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Related papers: Updated Electron-Conduction Opacities: The Impact …

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We explore the impact of electron thermal conduction on the evolution of radiatively-cooled cold clouds embedded in flows of hot and fast material, as occur in outflowing galaxies. Performing a parameter study of three-dimensional adaptive…

Astrophysics of Galaxies · Physics 2016-05-25 Marcus Brüggen , Evan Scannapieco

We present new cooling models for carbon-oxygen white dwarfs with both H- and He-atmospheres, covering the whole relevant mass range, to extend our updated BaSTI (a Bag of Stellar Tracks and Isochrones) stellar evolution archive. They have…

Solar and Stellar Astrophysics · Physics 2021-12-22 Maurizio Salaris , Santi Cassisi , Adriano Pietrinferni , Sebastian Hidalgo

Presence of dust in galaxies removes half or more of the stellar energy from the UV-optical budget of the Universe and has profound impact on our understanding of how galaxies evolve. Measures of opacity in local galaxies are reviewed…

Astrophysics · Physics 2008-11-26 Daniela Calzetti

We present a new stellar evolution code and a set of results, demonstrating its capability at calculating full evolutionary tracks for a wide range of masses and metallicities. The code is fast and efficient, and is capable of following…

Astrophysics · Physics 2009-11-13 Attay Kovetz , Ofer Yaron , Dina Prialnik

Understanding the interstellar chemistry in low-metallicity environments is crucial to unveil physical and chemical processes in the past Galaxy or those in high-redshift galaxies, where the metallicity was significantly lower compared to…

Astrophysics of Galaxies · Physics 2024-11-08 Takashi Shimonishi

We study the correlation between stellar mass and stellar metallicity in the Evolution and Assembly of GaLaxies and their Environments (EAGLE) suite of cosmological hydrodynamical simulations. At a given stellar mass, simulated galaxies…

Astrophysics of Galaxies · Physics 2018-05-17 María Emilia De Rossi , Richard G. Bower , Andreea S. Font , Joop Schaye , Tom Theuns

The abundance patterns of metal-poor stars provide us a wealth of chemical information about various stages of cosmic chemical evolution. In particular, these stars allow us to study the formation and evolution of the elements, and the…

Astrophysics of Galaxies · Physics 2015-03-17 Anna Frebel

Mass-loss from massive stars is fundamental to stellar and galactic evolution and enrichment of the interstellar medium. Reliable determination of mass-loss rate is dependent upon unravelling details of massive star outflows, including…

Solar and Stellar Astrophysics · Physics 2025-12-18 Timothy N. Parsons , Raman K. Prinja , Derck L. Massa , Alex W. Fullerton

Low-mass stars exhibit, at all stages of their evolution, the signatures of complex physical processes that require challenging modeling beyond standard stellar theory. In this review, we recall the most striking observational evidences…

Astrophysics · Physics 2009-11-13 Corinne Charbonnel , Suzanne Talon

The modelling of massive star evolution is a complex task, and is very sensitive to the way physical processes (such as convection, rotation, mass loss, etc.) are included in stellar evolution code. Moreover, the very high observed fraction…

Solar and Stellar Astrophysics · Physics 2016-12-19 Cyril Georgy , Raphael Hirschi , Sylvia Ekström

Understanding the chemical evolution in star-forming cores is a necessary pre-condition to correctly assess physical conditions when using molecular emission. We follow the evolution of chemistry and molecular line profiles through the…

Astrophysics · Physics 2009-11-10 Jeong-Eun Lee , Edwin A. Bergin , Neal J. Evans

Stellar models provide a vital basis for many aspects of astronomy and astrophysics. Recent advances in observational astronomy -- through asteroseismology, precision photometry, high-resolution spectroscopy, and large-scale surveys -- are…

We present evolutionary models for low mass stars from 0.075 to 1 $\msol$ for solar-type metallicities [M/H]= 0 and -0.5. The calculations include the most recent interior physics and the latest generation of non-grey atmosphere models. We…

Astrophysics · Physics 2008-11-26 Isabelle Baraffe , Gilles Chabrier , France Allard , Peter Hauschildt

We present the updated version of the code used to compute stellar evolutionary tracks in Padova. It is the result of a thorough revision of the major input physics, together with the inclusion of the pre-main sequence phase, not present in…

Solar and Stellar Astrophysics · Physics 2015-03-20 A. Bressan , P. Marigo , L. Girardi , B. Salasnich , C. Dal Cero , S. Rubele , A. Nanni

The stellar initial mass function and the stellar lifetimes are basic ingredients of chemical evolution models, for which different recipes can be found in the literature. In this paper, we quantify the effects on chemical evolution studies…

Astrophysics · Physics 2007-05-23 Donatella Romano , Cristina Chiappini , Francesca Matteucci , Monica Tosi

New calculations of the thermal and electrical electron conductivities are performed for a broad range of physical parameters typical for envelopes of neutron stars and cores of white dwarfs. We consider stellar matter composed of…

Astrophysics · Physics 2011-05-23 A. Y. Potekhin , D. A. Baiko , P. Haensel , D. G. Yakovlev

Metal-poor massive stars drive the evolution of low-mass galaxies, both locally and at high redshift. However, quantifying the feedback they impart to their local surroundings remains uncertain because models of stellar evolution, mass…

Solar and Stellar Astrophysics · Physics 2024-07-31 O. Grace Telford , John Chisholm , Andreas A. C. Sander , Varsha Ramachandran , Kristen B. W. McQuinn , Danielle A. Berg

Opacity is an important ingredient of the evolution of stars. The calculation of opacity coefficients is complicated by the fact that the plasma contains partially ionized heavy ions that contribute to opacity dominated by H and He. Up to…

We present new models for low-mass stars down to the hydrogen-burning limit that consistently couple atmosphere and interior structures, thereby superseding the widely used BCAH98 models. The new models include updated molecular linelists…

Solar and Stellar Astrophysics · Physics 2015-05-20 I. Baraffe , D. Homeier , F. Allard , G. Chabrier

We study the thermal and chemical evolution during the Kelvin-Helmholtz phase of the birth of a neutron star, employing neutrino opacities that are consistently calculated with the underlying equation of state (EOS). Expressions for the…

Astrophysics · Physics 2009-10-30 J. A. Pons , S. Reddy , M. Prakash , J. M. Lattimer , J. A. Miralles