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2 giorni fa · This is an artistic impression of record-breaking quasar J059-4351. It's the bright core of a distant galaxy that is powered by a supermassive black hole like the one studied in this new research ...
6 ore fa · May 24, 2024 | Black Hole, Quasars. Black holes are the darkest objects in the universe — they produce no light at all. Yet they power some of the brightest objects. Known as quasars, these beacons can outshine entire galaxies of hundreds of billions of stars. In fact, the brightest one seen so far emits more light every minute than the Sun ...
1 giorno fa · PKU Astronomers Reveal Over 1.5 Million Reliable Quasar Candidates from Gaia DR3. KIAA announces an advancement in cosmic exploration with the release of the CatNorth quasar candidate...
Quasars are large supermassive black hole s at the centre of a galaxy that is so active that it tends to outshine the stars in the galaxy. Quasars tend to have accretion discs of gas and dust; when material from the disc falls into the Quasar, it is ejected as electromagnetic radiation.
2 giorni fa · Tue, 21/05/2024 - 11:08. arXiv:2405.11381v1 Announce Type: new Abstract: We examine the effects of massive primordial black holes (PBHs) on cosmic structure formation, employing both a semi-analytical approach and cosmological simulations. Our simulations incorporate PBHs with a monochromatic mass distribution centered around $10^6 \ \rm M ...
1 giorno fa · My research interests mainly include quasars and active galactic nuclei (AGNs), supermassive black holes and their accretion physics. Recently we have discovered many new quasars at intemediate...
2 giorni fa · Chinese researchers have used an artificial intelligence system to find extremely weak absorption lines in the spectra of quasars. They were able to determine the presence of neutral carbon in very distant galaxies. It is a sign that even at the beginning of their history, galaxies experienced intense evolutionary processes.
