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Migrating Dynamo Waves and Consequences for Stellar Current Sheets
We study the relation between stellar dynamo-wave propagation and the structure of the stellar magnetic field. Modeling dynamo waves by the...
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Magnetically Confined Wind Shock
Many stars across all classes possess strong enough magnetic fields to influence dynamical flow of material off the stellar surface. For the case of...
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Stellar Rotation Along the HR-Diagram
The HR-diagram (Hertzsprung-Russell diagram, HR-diagram) has already been discussed in the introductory chapter. It is a plot of stellar temperatures...
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Understanding structure in line-driven stellar winds using ultraviolet spectropolarimetry in the time domain
The most massive stars are thought to lose a significant fraction of their mass in a steady wind during the main-sequence and blue supergiant phases....
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Stellar Coronae
The vast majority of “normal” hydrogen-burning stars are of mass equal to or lower than that of our Sun, and they share with our host star the...
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Stellar Evolution, SN Explosion, and Nucleosynthesis
Massive stars evolve toward the catastrophic collapse of their innermost core, producing core-collapse supernova (SN) explosions as the end products....
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Helio-latitude Dependence of the Solar Wind Parameters and the Magneto-Gravitational Dragging of the Solar Wind
A theoretical model of the magnetic-field coupling to the background gravitational field of a rotating Sun-like star is used here to calculate the...
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A Stellar View of the Sun
This invited memoir looks back on my scientific career that straddles the solar and stellar branches of astrophysics, with sprinklings of historical...
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Magnetic Fields and Stellar Surface Structures
We discuss the use of high-resolution spectroscopy for studying inhomogeneities on stellar surfaces. Examples of such inhomogeneities include...
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The Nature of the Emission Spectrum of NGC 7793 P13: Testing the Supercritical Accretion Disk Wind Model
AbstractThe optical spectra of ultraluminous X-ray sources (ULXs) show signs of powerful outflows of matter. These outflows are responsible for the...
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Course 11: Accretion Signatures in Young Stellar Objects
Mass accretion onto the star is taken place in young stellar objects, providing the energy needed to power the excess emission observed at all...
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Close encounters: How stellar flybys shape planet-forming discs
We review the role of stellar flybys and encounters in shaping planet-forming discs around young stars, based on the published literature on this...
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Simulations of Solar and Stellar Dynamos and Their Theoretical Interpretation
We review the state of the art of three dimensional numerical simulations of solar and stellar dynamos. We summarize fundamental constraints of...
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Simulations of common-envelope evolution in binary stellar systems: physical models and numerical techniques
When the primary star in a close binary system evolves into a giant and engulfs its companion, its core and the companion temporarily orbit each...
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Pulsar Wind Nebulae
Pulsar wind nebulae (PWNe), structures powered by energetic pulsars, are known for their detection across the entire electromagnetic spectrum, with...
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Stellar Evolution, SN Explosion, and Nucleosynthesis
Massive stars evolve toward the catastrophic collapse of their innermost core, producing core-collapse supernova (SN) explosions as the end products....
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Observational constraints on stellar feedback in dwarf galaxies
Feedback to the interstellar medium from ionizing radiation, stellar winds and supernovae is central to regulating star formation in galaxies. Owing...
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Quiescence of an outburst of a low-mass young stellar object: LDN1415-IRS
LDN1415-IRS, a low-mass young stellar object (YSO), went into an outburst between 2001 and 2006, illuminating a surrounding nebula, LDN1415-Neb....
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Observing Young Stellar Objects with the VLT Interferometer
Young stellar objects is one of the most exciting topic to be handled with the VLTI. The magnitudes of these stars are too high for current optical...
