EP260321a is a thermal soft X-ray shock breakout from a ~300 R_⊙ CSM shell around a stripped-envelope progenitor, followed by SN Ic-BL 2026gzf.
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5 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
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2026 5representative citing papers
EP260321a/SN2026gzf is the first Type Ic-BL supernova with a likely X-ray shock breakout, and such bright breakouts may be rare.
In-flight calibration of the Einstein Probe WXT confirms 3-6 arcmin spatial resolution across most of the field of view, 1.3 arcmin positioning accuracy, and effective area within 10% of models in the 0.5-4 keV band, with minor low-energy degradation in a few modules.
EP260321a is identified as the faintest shock breakout X-ray transient associated with broad-lined Ic supernova SN 2026gzf, interpreted as originating from a mildly relativistic weak outflow choked inside the progenitor star.
New early multi-wavelength data on GRB 230328B shows afterglow with early bump and late achromatic rebrightening at ~4000 s, modeled via MCMC as forward shock plus late energy injection in a dusty S0 host with AV~0.8 and no supernova signature.
citing papers explorer
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X-rays breaking out of pre-explosion ejecta mark a supernova's first light
EP260321a is a thermal soft X-ray shock breakout from a ~300 R_⊙ CSM shell around a stripped-envelope progenitor, followed by SN Ic-BL 2026gzf.
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A Multi-Wavelength View of the First Type Ic-BL Supernova with an Einstein Probe X-ray Shock Breakout
EP260321a/SN2026gzf is the first Type Ic-BL supernova with a likely X-ray shock breakout, and such bright breakouts may be rare.
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In-flight calibration of the Wide-field X-ray Telescope on board the Einstein Probe
In-flight calibration of the Einstein Probe WXT confirms 3-6 arcmin spatial resolution across most of the field of view, 1.3 arcmin positioning accuracy, and effective area within 10% of models in the 0.5-4 keV band, with minor low-energy degradation in a few modules.
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EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-Lined Supernova
EP260321a is identified as the faintest shock breakout X-ray transient associated with broad-lined Ic supernova SN 2026gzf, interpreted as originating from a mildly relativistic weak outflow choked inside the progenitor star.
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Earliest simultaneous multi-color optical observations of GRB 230328B: from 41 seconds to the host-galaxy identification
New early multi-wavelength data on GRB 230328B shows afterglow with early bump and late achromatic rebrightening at ~4000 s, modeled via MCMC as forward shock plus late energy injection in a dusty S0 host with AV~0.8 and no supernova signature.