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Differential Rotation in Sun-like Stars from Surface Variability and Asteroseismology

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Part of the Springer Theses book series (Springer Theses)

Table of contents

About this book

Introduction

In his PhD dissertation Martin Bo Nielsen performs observational studies of rotation in stars like the Sun. The interior rotation in stars is thought to be one of the driving mechanisms of stellar magnetic activity, but until now this mechanism was unconstrained by observational data.

NASA’s Kepler space mission provides high-precision observations of Sun-like stars which allow rotation to be inferred using two independent methods: asteroseismology measures the rotation of the stellar interior, while the brightness variability caused by features on the stellar surface trace the rotation of its outermost layers. By combining these two techniques Martin Bo Nielsen was able to place upper limits on the variation of rotation with depth in five Sun-like stars. These results suggest that the interior of other Sun-like stars also rotate in much the same way as our own Sun.

Keywords

Stellar Rotation Asteroseismology Differential Rotation Sun-like Stars Photometric Variability Kepler Mission Starspots

Authors and affiliations

  1. 1.Institut für AstrophysikGeorg-August-UniversitätGöttingenGermany

About the authors

Martin Bo Nielsen received his B.Sc and M.Sc degrees from Aarhus University in Denmark, during which he spent one year as a student support astronomer at the Nordic Optical Telescope on La Palma, Spain. This was followed by a PhD on the topic of differential rotation in Sun-like stars, at Georg-August-Universität in Göttingen, under the supervision of Prof. Laurent Gizon and Dr. Hannah Schunker.     

Bibliographic information

  • Book Title Differential Rotation in Sun-like Stars from Surface Variability and Asteroseismology
  • Authors Martin Bo Nielsen
  • Series Title Springer Theses
  • Series Abbreviated Title Springer Theses
  • DOI https://doi.org/10.1007/978-3-319-50989-1
  • Copyright Information Springer International Publishing Switzerland 2017
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy Physics and Astronomy (R0)
  • Hardcover ISBN 978-3-319-50988-4
  • Softcover ISBN 978-3-319-84539-5
  • eBook ISBN 978-3-319-50989-1
  • Series ISSN 2190-5053
  • Series E-ISSN 2190-5061
  • Edition Number 1
  • Number of Pages XVI, 101
  • Number of Illustrations 11 b/w illustrations, 18 illustrations in colour
  • Topics Astrophysics and Astroparticles
    Astronomy, Observations and Techniques
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