Results 11 to 20 of about 189,331 (177)
A Red Giants’ Toy Story. II. Understanding the Red-giant Branch Bump [PDF]
The Astrophysical Journal, 2023 The Red-Giant Branch Bump (RGBB) is one of the most noteworthy features in the red-giant luminosity function of stellar clusters. It is caused by the passage of the hydrogen-burning shell through the composition discontinuity left at the point of the ...
Marcelo M. Miller Bertolami
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Theoretical Uncertainties in Red Giant Branch Evolution: The Red Giant Branch Bump [PDF]
The Astrophysical Journal, 2005 A Monte Carlo simulation exploring uncertainties in standard stellar evolution theory on the red giant branch of metal-poor globular clusters has been conducted.
Alongi M. +11 more
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Modeling APOKASC-3 Red Giants. I. The First Dredge-up and Red Giant Branch Bump
The Astrophysical JournalWe focus on two key diagnostics of stellar physics in red giant branch (RGB) stars: the first dredge-up (FDU) of nuclear processed material and the location of the RGB bump (RGBB).
Kaili Cao, Marc H. Pinsonneault
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Testing Tidal Theory Using Gaia Binaries: The Red Giant Branch
The Astrophysical JournalTidal interaction is a major ingredient in the theory of binary evolution. Here, we study tidal circularization in binaries with red giant primaries. We compute the tidal evolution for binaries as their primary stars evolve along the red giant branch ...
Janosz W. Dewberry, Yanqin Wu
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The Aarhus red giants challenge [PDF]
Astronomy & Astrophysics, 2020 Contact. The large quantity of high-quality asteroseismic data that have been obtained from space-based photometric missions and the accuracy of the resulting frequencies motivate a careful consideration of the accuracy of computed oscillation frequencies of stellar models, when applied as diagnostics of the model properties. Aims.
Christensen-Dalsgaard, Jørgen +40 more
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Characterisation of red-giant stars in the public Kepler data [PDF]
, 2011 The first public release of long-cadence stellar photometric data collected by the NASA Kepler mission has now been made available. In this paper we characterise the red-giant (G-K) stars in this large sample in terms of their solar-like oscillations. We
Chaplin, W. J. +9 more
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Red Giant Branch Stars: The Theoretical Framework [PDF]
Publications of the Astronomical Society of the Pacific, 2002 Theoretical predictions of Red Giant Branch stars' effective temperatures, colors, luminosities and surface chemical abundances are a necessary tool for the astrophysical interpretation of the visible--near infrared integrated light from unresolved stellar populations, the Color-Magnitude-Diagrams of resolved stellar clusters and galaxies, and ...
Salaris, M., Cassisi, S., Weiss, A.
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The Red Giant Branch luminosity function bump [PDF]
Astronomy & Astrophysics, 2003 11 pages, accepted for publication in A& ...
RIELLO M. +8 more
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Inferring Coupling Strengths of Mixed-mode Oscillations in Red Giant Stars Using Deep Learning
The Astrophysical Journal, 2023 Asteroseismology is a powerful tool that may be applied to shed light on stellar interiors and stellar evolution. Mixed modes, behaving like acoustic waves in the envelope and buoyancy modes in the core, are remarkable because they allow for probing the ...
Siddharth Dhanpal +5 more
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The Astrophysical Journal, 2023 This paper reports the estimated stellar parameters of 1153 Kepler red giant branch stars determined with asteroseismic modeling. We use radial-mode oscillation frequencies, gravity-mode period spacings, Gaia luminosities, and spectroscopic data to ...
Yingxiang Wang +4 more
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