In a new study published in the The Astrophysical Journal, Dr. Li Zhenwei and his collaborators from Yunnan Observatories of the Chinese Academy of Sciences (CAS), and Dr. Zhang Yangyang from the Zhoukou Normal University, ...
Astronomy
Apr 17, 2024
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25
Using the Hubble Space Telescope (HST) and the Stratospheric Observatory for Infrared Astronomy (SOFIA), astronomers have performed a multiwavelength study of a symbiotic binary known as HM Sagittae. Results of the study, ...
The circumstellar envelopes (CSE) of asymptotic giant branch (AGB) stars contain a large number of molecules, which account for about one-third of all molecules discovered in interstellar space.
Astronomy
Oct 9, 2023
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52
Researchers from the University of Sheffield and Imperial College London have spotted a "retired" asymptotic giant branch (AGB) star passing through a young star-forming region, something which was previously thought not ...
Astronomy
Jul 24, 2023
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1414
Of the many different kinds of stars, asymptotic giant branch (AGB) stars, usually slightly larger and older than our own sun, are known producers of interstellar dust.
Astronomy
Apr 6, 2023
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17
Using data from NASA's Kepler spacecraft, astronomers from the Pedagogical University of Cracow, Poland, and elsewhere have detected 278 variable stars in the open cluster NGC 6791 and its surroundings. The finding was reported ...
The alpha-rich giant stars with theoretical young ages have been treated as an abnormal population, since they cannot be understood in the canonical scheme of the Galactic chemical evolution.
Astronomy
Jan 21, 2022
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144
Based on the data from the Hubble Space Telescope (HST), astronomers have conducted a detailed spectroscopic and photometric study of two Type II globular clusters (GCs), namely NGC 1261 and NGC 6934. Results of the research, ...
Using the United Kingdom Infrared Telescope (UKIRT) and NASA's Spitzer Space Telescope, astronomers have conducted photometric observations of a nearby star-forming galaxy known as NGC 6822. They have identified nearly 3,000 ...
Analyzing data from spectroscopic instruments, astronomers have reported fundamental properties of Barnard 29, an ultraviolet-bright star in globular cluster Messier 13. Results of the analysis, presented in a paper published ...
