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Observed versus modelled stellar CME rates

Published online by Cambridge University Press:  13 January 2020

Martin Leitzinger ,
Petra Odert ,
Krisztian Vida ,
Levente Kriskovics ,
Eike W. Guenther ,
Heidi Korhonen ,
Robert Greimel ,
Arnold Hanslmeier  and
Helmut Lammer
Martin Leitzinger
Affiliation:
University of Graz, Institute of Physics/IGAM, NAWI Graz Universitätsplatz 5, 8010 Graz, Austria email: martin.leitzinger@uni-graz.at
Petra Odert
Affiliation:
University of Graz, Institute of Physics/IGAM, NAWI Graz Universitätsplatz 5, 8010 Graz, Austria email: martin.leitzinger@uni-graz.at
Krisztian Vida
Affiliation:
Konkoly Observatory, MTA CSFK, Konkoly Thege Miklós út 15-17, 1121 Budapest, Hungary
Levente Kriskovics
Affiliation:
Konkoly Observatory, MTA CSFK, Konkoly Thege Miklós út 15-17, 1121 Budapest, Hungary
Eike W. Guenther
Affiliation:
Thüringer Landessternwarte Tautenburg, Karl-Schwarzschild-Observatorium, Sternwarte 5, 07778 Tautenburg, Germany
Heidi Korhonen
Affiliation:
Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100Copenhagen
Robert Greimel
Affiliation:
University of Graz, Institute of Physics/IGAM, NAWI Graz Universitätsplatz 5, 8010 Graz, Austria email: martin.leitzinger@uni-graz.at
Arnold Hanslmeier
Affiliation:
University of Graz, Institute of Physics/IGAM, NAWI Graz Universitätsplatz 5, 8010 Graz, Austria email: martin.leitzinger@uni-graz.at
Helmut Lammer
Affiliation:
Space Research Institute, Austrian Academy of Science, Schmiedlstraße 6, 8042 Graz, Austria
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Abstract

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Stellar coronal mass ejections (CMEs) may play an important role in stellar and planetary evolution, therefore the knowledge on parameter distributions of this energetic activity phenomenon is highly relevant. During the last years several attempts have been made to detect stellar CMEs of late-type main-sequence and pre main-sequence stars from dedicated optical spectroscopic observations. Up to now only a handful of distinct stellar CME detections are known which contradicts the results from stellar CME modelling, which predict higher CME rates. We report on dedicated ongoing and future observational attempts to detect stellar CMEs and discuss the observational results with respect to the results from stellar CME modelling.

Keywords

stars: activitystars: late-typestars: chromospheres
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S345: Origins: From the Protosun to the First Steps of Life , August 2018 , pp. 246 - 247
Copyright
© International Astronomical Union 2020 

References

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