Transient and explosive astronomical phenomena constitute a research area focused on short-lived, high-energy events in the universe, such as supernovae, gamma-ray bursts, tidal disruption events, kilonovae, and fast radio bursts. This field investigates the underlying physical mechanisms driving rapid energy release, including relativistic jets, shock breakout, nucleosynthesis, compact object mergers, and accretion-induced instabilities. Research integrates multiwavelength and multimessenger observations (electromagnetic spectra, gravitational waves, neutrinos) with numerical simulations and theoretical modeling to constrain progenitor systems, energy budgets, radiative transfer processes, and environmental impact, including feedback on galactic evolution and the production of heavy elements.
Astrophysicists have unearthed a surprising diversity in the ways in which white dwarf stars explode in deep space after assessing almost 4,000 such events captured in detail by a next-gen astronomical sky survey. Their findings ...
Astronomy
Feb 14, 2025
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An international team of astronomers has investigated a newly detected Type II supernova designated SN 2024jlf. The new study, detailed in a paper published Jan. 30 on the arXiv pre-print server, yields important information ...
An international research team led by the Yunnan Observatories of the Chinese Academy of Sciences has made significant advancements in the observational study of the metamorphic supernova SN 2014C. Their work provides crucial ...
Astronomy
Feb 10, 2025
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When the European Space Agency's XMM-Newton pointed its telescope at two unidentified sources of light in the outskirts of the Large Magellanic Cloud, scientists were able to confirm what seemed an unlikely discovery. They ...
Astronomy
Feb 6, 2025
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The study of 'starquakes' (like earthquakes, but in stars) promises to give us important new insights into the properties of neutron stars (the collapsed remnants of massive stars), according to new research led by the University ...
General Physics
Feb 5, 2025
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Astronomers from Turkey and Japan have performed optical observations of a recently discovered nearby supernova remnant known as G206.7+5.9. Results of their observations, published Jan. 28 on the arXiv pre-print server, ...
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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Researchers at the University of Oxford have pioneered a new approach to simulate turbulent systems, based on probabilities. The findings appear in the journal Science Advances.
Soft Matter
Jan 29, 2025
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Fast radio bursts (FRBs) are one of the greater mysteries facing astronomers today, rivaled only by gravitational waves (GWs) and gamma-ray bursts (GRBs). Originally discovered in 2007 by American astronomer Duncan Lorimer ...
Astronomy
Jan 27, 2025
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Astronomer Calvin Leung was excited last summer to crunch data from a newly commissioned radio telescope to precisely pinpoint the origin of repeated bursts of intense radio waves—so-called fast radio bursts (FRBs)—emanating ...
Astronomy
Jan 25, 2025
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