiments, see e.g. [2]. EAS events with delayed particles were studied by British and US research groups in the 1960s-1980s, since the 1970s, delayed particles in EAS have been studied in Japan and also carried out at Moscow State University (MSU) and at LPI (TSHASS) and other groups. The conclusions that these articles give do not match and point to the lack of understanding of the nature of events with delayed particles.The Horizon-T experiment in Tien Shan is based on the idea of measuring the time at which EAS disc passes the observation level with nanosecond accuracy. The detector system [3] consists of ten charged particles registration points located at distances of up to several hundred meters from each other. The points are equipped with detectors based on registration of Cherenkov radiation in glass and registration of scintillation light in polystyrene. The detectors register the arrival times of charged particles at the observation level with a resolution of ∼2 ns, as required to study the spatial and temporal characteristics of the EAS and the structure of the multi-modal events specifically. Over the period of the Horizon-T data taking since 2017 to present, a large number of multi-modal events were detected. The data has presented numerous challenges that show the direction towards the further development of the detector system and of the analysis methods and techniques that could be applied to these multi-modal events [4].These recently observed Multi-Modal Cosmic Rays Events (MME) containing multiple peaks separated by tens to hundreds of ns are one of the most puzzling phenomena in high energy cosmic rays. These unusual cosmic ray events offer a potential new insight into the ultra-high energy astrophysics, the physics of fundamental particle interactions and cosmology. Surely, further experimental studies and independent verification of these events both at lower and high altitudes are needed to better understand the MME phenomenology. Theoretical insights are very much needed as well to guide future studies. It was recently proposed in [5] that these MMEs might be result of the dark matter annihilation events within the so-called axion quark nugget (AQN) dark matter model, which was originally invented for completely different purpose to explain the observed similarity between the dark and the visible components in the Universe, i.e. Ω DM ≈ Ω visible , without any fitting parameters.Earlier, in the HADRON experiment on Tien Shan, the possible presence of a non-nuclear component in primary cosmic rays was established and it was assumed that this component coul...

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The mysterious diffuse UV radiation and axion quark nugget dark matter model

Cited by 10 publications

References 72 publications

Telescope array bursts, radio pulses and axion quark nuggets

Telescope array bursts, radio pulses and axion quark nuggets

Structure Formation Paradigm and Axion Quark Nugget dark matter model

Probing Fundamental Physics With Multi-Modal Cosmic Ray Events

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