Results 1 to 10 of about 69,893 (289)
Chemical element transport in stellar evolution models [PDF]
Royal Society Open Science, 2017 Stellar evolution computations provide the foundation of several methods applied to study the evolutionary properties of stars and stellar populations, both Galactic and extragalactic.
Maurizio Salaris, Santi Cassisi
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Stellar Evolutionary Models for Magellanic Clouds [PDF]
Astronomy & Astrophysics, 2003 We supplement current evolutionary computations concerning Magellanic Cloud stars by exploring the evolutionary behavior of canonical stellar models (i.e.,with inefficient core overshooting) with metallicities suitable for stars in the Clouds.
Anthony-Twarog +53 more
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Stellar Evolutionary Models: challenges from observations of stellar systems [PDF]
Proceedings of the International Astronomical Union, 2007 We briefly review some constraints (Owing to the limited number of pages of present review, only a sub-sample of the topics discussed during the talk are briefly summarized. For the interested readers we are pleased to send them upon request the complete
Cassisi, S.
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Probing high-mass stellar evolutionary models with binary stars [PDF]
Proceedings of the International Astronomical Union, 2014 Mass discrepancy is one of the problems that is pending a solution in (massive) binary star research field. The problem is often solved by introducing an additional near core mixing into evolutionary models, which brings theoretical masses of individual ...
Tkachenko, A.
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Predicting Photospheric Ultraviolet Emission from Stellar Evolutionary Models
The Astrophysical JournalStellar ultraviolet (UV) emission serves as a crucial indicator for estimating magnetic activity and evaluating the habitability of exoplanets orbiting stars.
Song Wang +3 more
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Flow-based Generative Emulation of Grids of Stellar Evolutionary Models
The Astrophysical JournalWe present a flow-based generative approach to emulate grids of stellar evolutionary models. By interpreting the input parameters and output properties of these models as multidimensional probability distributions, we train conditional normalizing flows ...
Marc Hon, Yaguang Li, Joel Ong
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The Astrophysical JournalWe present dynamical masses for 23 pre-main-sequence (PMS) K- and M-type stars in the Upper Scorpius star-forming region. These masses were derived from the Keplerian rotation of CO disk gas using the Markov Chain Monte Carlo radiative-transfer package ...
A. P. M. Towner +4 more
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Dynamical Masses and Stellar Evolutionary Model Predictions of M Stars [PDF]
The Astrophysical Journal, 2021 Abstract In this era of Gaia and ALMA, dynamical stellar mass measurements, derived from spatially and spectrally resolved observations of the Keplerian rotation of circumstellar disks, provide benchmarks that are independent of observations of stellar characteristics and their uncertainties. These benchmarks can then be used to validate
Jamila Pegues +11 more
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Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT We present the HR-pyPopStar model, which provides a complete set (in ages) of high-resolution (HR) spectral energy distributions of Single Stellar Populations. The model uses the most recent high-wavelength-resolution theoretical atmosphere libraries for main-sequence, post-AGB/planetary nebulae and Wolf–Rayet stars.
I Millán-Irigoyen +5 more
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The Astrophysical Journal, 2023 The Jao Gap, a 17% decrease in stellar density at M _G ∼ 10 identified in both Gaia Data Release 2 and Early Data Release 3, presents a new method to probe the interior structure of stars near the fully convective transition mass.
Thomas M. Boudreaux, Brian C. Chaboyer
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