Ground-based astronomical observations face inherent challenges from weather changes, target visibility window constraints, and observational requirements. Enhancing the efficiency and effectiveness of telescope operations has long been a key…
Category: 2. Space
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Deep Reinforcement Learning for Efficient Scheduling of Ground-based Astronomical Observations
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Semiempirical versus Theoretical Stellar Population Models: A Comparison with Star Clusters
Stellar population synthesis (SPS) models are a key tool for deriving the age, metallicity, radial velocity, and reddening of star clusters from their integrated spectra. Using a sample of 129 star clusters with high-quality spectra, we analyze…
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The Second and Third Data Releases from the UKIRT Hemisphere Survey
This paper describes the second and third data releases (DR2 and DR3, respectively) from the ongoing United Kingdom Infrared Telescope Hemisphere Survey (UHS). DR2 is primarily comprised of the K-band portion of the UHS survey, and was released…
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ABYSS. III. Observing Accretion Activity in Young Stars Through Empirical Veiling Measurements
Stellar accretion plays an important role in the early stages of stellar evolution, particularly in Classical T Tauri Stars (CTTSs). Accretion of a CTTS can be related to different physical parameters such as effective temperature (Teff), age,…
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These mysterious stars could glow forever using dark matter
A new kind of cosmic object could help solve one of the universe’s greatest mysteries: dark matter.
Particle Astrophysicists have proposed the existence of a strange new type of star-like object, called a ‘dark dwarf’, which may be quietly…
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2. 35-billion-year-old Moon rock found in Africa rewrites lunar history
A 2.35-billion-year-old meteorite with a unique chemical signature, found in Africa in 2023, plugs a major gap in our understanding of the Moon’s volcanic history.
Findings from analyses of the Northwest Africa 16286 meteorite, presented at the…
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