First definitive X-ray shock breakout from a Type Ic-BL supernova, with radio constraints and a rate calculation implying most such supernovae produce fainter signals than observed here.
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7 Pith papers cite this work. Polarity classification is still indexing.
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2026 7representative citing papers
Higher-Mach-number self-similar shock solutions in failed supernovae are unstable and strengthen asymptotically above a critical neutrino mass-loss threshold, explaining greater ejection in red supergiants versus compact progenitors.
Off-axis cocoon emission from long GRB jets produces fast X-ray transients with luminosities of 10^47-48 erg/s, durations of 10-100 s, and soft quasi-thermal spectra peaking near 0.8 keV.
EP251023a is a new extragalactic fast X-ray transient whose optical light curve is interpreted as a rare magnetar-powered internal plateau with derived upper limits on spin period and magnetic field.
EP250304a/SN 2025fhm is presented as a member of an emerging subclass of shocked cocoon-dominated low-luminosity GRB-SNe based on spectral, photometric, and light-curve modeling comparisons to prior events.
Optical imaging and BAGPIPES SED fitting of eight FXTs yields candidate hosts consistent with WD-IMBH TDEs or BNS mergers for most events, with one reclassified as a Galactic flare and evidence for diverse origins.
The paper identifies supernova emission matching a scaled SN 1998bw template in the late-time light curve of EP250302a at z=1.131, with early data constraining the jet Lorentz factor above 25.
citing papers explorer
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A Multi-Wavelength View of the First Type Ic-BL Supernova with an Einstein Probe X-ray Shock Breakout
First definitive X-ray shock breakout from a Type Ic-BL supernova, with radio constraints and a rate calculation implying most such supernovae produce fainter signals than observed here.
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On the Origin of Mass Ejection in Failed Supernovae
Higher-Mach-number self-similar shock solutions in failed supernovae are unstable and strengthen asymptotically above a critical neutrino mass-loss threshold, explaining greater ejection in red supergiants versus compact progenitors.
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Fast X-ray Transients produced by Off-axis Jet-Cocoons from Long Gamma-Ray Bursts
Off-axis cocoon emission from long GRB jets produces fast X-ray transients with luminosities of 10^47-48 erg/s, durations of 10-100 s, and soft quasi-thermal spectra peaking near 0.8 keV.
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EP251023a: A fast X-ray transient featuring a magnetar-powered optical internal plateau followed by a steep decay
EP251023a is a new extragalactic fast X-ray transient whose optical light curve is interpreted as a rare magnetar-powered internal plateau with derived upper limits on spin period and magnetic field.
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Probing a new subclass of llGRB-SN transients: Insights from EP250304a and its associated supernova
EP250304a/SN 2025fhm is presented as a member of an emerging subclass of shocked cocoon-dominated low-luminosity GRB-SNe based on spectral, photometric, and light-curve modeling comparisons to prior events.
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Optical observations of candidate host galaxies of eight fast X-ray transients
Optical imaging and BAGPIPES SED fitting of eight FXTs yields candidate hosts consistent with WD-IMBH TDEs or BNS mergers for most events, with one reclassified as a Galactic flare and evidence for diverse origins.
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Discovery of a Supernova Following the Einstein Probe Transient EP250302a at z = 1.131
The paper identifies supernova emission matching a scaled SN 1998bw template in the late-time light curve of EP250302a at z=1.131, with early data constraining the jet Lorentz factor above 25.