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Related papers: Formation and Evolution of Accreting Compact Objec…

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A model for massive stars is constructed by piecing together evolutionary algorithms for the protostellar structure, the environment, the inflow and the radiation feedback. We investigate specified accretion histories of constant,…

Astrophysics of Galaxies · Physics 2015-06-17 Michael D. Smith

Understanding the collapse of clouds and the formation of protoplanetary disks is essential to understanding the formation of stars and planets. Infall and accretion, the mass-aggregation processes that occur at envelope and disk scales,…

Massive stars have a profound influence on the Universe, but their formation remains poorly understood. We review the current status of observational and theoretical research in this field, describing the various stages of an evolutionary…

Astrophysics · Physics 2007-05-23 H. Beuther , E. B. Churchwell , C. F. McKee , J. C. Tan

Stars and planets can be seen as the second fundamental building blocks of baryons in the universe (only second to the dust and gas in molecular clouds). Their formation involves dust grain growth of many orders of magnitude and a myriad of…

The formation of a star is a dynamic process fed by the gravitational collapse of a molecular cloud core. Theoretical models and observations suggest that the majority of this infalling material settles into a protoplanetary disk before…

Astrophysics of Galaxies · Physics 2017-12-08 Doug Johnstone

A detailed understanding of the physics of star and planet formation requires study of individual objects as well as statistical assessment of global properties and evolutionary trends. Observational investigations of circumstellar material…

Astrophysics · Physics 2007-05-23 Lynne A. Hillenbrand

We explore the motivation behind large stellar surveys in Galactic astronomy, in particular, surveys that measure the photometric, phase space and abundance properties of thousands or millions of stars. These observations are essential to…

Astrophysics · Physics 2007-05-23 Joss Bland-Hawthorn , Ken Freeman

Newly formed stars are often observed to possess circumstellar disks, from which mass continues to be accreted onto the star and fed into outflowing jets, and which eventually may evolve into dusty debris disks and planetary systems. Recent…

Astrophysics · Physics 2007-05-23 A. Konigl

The majority of all stars are members of a binary system. The evolution of such binary stars and their subsequent production of pairs of compact objects in tight orbits, such as double neutron stars and double black holes, play a central…

High Energy Astrophysical Phenomena · Physics 2023-06-09 Thomas M. Tauris , Ed P. J. van den Heuvel

Recent developments in the spectropolarimetric study of compact objects, specifically black holes (stellar and massive) and neutron stars are reviewed. The lectures are organized around five topics: disks, jets, outflows, neutron stars and…

Astrophysics · Physics 2007-05-23 Roger Blandford , Eric Agol , Avery Broderick , Jeremy Heyl , Leon Koopmans , Hee-Won Lee

The determination of chemical abundances in star-forming galaxies and the study of their evolution on cosmological timescales are powerful tools for understanding galaxy formation and evolution. This contribution presents the latest results…

Astrophysics · Physics 2007-05-23 T. Contini , M. -A. Treyer , M. Mouhcine , M. Sullivan , R. S. Ellis

In this chapter I give an overall description of the structure and evolution of stars of different masses, and review the main ingredients included in state-of-the-art calculations aiming at reproducing observational features. I give…

Solar and Stellar Astrophysics · Physics 2017-12-27 Víctor Silva Aguirre

The last few years have seen tremendous progress in our understanding of cataclysmic variable stars. As a result, we are finally developing a much clearer picture of their evolution as binary systems, the physics of the accretion processes…

Solar and Stellar Astrophysics · Physics 2015-03-17 Christian Knigge

When a massive star ends its life, its core collapses, forming a neutron star or black hole and producing some of the most energetic explosions in the universe. Core-collapse supernovae and long-duration gamma-ray bursts are the violent…

High Energy Astrophysical Phenomena · Physics 2015-06-16 C. L. Fryer

In this article we consider the formation and evolution of black holes, especially those in binary stars where radiation from the matter falling on them can be seen. We consider a number of effects introduced by some of us, which are not…

Astrophysics · Physics 2009-10-31 G. E. Brown , C. -H. Lee , R. A. M. J. Wijers , H. A. Bethe

Massive stars are among the most important objects in the Universe and many (most?) of them are formed in binaries. A selection of observational and theoretical facts that illustrate the importance of binaries and the evolution of massive…

Solar and Stellar Astrophysics · Physics 2015-05-20 D. Vanbeveren

We now understand how low mass stars evolve through cloud collapse and disc accretion, but whether higher mass stars are also disc accretors is as yet unknown. Spectropolarimetry observations can help in answering this basic question, as…

Astrophysics · Physics 2007-05-23 Jorick S. Vink , Janet E. Drew , Tim J. Harries , Rene D. Oudmaijer

In this chapter we review the formation and evolution of compact binaries with neutron star and/or black hole components (i.e. LMXBs, HMXBs, binary pulsars). After an introduction we discuss stellar evolution in binaries and the processes…

Astrophysics · Physics 2007-05-23 Thomas M. Tauris , Ed van den Heuvel

We consider current state of star formation theory and requirements to observations in millimeter and submillimeter ranges which are necessary for resolution of the most actual problems of the physics of star formation. Two key features of…

Astrophysics · Physics 2009-11-13 D. Z. Wiebe , M. S. Kirsanova , B. M. Shustov , Ya. N. Pavlyuchenkov

The central engines of disc-accreting stellar-mass black holes appear to be scaled down versions of the supermassive black holes that power active galactic nuclei. However, if the physics of accretion is universal, it should also be…

High Energy Astrophysical Phenomena · Physics 2015-10-12 S. Scaringi , T. J. Maccarone , E. Koerding , C. Knigge , S. Vaughan , T. R. Marsh , E. Aranzana , V. Dhillon , S. C. C. Barros