Red giants are dying stars, in advanced stages of stellar evolution, which have depleted the hydrogen in their cores. In a study published today in Nature Communications, a team of astronomers mainly from Instituto de Astrofísica ...
Astronomy
Dec 16, 2022
4
532
Two astrophysicists at the Harvard-Smithsonian Center for Astrophysics have suggested a way to observe what could be the second-closest supermassive black hole to Earth: a behemoth 3 million times the mass of the Sun, hosted ...
Astronomy
Nov 28, 2022
1
294
A gas giant exoplanet with the density of a marshmallow has been detected in orbit around a cool red dwarf star by a suite of instruments, including the NEID radial-velocity instrument on the WIYN 3.5-meter Telescope at Kitt ...
Astronomy
Oct 20, 2022
0
67
A quartet of researchers at IRAP, Université de Toulouse, has found a way to measure the interior magnetic field of red giant stars. In their paper published in the journal Nature, Gang Li, Sébastien Deheuvels, Jérôme ...
We now have new clues about a mysterious stage in the life of binary stars, thanks to research from The Australian National University (ANU) and Yunnan Observatory in China.
Astronomy
Jul 7, 2022
0
73
New chemistry "forensics" indicate that the stone named Hypatia from the Egyptian desert could be the first tangible evidence found on Earth of a supernova type Ia explosion. These rare supernovas are some of the most energetic ...
Astronomy
May 16, 2022
0
1132
Scientists studying V Hydrae (V Hya) have witnessed the star's mysterious death throes in unprecedented detail. Using the Atacama Large Millimeter/submillimeter Array (ALMA) and data from the Hubble Space Telescope (HST), ...
Astronomy
Mar 28, 2022
1
567
Based on LAMOST and Kepler data, a new study led by astronomers from National Astronomical Observatories of Chinese Academy of Sciences (NAOC) has revealed evolutionary features of lithium for evolved stars, which updates ...
Astronomy
Nov 24, 2021
0
166
Scientists have discovered one of the smallest black holes on record—and the closest one to Earth found to date.
Astronomy
Apr 21, 2021
25
14244
By using a sample of 118945 red giant branch (RGB) stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) and Gaia, Dr. Wu Yaqian from the National Astronomical Observatories of the Chinese Academy ...
Astronomy
Feb 22, 2021
0
20
