University of Groningen astronomers have discovered relics of merger events in the Milky Way halo. Five small groups of stars appear to represent mergers with smaller galaxies, while a big 'blob' comprising hundreds of stars ...
Astronomy
Jun 13, 2018
1
272
A new study by researchers at the University of Colorado Boulder finds that violent crashes may be more effective at activating black holes than more peaceful mergers.
Astronomy
Jun 6, 2018
0
152
Gravitational waves may be produced in the heart of the galaxy, says a new study led by Ph.D. student Joseph Fernandez at Liverpool John Moores University. He sets out the work in a presentation on 3rd April at the European ...
Astronomy
Apr 3, 2018
217
480
The NASA/ESA Hubble Space Telescope caught sight of a soft, diffuse-looking galaxy that is probably the aftermath of a long-ago galactic collision. Two spiral galaxies, each perhaps much like the Milky Way, swirled together ...
Astronomy
Feb 26, 2018
0
84
CU Boulder researchers have discovered a mechanism that explains the persistence of asymmetrical stellar clusters surrounding supermassive black holes in some galaxies and suggests that during post-galactic merger periods, ...
Astronomy
Feb 1, 2018
2
244
Most galaxies lie in clusters containing from a few to thousands of objects. Our Milky Way, for example, belongs to a cluster of about fifty galaxies called the Local Group whose other large member is the Andromeda galaxy ...
Astronomy
Dec 27, 2017
3
279
A riot of colour and light dances through this peculiarly shaped galaxy, NGC 5256. Its smoke-like plumes are flung out in all directions and the bright core illuminates the chaotic regions of gas and dust swirling through ...
Astronomy
Dec 14, 2017
0
65
Astronomers won't have to wait much longer for their first glimpse of one of the biggest types of unions in the cosmos. New research published November 13 in Nature Astronomy predicts that gravitational waves generated by ...
Astronomy
Nov 13, 2017
163
5114
Since Edwin Hubble proposed his galaxy classification scheme in 1926, numerous studies have investigated the physical mechanisms responsible for the shapes of spiral and elliptical galaxies. Because the processes are complex, ...
Astronomy
Jun 26, 2017
2
334
Supermassive holes are generally stationary objects, sitting at the centers of most galaxies. However, using data from NASA's Chandra X-ray Observatory and other telescopes, astronomers recently hunted down what could be ...
Astronomy
May 11, 2017
3
369
