Kilonova afterglow potentially spotted for first time
For the first time, Northwestern University-led astronomers may have detected an afterglow from a kilonova.
Astronomy
Feb 28, 2022
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2686
News tagged with x ray emission
Diamond needles emit intense bunches of electrons when illuminated by light
(Phys.org)—For the first time, researchers have demonstrated that shining a nanosecond pulsed laser at the base of a 100-µm-long diamond needle can significantly enhance electron emission from the tip of the needle. The ...
Black holes spinning faster than ever before
(PhysOrg.com) -- Two UK astronomers have found that the giant black holes in the centre of galaxies are on average spinning faster than at any time in the history of the Universe. Dr Alejo Martinez-Sansigre of the University ...
Astronomy
May 23, 2011
15
0
A new twist in the dark matter tale
An innovative interpretation of X-ray data from a cluster of galaxies could help scientists fulfill a quest they have been on for decades: determining the nature of dark matter.
Astronomy
Dec 19, 2017
19
879
Astronomers discover a new black hole in our galaxy
(Phys.org)—NASA's Swift satellite recently detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy. The outburst, produced by a rare X-ray nova, announced the presence of a previously ...
Astronomy
Oct 5, 2012
14
0
Mysterious X-ray signal intrigues astronomers
(Phys.org) —A mysterious X-ray signal has been found in a detailed study of galaxy clusters using NASA's Chandra X-ray Observatory and ESA's XMM-Newton. One intriguing possibility is that the X-rays are produced by the ...
Astronomy
Jun 24, 2014
18
0
New discovery complicates efforts to measure universe's expansion
A study led by Texas Tech University shows that supersoft X-ray emissions can come from accretion as well as nuclear fusion.
Astronomy
Dec 4, 2018
1
1598
Did rapid spin delay 2017 collapse of neutron stars into black hole?
When two neutron stars spiral into one another and merge to form a black hole—an event recorded in 2017 by gravitational wave detectors and telescopes worldwide—does it immediately become a black hole? Or does it take ...
Astronomy
Mar 5, 2022
6
222
Volcano-like rupture could have caused magnetar slowdown
On Oct. 5, 2020, the rapidly rotating corpse of a long-dead star about 30,000 light years from Earth changed speeds. In a cosmic instant, its spinning slowed. And a few days later, it abruptly started emitting radio waves.
Astronomy
Jan 27, 2023
27
496
Under construction: Distant galaxy churning out stars at remarkable rate
Astronomers have used NASA's Chandra X-ray Observatory and other telescopes to show that a recently-discovered galaxy is undergoing an extraordinary boom of stellar construction. The galaxy is 12.7 billion light years from ...
Astronomy
Dec 8, 2016
15
733
