Facebook is harnessing the power of artificial intelligence to help doctors predict whether they will need more resources, such as extra oxygen to care for COVID-19 patients in hospitals. CNET reports: The social network said Friday it developed two AI models, one based on a single chest X-ray, and another from a series X-rays, that could help forecast if a patient…
Tag: x-ray
X-rays surrounding ‘Magnificent 7’ may be traces of sought-after particle
A new study, led by a theoretical physicist at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), suggests that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron stars. Source: https://phys.org/news/2021-01-x-rays-magnificent-sought-after-particle.html…
Galaxies hit single, doubles, and triple (growing black holes)
When three galaxies collide, what happens to the huge black holes at the centers of each? A new study using NASA’s Chandra X-ray Observatory and several other telescopes reveals new information about how many black holes are furiously growing after these galactic smash ups. Source: https://phys.org/news/2021-01-galaxies-triple-black-holes.html…
Megalodon shark’s enormous babies ate their siblings in the womb
Megalodons – the extinct giant sharks that lived in most of Earth’s oceans about 3 million years ago – gave birth to babies that were larger than adult humans, scientists say. Source: https://earthsky.org/earth/megalodon-extinct-giant-shark-enormous-babies…
Image: Cosmic neon lights
This image shows a new type of star that has never been seen before in X-ray light. This strange star formed after two white dwarfs—remnants of stars like our sun—collided and merged. But instead of destroying each other in the event, the white dwarfs formed a new object that shines bright in X-ray light. Source: https://phys.org/news/2021-01-image-cosmic-neon.html…
Supergiant eclipsing binary IGR J18027–2016 investigated in detail
Using data from ESA’s XMM-Newton and NASA’s Swift spacecraft, astronomers have conducted a detailed temporal and spectral study of an eclipsing supergiant X-ray binary known as IGR J18027–2016. Results of this research provide important insights into the properties of this system. The study was published December 28 on arXiv.org. Source: https://phys.org/news/2021-01-supergiant-eclipsing-binary-igr-j180272016.html…
A Giant Black Hole Keeps Evading Detecting and Scientists Can’t Explain It
“An enormous black hole keeps slipping through astronomers’ nets…” reports Space.com: The big galaxy at the core of the cluster Abell 2261, which lies about 2.7 billion light-years from Earth, should have an even larger central black hole — a light-gobbling monster that weighs as much as 3 billion to 100 billion suns, astronomers estimate from the galaxy’s mass. But the…
Black hole X-ray binary GRS 1915+105 has a variable magnetic disc wind, study suggests
Using NASA’s Chandra spacecraft, astronomers have performed high-resolution X-ray spectroscopic observations of a transient black hole X-ray binary known as GRS 1915+105. They report that the source exhibits a variable magnetic accretion disc wind. The study was detailed in a paper published December 16 on the arXiv pre-print repository. Source: https://phys.org/news/2020-12-black-hole-x-ray-binary-grs.html…
A blazar in the early Universe
The supersharp radio ‘vision’ of the National Science Foundation’s Very Long Baseline Array (VLBA) has revealed previously unseen details in a jet of material ejected at three-quarters the speed of light from the core of a galaxy some 12.8 billion light-years from Earth. The galaxy, dubbed PSO J0309+27, is a blazar, with its jet pointed toward Earth, and is the brightest…
Study sheds more light on the complex morphology of supernova remnant IC 443
Italian astronomers have developed a 3-D model for the supernova remnant (SNR) IC 443 in order to investigate the morphology of this source. The model allowed the researchers to gain more insights into the complex morphology of SNR IC 443 and provided crucial information about X-ray emission from this object. The study was detailed in a paper published December 15 on…