A team of astronomers from Yale University have identified the first “changing look” quasar, a…
Browsing: Quasars
Quasars, or quasi-stellar objects, are extraordinarily bright astronomical objects located at the centers of distant galaxies, powered by supermassive black holes. As material falls into these black holes, it heats up to extreme temperatures, causing quasars to emit incredible amounts of energy, including visible light, radio waves, and X-rays. They are among the most luminous, powerful, and energetic objects in the universe, often outshining the entire galaxies in which they reside. Quasars were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, during the 1960s. Their discovery was significant because it provided a profound glimpse into the processes occurring in the early universe. The study of quasars and other active galactic nuclei (AGN) is crucial for understanding the formation and growth of galaxies, the behavior of matter under extreme gravity, and the history of the universe itself.
Using data from ESO’s Very Large Telescope, astronomers have discovered alignments between supermassive black hole…
New research helps solve a quasar mystery that astronomers have been puzzling over for 20…
Using 140,000 distant quasars, astronomers from the Sloan Digital Sky Survey have made the most…
Using the Keck I Telescope, a team of astronomers viewed part of the network of…
This newly released Hubble image shows quasar 3C 273, which resides in a giant…
Using data from the Sloan Digital Sky Survey, astronomers have discovered a new type of…
Astronomers use quasars in a technique known as Delta-Differential One-Way Ranging to help achieve precise…
Scientists view a rare multiple quasar imaging event caused by the effects of a cloud…
In a newly published study, physics students from the Niels Bohr Institute report the discovery…
Using data from the Southern African Large Telescope and NASA’s WISE, astrophysicists documented the immense…
Research presented at the 2013 RAS National Astronomy Meeting describes a new quasar microlensing technique…
By improving an algorithm that is important for studying quasars, astrophysicists determined the radio and…
A newly published study from astronomers at the University of Colorado Boulder suggests that distant…
By combining telescope observations with advanced modeling, astronomers have found a rare triple quasar, called…
At 4 billion light-years in length, the Large Quasar Group (LQG) is the largest known…
Scientists have discovered a quasar that is at least five times more powerful than any…
An international team of scientists is measuring the role of dark energy in the evolution…