Our Sun formed with hundreds to thousands of sibling stars. These stars have drifted apart over billions of years. Scientists use stellar spectra and orbital data to identify potential siblings. The ...
Not often do astronomers come across a tear in the tissue of a galaxy a scab so big it might span one-fifth of the Milky Way.
New data from the James Webb Space Telescope may solve a riddle from the universe’s beginnings. A compact, distant object ...
Stark broadening, the widening of spectral lines due to the perturbing influence of electric fields from electron collisions, plays a pivotal role in the analysis of stellar atmospheres. This ...
At just 25, Cecilia Payne-Gaposchkin applied quantum physics to a treasure trove of astronomical observations to show that stars are mostly hydrogen and helium.
Extracting accurate atmospheric parameters and elemental abundances from stellar spectra is crucial for studying the Galactic evolution. In this paper, a deep neural network architecture named StarNet ...
Recent research has provided astronomers with unprecedented measurements of some of the most massive stars in the Milky Way, shedding light on their structure, evolution, and eventual fate. The study, ...
On July 21, Sky and Telescope contributing editor Tom Field will show how to capture stellar spectra using telescopes as small as 6-inch or with dslr cameras. The program will be accomplished using ...
Publications of the Astronomical Society of the Pacific, Vol. 133, No. 1020 (2021 February), pp. 1-12 (12 pages) Accurate and efficient determination of stellar atmospheric parameters (Teff, logg, [Fe ...
At the dawn of the universe, there was only hydrogen and helium. These elements made up all the galaxies and all the stars. But stars fuse hydrogen and helium into heavier elements, and large stars ...