Four planets locked in a perfect rhythm around a nearby star are destined to be pinballed around their solar system when their sun eventually dies, according to a study led by the University of Warwick that peers into its future.
Astronomers have spotted a giant 'blinking' star towards the centre of the Milky Way, more than 25,000 light years away.
In the decade following their discovery in 2007, only 140 FRBs had been seen. Now, thanks to the launch of a large stationary telescope in the interior of British Columbia in 2018, the number of new FRBs detected has almost quadrupled -- for a total of 535. A McGill-led inter-university collaboration, has now put together the first CHIME/FRB catalogue.
A University of Oklahoma doctoral student, graduate and undergraduate research assistants, and an associate professor in the Homer L. Dodge Department of Physics and Astronomy in the University of Oklahoma College of Arts and Sciences are lead authors on a paper describing a 'changing-look' blazar -- a powerful active galactic nucleus powered by supermassive blackhole at the center of a galaxy. The paper is published in The Astrophysical Journal.
At the heart of almost every sufficiently massive galaxy there is a black hole whose gravitational field, although very intense, affects only a small region around the center of the galaxy. Even though these objects are thousands of millions of times smaller than their host galaxies our current view is that the universe can be understood only if the evolution of galaxies is regulated by the activity of these black holes, because without them the observed properties of the galaxies cannot be explained.
The large radio telescope CHIME has detected more than 500 mysterious fast radio bursts in its first year of operation, MIT researchers report. The observations quadruple the number of known radio bursts and reveal two types of FRBs: one-offs and repeaters.
Researchers from the University of Arizona have detected organic molecules in planetary nebulae, the aftermaths of dying stars, and in the far reaches of the Milky Way, which have been deemed too cold and too removed from the galactic center to support such chemistries. They present their findings at the 238th Meeting of the American Astronomical Society, or AAS, held virtually from June 7-9.
Astronomers have taken a big step forward in understanding the dark and violent places where stars are born. Over the past five years, an international team of researchers has conducted the first systematic survey of 'stellar nurseries' across our part of the universe, charting the more than 100,000 of these nurseries across more than 90 nearby galaxies and providing new insights into the origins of stars.
A team of astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) has completed the first census of molecular clouds in the nearby Universe. The study produced the first images of nearby galaxies with the same sharpness and quality as optical imaging and revealed that stellar nurseries do not all look and act the same. In fact, they're as diverse as the people, homes, neighborhoods, and regions that make up our own world.
One cohesive, enormous stream of stars extends at least 1,600 light-years -- 500 parsecs -- from tip to tip. A team of astrophysicists led by Princeton University's Luke Bouma used TESS data to show that stars in the core of NGC 2516 (the Southern Beehive) are rotating at the same rate as stars hundreds of light-years away, confirming that they were born in the same stellar nursery.