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Showing 1–6 of 6 results

Advanced filters: Author: A. Ridnaia Clear advanced filters

A fast X-ray transient from a weak relativistic jet associated with a type Ic-BL supernova

The Einstein Probe has discovered a fast X-ray transient, EP240414a, associated with a broad-lined type Ic supernova. Its unusually soft spectrum and weak jet add to the diversity of stellar deaths and suggest a previously unknown Wolf–Rayet star explosion mechanism.

H. Sun
W.-X. Li
H. Zou
Research26 Jun 2025
Nature Astronomy

Volume: 9, P: 1073-1085
Soft X-ray prompt emission from the high-redshift gamma-ray burst EP240315a

The death of massive stars has traditionally been discovered by explosive events in the gamma-ray band. Liu et al. show that the sensitive wide-field monitor on board Einstein Probe can reveal a weak soft-X-ray signal much earlier than gamma rays.

Y. Liu
H. Sun
X.-X. Zuo
Research23 Jan 2025
Nature Astronomy

Volume: 9, P: 564-576
A bright γ-ray flare interpreted as a giant magnetar flare in NGC 253

The γ-ray burst GRB 200415A is probably a giant flare emitted from a magnetar in the nearby starburst galaxy NGC 253.

D. Svinkin
D. Frederiks
R. Starr
Research13 Jan 2021
Nature

Volume: 589, P: 211-213
A peculiar hard X-ray counterpart of a Galactic fast radio burst

In April 2020, the Konus-Wind instrument registered two X-ray bursts temporally coincident with two radio bursts from the Galactic magnetar SGR 1935+2154. The unusual spectral hardness of the X-ray bursts may be an indicator of fast-radio-burst-like radio emission from magnetars.

A. Ridnaia
D. Svinkin
T. L. Cline
Research18 Feb 2021
Nature Astronomy

Volume: 5, P: 372-377
Author Correction: Discovery and confirmation of the shortest gamma-ray burst from a collapsar

Tomás Ahumada
Leo P. Singer
Azamat F. Valeev
Amendments and Corrections13 Sept 2021
Nature Astronomy

Volume: 5, P: 1179
Discovery and confirmation of the shortest gamma-ray burst from a collapsar

The spectral properties of a short gamma-ray burst indicate that, contrary to expectations, it arose from the collapse of a massive star rather than from a compact binary merger. This discovery also confirms that most collapsars do not produce ultra-relativistic jets.

Tomás Ahumada
Leo P. Singer
Azamat F. Valeev
Research26 Jul 2021
Nature Astronomy

Volume: 5, P: 917-927