Archivi tag: Optical Astronomy

Supernovae in the Local Universe: Celebrating 10,000 Days of Supernova 1987A

Supernovae are a core element of modern astrophysics, providing fundamental insights into stellar evolution, the interstellar medium, astroparticle physics, nucleosynthesis and cosmology. While astronomers now routinely detect enormous number of supernovae every year at increasingly large distances, wide-field surveys and all-sky monitoring are now providing an important new element to such studies: there are a growing number of new supernovae being discovered very close to home. Continua a leggere Supernovae in the Local Universe: Celebrating 10,000 Days of Supernova 1987A

Extreme-Astrophysics in an Ever-Changing Universe

Since ancient times, astronomers’ attention has been drawn to changes in the sky. Today we know that most phenomena observed in “time-domain” astronomy are related to extreme astrophysical events or processes. Whether it is the explosion of stars in supernovae or the observations of flare stars, pulsars, gamma-ray bursts, blazars or active galactic nuclei, time-domain astronomy stretches across the whole electromagnetic spectrum and beyond. With increasing technical capabilities, the 21st century will see corresponding new instruments being developed or coming online, revolutionising our view of the ever-changing Universe. Continua a leggere Extreme-Astrophysics in an Ever-Changing Universe