Selected topics in the evolution of low-mass stars
Low-mass stars play a key role in many different areas of astrophysics. In this article, I provide a brief overview of the evolution of low-mass stars, and discuss some of the uncertainties and problems currently affecting low-mass stellar models ...
Catelan M.
doaj +1 more source
Extending the Red Giant Branch versus Metallicity Calibration toward Metal-poor Systems: Near-Infrared Photometry of the Galactic Globular Clusters M56 and M15 [PDF]
V. D. Ivanov+3 more
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Discrete Chiral Ballistic Polariton Laser
Planar microcavities in the strong light–matter coupling regime exhibit exciton‐polariton modes with a strong chiral response toward circularly polarized light. This feature is exploited alongside inherent spin‐orbit coupling of cavity light to generate giant discrete optical vortices in polygonal arrays of exciton‐polariton condensates.
Zuzanna Werner+5 more
wiley +1 more source
On the Age Calibration of Open Clusters Using Red Clump Stars
In this study, we extend the dust-independent Hatzidimitriou relation between cluster age and d _B _− _R color difference between the red giant branch (RGB) and red clump to younger cluster ages.
Abigail R. Chriss, Guy Worthey
doaj +1 more source
Clusters are excellent test benches for verification and improvement of stellar evolution theory. The recent detection of solar-like oscillations in G-K giants in the open cluster NGC6819 with Kepler provides us with independent constraints on the masses
Lagarde, N+4 more
doaj +1 more source
Uncovering Branch specialization in InceptionV1 using k sparse autoencoders [PDF]
Sparse Autoencoders (SAEs) have shown to find interpretable features in neural networks from polysemantic neurons caused by superposition. Previous work has shown SAEs are an effective tool to extract interpretable features from the early layers of InceptionV1.
arxiv
Narrow Gauge and Analytical Branching Strategies for Mixed Integer Programming [PDF]
State-of-the-art branch and bound algorithms for mixed integer programming make use of special methods for making branching decisions. Strategies that have gained prominence include modern variants of so-called strong branching (Applegate, et al.,1995) and reliability branching (Achterberg, Koch and Martin, 2005; Hendel, 2015), which select variables ...
arxiv
On [TSUP]7[/TSUP]L[CLC]i[/CLC] Enrichment by Low-Mass Metal-Poor Red Giant Branch Stars [PDF]
R. de la Reza+3 more
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Mass spectrometry of dendrimers
Abstract Mass spectrometry (MS) has become an essential technique to characterize dendrimers as it proved efficient at tackling analytical challenges raised by their peculiar onion‐like structure. Owing to their chemical diversity, this review covers benefits of MS methods as a function of dendrimer classes, discussing advantages and limitations of ...
McKenna J. Redding+2 more
wiley +1 more source
Hubble Space TelescopeObservations of the Large Magellanic Cloud Field around SN 1987A: Distance Determination with Red Clump and Tip of the Red Giant Branch Stars [PDF]
M. Romaniello+3 more
openalex +1 more source