News
Powerful winds driven by a supermassive black hole
The supermassive black holes in the centres of galaxies have a basic influence on their evolution. This happens during a phase in which the black hole is...
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NewsProton acceleration in thermonuclear nova explosions revealed by gamma raysClassical novae are cataclysmic binary star systems in which the matter of a companion star is accreted on a white dwarf. Accumulation of hydrogen in a layer...
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NewsRadial variations in the stellar initial mass function of early-type galaxies.The hypothesis of a universal initial mass function (IMF) - motivated by observations in nearby stellar systems - has been recently challenged by the discovery...
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NewsRapid Orbital Decay in the 12.75-minute Binary White Dwarf J0651+2844.We report the detection of orbital decay in the 12.75-minute, detached binary white dwarf (WD) SDSS J065133.338+284423.37 (hereafter J0651). Our photometric...
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NewsRapid quasi-periodic oscillations in a relativistic jetActive galactic nuclei (AGN) consist of a supermassive black hole fed by the circumnuclear material close to the galaxy center. Around 10% of the AGNs develop a...
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NewsRed nuggets at the center of nearby galaxiesThe “Lambda Cold Dark Matter” (CDM) cosmological model is the current theory credited for reproducing the physics responsible for the formation and evolution of...
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NewsRegulation of black-hole accretion by a disk wind during a violent outburst of V404 CygniV404 Cygni is a black hole within a binary system where a black hole of around 10 times the mass of the Sun is swallowing material from a very nearby star...
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NewsRelativistic jets blowing bubbles in the central region of the Teacup GalaxyWhen matter falls into supermassive black holes in the centres of galaxies, it unleashes enormous amounts of energy and is called active galactic nuclei (or AGN...
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NewsResolving an event-horizon-scale structure around the supermassive black hole of a lensed quasarThe one-way frontier around a black hole is the event horizon from which nothing can escape. Close to it, strong effects of gravity and exotic physics are...