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Research#Astrophysics🔬 ResearchAnalyzed: Jan 4, 2026 06:49

Observations of the Fermi bubbles and the Galactic center excess with the DArk Matter Particle Explorer

Published:Dec 29, 2025 13:34
1 min read
ArXiv

Analysis

This article reports on observations of the Fermi bubbles and the Galactic center excess using the DArk Matter Particle Explorer (DAMPE). The Fermi bubbles are large structures of gamma-ray emission extending above and below the Galactic plane, and the Galactic center excess is an unexplained excess of gamma-rays from the center of the Milky Way. DAMPE is a space-based particle detector designed to study dark matter and cosmic rays. The research likely aims to understand the origin of these gamma-ray signals, potentially linking them to dark matter annihilation or other astrophysical processes.
Reference

“The article is based on a publication on ArXiv, suggesting it's a pre-print or a research paper.”

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Astrophysics#Novae, Particle Acceleration, Multi-messenger Astronomy🔬 ResearchAnalyzed: Jan 3, 2026 20:09

Multi-Messenger Predictions for T CrB Nova Outburst

Published:Dec 26, 2025 19:00
2 min read
ArXiv

Analysis

This paper investigates the potential for detecting gamma-rays and neutrinos from the upcoming outburst of the recurrent nova T Coronae Borealis (T CrB). It builds upon the detection of TeV gamma-rays from RS Ophiuchi, another recurrent nova, and aims to test different particle acceleration mechanisms (hadronic vs. leptonic) by predicting the fluxes of gamma-rays and neutrinos. The study is significant because T CrB's proximity to Earth offers a better chance of detecting these elusive particles, potentially providing crucial insights into the physics of nova explosions and particle acceleration in astrophysical environments. The paper explores two acceleration mechanisms: external shock and magnetic reconnection, with the latter potentially leading to a unique temporal signature.
Reference

“The paper predicts that gamma-rays are detectable across all facilities for the external shock model, while the neutrino detection prospect is poor. In contrast, both IceCube and KM3NeT have significantly better prospects for detecting neutrinos in the magnetic reconnection scenario.”

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