English
Related papers

Related papers: Stellar evolution with rotation XII: Pre-supernova…

200 papers

Our understanding of the convective-engine paradigm driving core-collapse supernovae has been used for 2 decades to predict the remnant mass distribution from stellar collapse. These predictions improve as our understanding of this engine…

High Energy Astrophysical Phenomena · Physics 2022-06-08 Chris L. Fryer , Aleksandra Olejak , Krzysztof Belczynski

We explore properties of core-collapse supernova progenitors with respect to the composite uncertainties in the thermonuclear reaction rates by coupling the reaction rate probability density functions provided by the STARLIB reaction rate…

Solar and Stellar Astrophysics · Physics 2018-02-07 C. E. Fields , F. X. Timmes , R. Farmer , I. Petermann , William M. Wolf , S. M. Couch

Massive and intermediate mass stars play a crucial role in astrophysics. Indeed, massive stars are the main producers of heavy elements, explode in supernovae at the end of their short lifetimes, and may be the progenitors of gamma ray…

Solar and Stellar Astrophysics · Physics 2015-10-21 Daniel R. Reese

We investigate the evolution, final fate, and nucleosynthetic yields of rotating and non-rotating very massive stars (VMS) of zero metallicity. First we address the issue of mass loss during hydrogen burning due to vibrational…

Astrophysics · Physics 2009-10-31 A. Heger , I. Baraffe , C. L. Fryer , S. E. Woosley

We present an extension of the set of models published in Limongi & Chieffi, 2018, ApJS, 237, 13, at metallicity two times solar, i.e. [Fe/H]=0.3. The key physical properties of these models at the onset of the core collapse are mainly due…

Solar and Stellar Astrophysics · Physics 2024-03-29 Lorenzo Roberti , Marco Limongi , Alessandro Chieffi

Both rotation and interactions with binary companions can significantly affect massive star evolution, altering interior and surface abundances, mass loss rates and mechanisms, observed temperatures and luminosities, and their ultimate…

Solar and Stellar Astrophysics · Physics 2020-07-01 Trevor Z. Dorn-Wallenstein , Emily M. Levesque

Mass loss from massive stars ($\ga 8 \msun$) can result in the formation of circumstellar wind blown cavities surrounding the star, bordered by a thin, dense, cold shell. When the star explodes as a core-collapse supernova (SN), the…

Astrophysics · Physics 2009-11-10 Vikram V. Dwarkadas

We have run direct N-body simulations to investigate the impact of stellar evolution and dynamics on the structural properties of young massive (3x10^4 solar masses) star clusters (SCs) with different metallicities (Z=1, 0.1, 0.01 solar…

Astrophysics of Galaxies · Physics 2015-06-22 Alessandro A. Trani , Michela Mapelli , Alessandro Bressan

Surface magnetic fields have a strong impact on stellar mass loss and rotation and, as a consequence, on the evolution of massive stars. In this work we study the influence of an evolving dipolar surface fossil magnetic field with an…

Solar and Stellar Astrophysics · Physics 2019-03-27 Z. Keszthelyi , G. Meynet , C. Georgy , G. A. Wade , V. Petit , A. David-Uraz

Nucleosynthesis, light curves, explosion energies, and remnant masses are calculated for a grid of supernovae resulting from massive stars with solar metallicity and masses from 9.0 to 120 solar masses. The full evolution is followed using…

High Energy Astrophysical Phenomena · Physics 2016-04-20 Tuguldur Sukhbold , T. Ertl , S. E. Woosley , Justin M. Brown , H. -T. Janka

We investigate the fundamental properties of core-collapse Supernova (SN) progenitors from single stars at solar metallicity. We combine Geneva stellar evolutionary models with initial masses of Mini=20-120 Msun with atmospheric/wind models…

Solar and Stellar Astrophysics · Physics 2015-06-17 Jose H. Groh , Georges Meynet , Cyril Georgy , Sylvia Ekstrom

We study the evolution of the interstellar and circumstellar media around massive stars (M > 40M_{\odot}) from the main sequence through to the Wolf-Rayet stage by means of radiationhydrodynamic simulations. We use publicly available…

Solar and Stellar Astrophysics · Physics 2015-05-28 J. A. Toalá , S. J. Arthur

Wolf-Rayet (WR) stars are massive stars that have lost most or all of their hydrogen via powerful stellar winds. Recent observations have indicated that hydrogen-free WR stars have cooler temperatures than those predicted by current…

Solar and Stellar Astrophysics · Physics 2016-04-05 L. A. S. McClelland , J. J. Eldridge

The chief distinction between ordinary supernovae and long-soft gamma-ray bursts (GRBs) is the degree of differential rotation in the inner several solar masses when a massive star dies, and GRBs are rare mainly because of the difficulty…

Astrophysics · Physics 2011-04-11 Stan Woosley , Alexander Heger

A massive star can enter the blue supergiant region either evolving directly from the main-sequence, or evolving from a previous red supergiant stage. The fractions of the blue supergiants having different histories depend on the internal…

Solar and Stellar Astrophysics · Physics 2015-06-15 Hideyuki Saio , Cyril Georgy , Georges Meynet

The understanding of the rotational evolution of early-type stars is deeply related to that of anisotropic mass and angular momentum loss. In this paper, we aim to clarify the rotational evolution of rapidly rotating early-type stars along…

Solar and Stellar Astrophysics · Physics 2019-05-22 D. Gagnier , M. Rieutord , C. Charbonnel , B. Putigny , F. Espinosa Lara

[Abridged] We present a new grid of massive population III star models including the effects of rotation on the stellar structure and chemical mixing, and magnetic torques for the transport of angular momentum. Based on the grid, we also…

Solar and Stellar Astrophysics · Physics 2015-06-03 S. -C. Yoon , A. Dierks , N. Langer

The impact of rotation on the properties of low-mass stars at different evolutionary stages is first described by discussing the properties of stellar models computed with shellular rotation. The observational constraints that are currently…

Solar and Stellar Astrophysics · Physics 2015-06-22 Patrick Eggenberger

Massive stars and their winds have a large influence in their environment, e.g, determining the accretion rate on to the Galactic Centre (GC) super-massive black hole Sgr A*. The winds of those stars collide and are accreted, at a rate that…

Solar and Stellar Astrophysics · Physics 2026-02-11 A. C. Gormaz-Matamala , J. Cuadra , B. Kubátová , J. Kubát , S. Ekström

We determine the effect of rotation on the luminosity of supermassive stars. We apply the Roche model to calculate analytically the emitted radiation from a uniformly rotating, radiation-dominated supermassive configuration. We find that…

Astrophysics · Physics 2009-10-31 Thomas W. Baumgarte , Stuart L. Shapiro
‹ Prev 1 4 5 6 7 8 10 Next ›