Magnetic Activity Cycles in the Exoplanet Host Star epsilon Eridani

  title={Magnetic Activity Cycles in the Exoplanet Host Star epsilon Eridani},
  author={T. Metcalfe and A. Buccino and B. P. Brown and S. Mathur and D. Soderblom and T. Henry and P. Mauas and R. Petrucci and J. Hall and S. Basu},
  journal={arXiv: Solar and Stellar Astrophysics},
  • T. Metcalfe, A. Buccino, +7 authors S. Basu
  • Published 2012
  • Physics
  • arXiv: Solar and Stellar Astrophysics
  • The active K2 dwarf epsilon Eri has been extensively characterized, both as a young solar analog and more recently as an exoplanet host star. As one of the nearest and brightest stars in the sky, it provides an unparalleled opportunity to constrain stellar dynamo theory beyond the Sun. We confirm and document the 3 year magnetic activity cycle in epsilon Eri originally reported by Hatzes and coworkers, and we examine the archival data from previous observations spanning 45 years. The data show… CONTINUE READING
    51 Citations

    Figures and Tables from this paper

    An application of a solar-type dynamo model for ε Eridani
    • 1
    • PDF
    An X-ray activity cycle on the young solar-like star $\epsilon \ \rm Eridani$
    • 3
    • Highly Influenced
    • PDF
    Sun-Like Magnetic Cycles in the Rapidly-Rotating Young Solar Analog HD 30495
    • 28
    • PDF
    Magnetic Evolution and the Disappearance of Sun-Like Activity Cycles
    • 33
    • PDF
    Magnetic activity of the solar-like star HD 140538.
    • PDF
    Asteroseismology of solar-type stars
    • 22
    • PDF


    Discovery of a 1.6 Year Magnetic Activity Cycle in the Exoplanet Host Star ι Horologii
    • 74
    • PDF
    Activity Cycles of Southern Asteroseismic Targets
    • 7
    • PDF
    Lithium depletion and the rotational history of exoplanet host stars
    • 128
    • PDF
    Chromospheric Activity in G and K Main-Sequence Stars, and What It Tells Us about Stellar Dynamos
    • 144
    • Highly Influential
    Structure in the ∊ Eridani Debris Disk
    • 120
    • Highly Influential
    Magnetic Wreaths and Cycles in Convective Dynamos
    • 115
    • PDF
    Magnetic cycles in a convective dynamo simulation of a young solar-type star
    • 159
    • PDF
    Differential Rotation of Eridani Detected by MOST
    • 73
    • PDF