Gamma-ray bursters as a research area focuses on the astrophysical study of gamma-ray bursts (GRBs), extremely energetic transient events observed in gamma-ray wavelengths. This field investigates the progenitors (such as massive stellar collapse and compact object mergers), relativistic jet formation, radiation mechanisms (synchrotron, inverse Compton, photospheric emission), and afterglow evolution across the electromagnetic spectrum. Research integrates high-energy astrophysics, relativistic hydrodynamics, nuclear physics, and cosmology, using space-based gamma-ray observatories, rapid follow-up at other wavelengths, and numerical simulations to constrain GRB energetics, beaming, host environments, and their role as probes of star formation, the interstellar/intergalactic medium, and the high-redshift universe.
The international CTAO LST Collaboration has released remarkable findings from observations of GRB 221009A—the brightest gamma-ray burst (GRB) ever recorded.
Astronomy
Jul 23, 2025
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Lightning is a phenomenon that has fascinated humanity since time immemorial, providing a stark example of the power and unpredictability of the natural world. Although the study of lightning can be challenging, scientists ...
Earth Sciences
May 21, 2025
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Gamma-ray bursts (GRBs) are the most energetic events ever observed in the universe. These powerful outbursts can shine a quintillion (1018) times brighter than the sun. Since they were first detected in 1967 by the Vela ...
Astronomy
Apr 17, 2025
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The U.S. Naval Research Laboratory (NRL), in partnership with NASA's Marshall Space Flight Center (MSFC), has developed StarBurst, a small satellite (SmallSat) instrument for NASA's StarBurst Multimessenger Pioneer mission, ...
Astronomy
Mar 13, 2025
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Today, the European Space Agency's gamma-ray telescope ends its observations. During its 22 years in space, Integral has reshaped our view of the most dramatic events in the universe. The high-energy observatory played a ...
Astronomy
Feb 28, 2025
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Highly energetic explosions in the sky are commonly attributed to gamma-ray bursts. We now understand that these bursts originate from either the merger of two neutron stars or the collapse of a massive star.
Astronomy
Jan 30, 2025
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The long-awaited detection of gravitational waves has opened up a whole new world of astronomy. One of the key efforts is now to tie signals across multiple domains—for example, a gravitational wave and the associated electromagnetic ...
Astronomy
Jan 8, 2025
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Indian astronomers have performed a multiwavelength study of a gamma-ray emitting compact symmetric object known as DA 362. Results of the study, presented in a research paper published December 17 on the pre-print server ...
Among its other notable achievements and puzzles, the James Webb Space Telescope (JWST) has found a larger number of bright galaxies in the distant universe than was expected. While scientists are still debating the excess, ...
EIRSAT-1, the student-built satellite from University College Dublin (UCD) that was launched into space last December, detected two separate gamma-ray bursts on 21 August. One of the gamma-ray bursts has been confirmed by ...
Astronomy
Oct 16, 2024
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