Articles tagged with Core Collapse Supernovae
Astronomers have confirmed the connection between magnetars and superluminous supernovae, finding definitive evidence for a magnetar forming in the core collapse of a recent supernova. The discovery corroborates a theory proposed 16 years ago and establishes a new phenomenon in exploding stars.
Scientists have discovered a rare superkilonova event, which may have produced gravitational waves and light, as detected by LIGO and Virgo. The candidate kilonova AT2025ulz showed signs of a supernova before fading and brightening again in red wavelengths.
A new study suggests that violent supernovae caused at least two mass extinction events in Earth's history, including the late Devonian and Ordovician extinctions. Researchers believe a nearby supernova could have stripped the planet's atmosphere of ozone, sparking acid rain and exposing life to harmful ultraviolet radiation.
Researchers have observed a rare metal-poor supernova, providing valuable information about the early universe. The study revealed that this supernova was distinct from others in nearby galaxies, with unique properties such as a steady brightness period and rapid spin.
A nearby supernova explosion could produce gamma rays that pinpoint the mass of a key dark matter candidate, the axion. The Fermi Gamma-ray Space Telescope would need to be in position to detect these gamma rays within 10 seconds of the supernova's core collapse.
The James Webb Space Telescope has revealed intricate patterns of shells, holes, and filaments in the supernova remnant Cassiopeia A, providing insights into molecular formation and destruction processes. CO molecules are critical indicators of cooling and chemical processes that lead to dust condensation.
Astronomers uncover evidence of a massive star's quiet demise into a black hole without a supernova explosion. The VFTS 243 system shows minimal signs of an explosion, offering insight into stellar evolution and collapse theories.
Researchers use James Webb Space Telescope to observe Supernova 1987A and detect ionised argon and sulphur atoms, providing conclusive evidence for a neutron star's presence. The discovery sheds light on the formation of heavy elements and the nature of compact objects in supernovae.
Astronomers have used observations from the Hobby-Eberly Telescope to better understand how massive stars live and die. The study of supernova 2014C revealed a unique process where the hydrogen envelopes of two stars merged, forming a common-envelope configuration that shed light on the stellar explosion.
Astronomers discovered a stellar collision that triggered a supernova explosion in a companion star. The collision was detected using the VLA and VLASS survey, revealing a centuries-long death dance between two massive stars.
A new model of supernovae represented as dynamical systems subject to a loss of stability sheds light on the phenomenon. This approach could be used to predict natural catastrophes before they happen.
Researchers found evidence that supernovae explosions can leave behind iron-rich gas clouds that feed gamma-ray bursts. The 'supranova' model suggests that the gamma-ray burst arises from the delayed collapse of a neutron star formed by the supernova explosion.
Scientists used NASA's Chandra X-ray Observatory to capture a rare glimpse of X-radiation from the early phases of a supernova. The observations revealed that the supernova shed a relatively small amount of matter before it exploded, compared to other supernovae.