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Magnetic Fields in O, B, and a Stars
  • Language: en
  • Pages: 140

Magnetic Fields in O, B, and a Stars

The last few decades have seen significant progress in our understanding of the occurrence of magnetic fields in stars with radiative envelopes, in particular in massive stars and in intermediate mass stars at early evolutionary stages. This book provides a comprehensive review of the most recent achievements in the measurements of stellar magnetic fields in O, B and A stars. These include the archetypes of stellar magnetism, the chemically peculiar Ap and Bp stars, O- and early B-type stars with their magnetospheres, accreting Herbig Ae/Be stars, Wolf-Rayet stars and high-mass X-ray binaries, among others. It provides an overview of the underlying physics for the interpretation of the data ...

The Very Large Telescope Interferometer Challenges for the Future
  • Language: en
  • Pages: 313

The Very Large Telescope Interferometer Challenges for the Future

A JENAM 2002 Workshop, Porto, Portugal, 3-5 September 2002

Mycoparasitism of Fomitopsis Pinicola (Sw.) P. Karst. by Antrodiella Citrinella Niemelä & Ryvarden
  • Language: en

Mycoparasitism of Fomitopsis Pinicola (Sw.) P. Karst. by Antrodiella Citrinella Niemelä & Ryvarden

  • Type: Book
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  • Published: 2023
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  • Publisher: Unknown

Abstract: Antrodiella species (Agaricomycotina, Polyporales) are often growing on or near to the living, dead, or dying fruitbodies of pioneer wood-inhabiting fungi. Antrodiella citrinella always occurs on wood that previously has been decayed by the polypore Fomitopsis pinicola. However, the underlying mechanism remained unclear. Based on field observations, it has been assumed that the succeeding species is not only a highly competitive wood decomposer but also a mycoparasite feeding on the preceding species. To investigate the interaction between A. citrinella and the putative host F. pinicola, the species were grown in dual cultures at different temperatures (5-25 °C). The interaction t...

Determination of Atmospheric Parameters of B-, A-, F- and G-Type Stars
  • Language: en
  • Pages: 312

Determination of Atmospheric Parameters of B-, A-, F- and G-Type Stars

  • Type: Book
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  • Published: 2014-07-10
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  • Publisher: Springer

This book introduces the theory of stellar atmospheres. Almost everything we know about stars is by analysis of the radiation coming from their atmospheres. Several aspects of astrophysics require accurate atmospheric parameters and abundances. Spectroscopy is one of the most powerful tools at an astronomer’s disposal, allowing the determination of the fundamental parameters of stars: surface temperature, gravity, chemical composition, magnetic field, rotation and turbulence. These can be supplemented by distance measurements or pulsation parameters providing information about stellar interior and stellar evolution, otherwise unavailable. The volume is based on lectures presented at the Wrocław's Spectroscopic School aimed at training young researchers in performing quantitative spectral analysis of low-, mid-, and high-resolution spectra of B, A, and F-type stars.

Multiple Stars across the H-R Diagram
  • Language: en
  • Pages: 304

Multiple Stars across the H-R Diagram

This volume presents results from the ESO workshop Multiple Stars across the H-R Diagram, held in Garching in July 2005. It covers observations of multiple stars from ground and space, dynamical and stellar evolution in multiple systems, formation and early evolution of multiple stars, and special components of multiple stars. The book reviews the current state of observational and theoretical knowledge and discusses future studies for further progress in the field.

The Jewel on the Mountaintop
  • Language: en
  • Pages: 564

The Jewel on the Mountaintop

  • Type: Book
  • -
  • Published: 2012
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  • Publisher: ESO

Die Geschichte der Europäischen SÃ1/4dsternwarte (ESO) nimmt den Leser mit auf eine Reise von den ersten Teleskopen bis hin zu zukÃ1/4nftigen Projekten und verdeutlicht, wie der stete Fortschritt unsere Sicht auf das Universum immer wieder verändert.

Astronomical Polarisation from the Infrared to Gamma Rays
  • Language: en
  • Pages: 393

Astronomical Polarisation from the Infrared to Gamma Rays

This book serves as both a primer to astronomical polarimetry and an authoritative overview of its application to various types of astronomical objects from AGN, compact stars, binary systems, stars across the HR diagram, transients, the interstellar medium and solar system bodies. It starts with an historical perspective, a discussion of polarimetric theory, instrumentation and techniques in wave bands from the near infrared to gamma rays. The book presents the state of the art in astronomical polarimetry. It is motivated by the new X-ray polarimeters due to be launched in the next four years and improved optical polarimeters on large telescopes requiring a new analysis of polarimetric theory, methodology and results.This book will be suitable as advanced undergraduate companion text, a primer for graduate students and all researchers with an interest in astronomical polarimetry.

The Origins of Stars and Planets: The VLT View
  • Language: en
  • Pages: 540

The Origins of Stars and Planets: The VLT View

  • Type: Book
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  • Published: 2013-12-01
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  • Publisher: Springer

Many important observational clues about our understanding of how stars and planets form in the interior of molecular clouds have been amassed using recent technological developments. ESO's Very Large Telescope promises to be a major step forward in the investigation of stellar nurseries and infant stars. This volume collects papers from the leaders in this very timely field of astrophysical research. It presents theoretical and a host of observational results and many papers show the plans for future observations.

Binary Stars as Critical Tools and Tests in Contemporary Astrophysics (IAU S240)
  • Language: en
  • Pages: 524

Binary Stars as Critical Tools and Tests in Contemporary Astrophysics (IAU S240)

IAU S240 focuses on recent advances across the broad field of binary star research.

Magnetic Fields in O, B, and A Stars
  • Language: en

Magnetic Fields in O, B, and A Stars

  • Type: Book
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  • Published: 2021
  • -
  • Publisher: Unknown

The last few decades have seen significant progress in our understanding of the occurrence of magnetic fields in stars with radiative envelopes, in particular in massive stars and in intermediate mass stars at early evolutionary stages. This book provides a comprehensive review of the most recent achievements in the measurements of stellar magnetic fields in O, B, and A stars. These include the archetypes of stellar magnetism, the chemically peculiar Ap and Bp stars, O- and early B-type stars with their magnetospheres, accreting Herbig Ae/Be stars, Wolf-Rayet stars, and high-mass X-ray binaries, among others. It provides an overview of the underlying physics for the interpretation of the data and identifies the requirements, both observational and theoretical, for improving our understanding of the origin of the magnetic fields in early-type stars. It aims to educate scientists working on stars, who are not yet experts in magnetic field studies, assuming that the reader is already familiar with basic terms and concepts of stellar astrophysics.