Neutrino production in Population III microquasars

Carulli, Agustín M.; Reynoso, Matías M.; Romero, Gustavo E.

doi:10.1016/j.astropartphys.2021.102557

Cited by 8 publications

(2 citation statements)

References 70 publications

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“…Thus, the particle acceleration and production scenarios are the same as those proposed for the Galactic XRB jet sources (see, e.g., [437,438]), using the same prescription developed for CR production in AGN jets (see, e.g., [439,440]). The energetic particles that result from acceleration in the jets, presumably through shocks, would interact with the ambient radiation field through pγ interactions, or pp interactions with baryonic matter in the cocoon/envelope close outside the binary, or in a nebula at a larger distance (see, e.g., [441]) (see Figure 7). In this scenario, particle acceleration and hence CR production and interactions in the Pop III XRBs are analogous to those in the microquasars SS433 and Cyg X-3 described earlier in this section.…”

Section: Pop III X-ray Binariesmentioning

confidence: 99%

Cosmic Ray Processes in Galactic Ecosystems

Owen

Inoue

et al. 2023

Galaxies

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Galaxy evolution is an important topic, and our physical understanding must be complete to establish a correct picture. This includes a thorough treatment of feedback. The effects of thermal–mechanical and radiative feedback have been widely considered; however, cosmic rays (CRs) are also powerful energy carriers in galactic ecosystems. Resolving the capability of CRs to operate as a feedback agent is therefore essential to advance our understanding of the processes regulating galaxies. The effects of CRs are yet to be fully understood, and their complex multi-channel feedback mechanisms operating across the hierarchy of galaxy structures pose a significant technical challenge. This review examines the role of CRs in galaxies, from the scale of molecular clouds to the circumgalactic medium. An overview of their interaction processes, their implications for galaxy evolution, and their observable signatures is provided and their capability to modify the thermal and hydrodynamic configuration of galactic ecosystems is discussed. We present recent advancements in our understanding of CR processes and interpretation of their signatures, and highlight where technical challenges and unresolved questions persist. We discuss how these may be addressed with upcoming opportunities.

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Section: Pop III X-ray Binariesmentioning

confidence: 99%

Cosmic Ray Processes in Galactic Ecosystems

Owen

Inoue

et al. 2023

Galaxies

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“…Material from the star accretes onto a compact object, resulting in the production of a pair of relativistic ejections moving in opposite directions largely perpendicular to the binary orbital plane. These ejecta form jets, which emit anywhere between radio waves and very-high-energy (VHE) γ rays and neutrinos [2][3][4][5][6][7][8][9][10][11][12][13]. As shown in [2], the apparent superluminal motion in MQs suggests that jets comprise bulk hadron flows.…”

Section: Introductionmentioning

confidence: 99%

Simulated Radio and Neutrino Imaging of a Microquasar

Smponias

2023

Galaxies

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Microquasar stellar systems emit electromagnetic radiation and high-energy particles. Thanks to their location within our own galaxy, they can be observed in high detail. Still, many of their inner workings remain elusive; hence, simulations, as the link between observations and theory, are highly useful. In this paper, both high-energy particle and synchrotron radio emissions from simulated microquasar jets are calculated using special relativistic imaging. A finite ray speed imaging algorithm is employed on hydrodynamic simulation data, producing synthetic images seen from a stationary observer. A hydrodynamical model is integrated in the above emission models. Synthetic spectra and maps are then produced that can be compared to observations from detector arrays. As an application, the model synthetically observes microquasars during an episodic ejection at two different spatio-temporal scales: one on the neutrino emission region scale and the other on the synchrotron radio emission scale. The results are compared to the sensitivity of existing detectors.

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Quiescent black hole X-ray binaries as multi-messenger sources

Kantzas,

Calore

2024

A&A

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The origin of Galactic cosmic rays (CRs) is unknown even though they have traditionally been connected to supernovae based on energetic arguments. In the past decades, Galactic black holes in X-ray binaries (BHXBs) have been proposed as candidate sources of CRs, which revises the CR paradigm. launch two relativistic jets during their outbursts, but recent observations suggested that these jets may be launched even during quiescence. is a well-studied object that shows indications of jet emission. We study the simultaneous radio-to-X-ray spectrum of this source that was detected while the source was in quiescence to better constrain the jet dynamics. Because most spend their lifetimes in quiescence (q we used the jet dynamics of to study a population of $10^5$ such sources distributed throughout the Galactic disc, and a further $10^4$ sources that are located in the boxy bulge around the Galactic centre. While the contribution to the CR spectrum is suppressed, we find that the cumulative intrinsic emission of q from both the boxy bulge and from the Galactic disc adds to the diffuse emission that various facilities detected from radio to TeV We examined the contribution of q to the Galactic diffuse emission and investigated the possibility of SKA and CTAO to detect individual sources in the future. Finally, we compare the predicted neutrino flux to the recently presented Galactic diffuse neutrino emission by IceCube.

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Neutrino production in Population III microquasars

Cited by 8 publications

References 70 publications

Cosmic Ray Processes in Galactic Ecosystems

Cosmic Ray Processes in Galactic Ecosystems

Simulated Radio and Neutrino Imaging of a Microquasar

Quiescent black hole X-ray binaries as multi-messenger sources

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