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Related papers: Influence of Rotation on Stellar Evolution

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Thousands of confirmed and candidate exoplanets have been identified in recent years. Consequently, theoretical research on the formation and dynamical evolution of planetary systems has seen a boost, and the processes of planet-planet…

Earth and Planetary Astrophysics · Physics 2016-09-06 M. B. N. Kouwenhoven , Qi Shu , Maxwell Xu Cai , Rainer Spurzem

(Abridged) Rotation has been shown to play a determinant role at very low metallicity, bringing heavy mass loss where almost none was expected. Is this still true when the metallicity strictly equals zero? The aim of our study is to get an…

Astrophysics · Physics 2009-11-13 S. Ekström , G. Meynet , C. Chiappini , R. Hirschi , A. Maeder

Young star clusters can inherit bulk rotation from the molecular clouds from which they have formed. This rotation can affect the long-term evolution of a star cluster and its constituent stellar populations. In this study, we aim to…

The magnetic fields of solar-type stars are observed to cycle over decadal periods -11 years in the case of the Sun. The fields originate in the turbulent convective layers of stars and have a complex dependency upon stellar rotation rate.…

Solar and Stellar Astrophysics · Physics 2017-08-02 A. Strugarek , P. Beaudoin , P. Charbonneau , A. S. Brun , J. -D. do Nascimento

We investigate the neutron stars spin evolution (breaking, inclination angle evolution and radiative precession), taking into account the superfluidity of the neutrons in the star core. The neutron star is treated as a two-component system…

High Energy Astrophysical Phenomena · Physics 2013-03-25 D. P. Barsukov , O. A. Goglichidze , A. I. Tsygan

I attempt to summarize our knowledge of planet formation in evolving protoplanetary discs. I first review the physics of disc evolution and dispersal. For most of the disc lifetime evolution is driven by accretion and photoevaporation, and…

Earth and Planetary Astrophysics · Physics 2015-06-16 Richard Alexander

The dynamical evolution of stellar clusters is driven to a large extent by their environment. Several studies so far have considered the effect of tidal fields and their variations, such as, e.g., from giant molecular clouds, galactic…

Astrophysics of Galaxies · Physics 2015-05-30 I. Berentzen , E. Athanassoula

The rotation axis of the Sun is misaligned from the mean angular momentum plane of the Solar system by about 6 degrees. This obliquity significantly exceeds the ~1-2 degree distribution of inclinations among the planetary orbits and…

Solar and Stellar Astrophysics · Physics 2019-07-10 Christopher Spalding

I discuss and consider the status of observational determinations of the rotation velocities of white dwarf stars via asteroseismology and spectroscopy. While these observations have important implications on our understanding of the…

Solar and Stellar Astrophysics · Physics 2014-10-28 Steven D. Kawaler

We test the effect of assumptions about stellar motion on the behavior of gravitational instabilities in protoplanetary disks around solar-type stars by performing two simulations that are identical in all respects except the treatment of…

Earth and Planetary Astrophysics · Physics 2015-03-17 Scott Michael , R. H. Durisen

We review the current basic picture of the evolution of massive stars and how their evolution and structure changes as a function of initial mass. We give an overview of the fate of modern (Pop I) and primordial (Pop III) stars with…

Astrophysics · Physics 2009-11-07 A. Heger , S. E. Woosley , C. L. Fryer , N. Langer

The distribution of hot Jupiters, for which star-planet interactions can be significant, questions the evolution of exosystems. We aim to follow the orbital evolution of a planet along the rotational and structural evolution of the host…

The early pre-main sequence phase during which they are still likely surrounded by an accretion disk represents a puzzling stage of the rotational evolution of solar-mass stars. While they are still accreting and contracting they do not…

Solar and Stellar Astrophysics · Physics 2019-11-27 Florian Gallet , Claudio Zanni , Louis Amard

Spiral galaxies offer a unique opportunity to study the role of star formation in galaxy evolution and to test various theoretical star formation schemes. I review some recent relevant work on the evolution of spiral galaxies. Detailed…

Astrophysics · Physics 2007-05-23 Nikos Prantzos

Observations of the dust and gas around embedded stellar clusters reveal some of the processes involved in their formation and evolution. Large scale mass infall with rates dM/dt=4e-4 solar masses/year is found to be disrupted on small…

Astrophysics · Physics 2015-06-24 Jonathan Williams

Terrestrial planets formed within gaseous protoplanetary disks can accumulate significant hydrogen envelopes. The evolution of such an atmosphere due to XUV driven evaporation depends on the activity evolution of the host star, which itself…

Earth and Planetary Astrophysics · Physics 2016-08-06 C. P. Johnstone , M. Güdel , A. Stökl , H. Lammer , L. Tu , K. G. Kislyakova , T. Lüftinger , P. Odert , N. V. Erkaev , E. A. Dorfi

Spiral patterns are important agents of galaxy evolution. In this review, I describe how the redistribution of angular momentum by recurrent transient spiral patterns causes the random speeds of stars to rise over time, metallicity…

Astrophysics · Physics 2008-03-14 J. A. Sellwood

The so-called solar cycle is generally characterized by the quasi-periodic oscillatory evolution of the photospheric spots number. This quasi-periodic pattern has always been an intriguing question. Several physical models were proposed to…

Solar and Stellar Astrophysics · Physics 2015-05-14 Alexis Klutsch , Rubens Freire Ferrero

In the solar convection zone, rotation couples with intensely turbulent convection to build global-scale flows of differential rotation and meridional circulation. Our sun must have rotated more rapidly in its past, as is suggested by…

The Geneva evolutionary code has been modified to study the advanced stages (Ne, O, Si burnings) of rotating massive stars. Here we present the results of four 20 solar mass stars at solar metallicity with initial rotational velocities of…

Astrophysics · Physics 2015-06-24 Raphael Hirschi , Georges Meynet , Andre Maeder , Stephane Goriely