At present, the formation of galaxies is difficult to understand without the presence of a ubiquitous, but mysterious component, termed dark matter. Astronomers have measure how much dark matter there is around galaxies, ...
Astronomy
Oct 13, 2020
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12620
A team of astronomers including Carnegie's Ting Li and Alexander Ji discovered a stellar stream composed of the remnants of an ancient globular cluster that was torn apart by the Milky Way's gravity 2 billion years ago, when ...
Astronomy
Jul 29, 2020
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728
It is a widely accepted theory today that when the first stars formed in our universe approximately 13 billion years ago, they quickly came together to form globular clusters. These clusters then coalesced to others to form ...
Astronomy
Jul 28, 2020
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252
Almost like snowflakes, the stars of the globular cluster NGC 6441 sparkle peacefully in the night sky, about 13,000 light-years from the Milky Way's galactic center. Like snowflakes, the exact number of stars in such a cluster ...
Astronomy
Jun 5, 2020
0
6
Researchers have designed a new camera that could allow hypertelescopes to image multiple stars at once. The enhanced telescope design holds the potential to obtain extremely high-resolution images of objects outside our ...
Optics & Photonics
Mar 18, 2020
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3295
Like taking apart a piece of technology, the Milky Way galaxy has been reverse engineered to find out how it was assembled.
Astronomy
Mar 3, 2020
4
190
The discovery of the star, known as S5-HVS1, was made by Sergey Koposov from Carnegie Mellon University as part of the Southern Stellar Stream Spectroscopic Survey (S5). Located in the constellation of Grus—the Crane—S5-HVS1 ...
Astronomy
Nov 12, 2019
5
426
Using the Multi Unit Spectroscopic Explorer (MUSE), an international team of astronomers has investigated Terzan 9—one of the most central globular clusters in the Milky Way galaxy. Results of the study, presented in a ...
Astronomers have performed a comprehensive study of stellar populations in the young globular cluster NGC 1866. The new study confirms that the cluster hosts multiple stellar populations, which could have implications for ...
By analyzing high-resolution spectra for 11 red giant branch (RGB) stars, astronomers have conducted a chemical investigation of the globular cluster NGC 6723. Results of the study, presented in a paper published June 24 ...
