Astronomers at Caltech have used a machine learning algorithm to classify 1,000 supernovae completely autonomously. The algorithm was applied to data captured by the Zwicky Transient Facility, or ZTF, a sky survey instrument ...
Astronomy
Nov 23, 2022
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730
An international research team led by the University of Minnesota Twin Cities has measured the size of a star dating back 2 billion years after the Big Bang, or more than 11 billion years ago. Detailed images show the exploding ...
Astronomy
Nov 9, 2022
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781
When a star explodes (a supernova), it sends its intense burst of light out in all directions. On rare occasions, in the months and years that follow, rings of light or "light echoes" spread out from the original supernova ...
Astronomy
Oct 28, 2022
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574
Life and supernovae don't mix.
Astronomy
Oct 27, 2022
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69
In 1980's popular book "Cosmos," Carl Sagan wrote of what makes us: "All the elements of the Earth except hydrogen and some helium have been cooked by a kind of stellar alchemy billions of years ago in stars, some of which ...
Astronomy
Oct 20, 2022
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59
Astrophysicists have performed a powerful new analysis that places the most precise limits yet on the composition and evolution of the universe. With this analysis, dubbed Pantheon+, cosmologists find themselves at a crossroads.
Astronomy
Oct 19, 2022
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979
Using NASA's Chandra X-ray observatory, astronomers have carried out an X-ray proper motion study of a supernova remnant known as SNR 0509-67.5. Results of the research, published October 5 on arXiv.org, yield essential information ...
By simulating the feedback of the white dwarf (WD) to the periodic mass transfer driven by the X-ray irradiation on its companion, researchers led by Ph.D. candidate Zhao Weitao and Prof. Meng Xiangcun from the Yunnan Observatories ...
Astronomy
Oct 14, 2022
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8
The very first stars likely formed when the universe was only 100 million years old, less than one percent its current age. These first stars—known as Population III—were so titanically massive that when they ended their ...
Astronomy
Sep 28, 2022
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2311
In a recent study submitted to High Energy Astrophysical Phenomena, a team of researchers from Japan discuss strategies to observe, and possibly predict precursor signatures for an explosion from Local Type II and Galactic ...
Astronomy
Sep 19, 2022
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