Starspots on young solar-type stars
Article
ERA Journal ID | 211244 |
---|---|
Article Category | Article |
Authors | Brown, Carolyn (Author), Carter, Brad (Author), Marsden, Stephen (Author), Waite, Ian (Author), Brown C., Carter B., Marsden S. and Waite I. |
Editors | Petit, Pascal, Jardine, Moira and Spruit, Henk |
Journal Title | Proceedings of the International Astronomical Union |
Journal Citation | 9 (S302), pp. 148-149 |
Number of Pages | 2 |
Year | 2014 |
Publisher | Cambridge University Press |
Place of Publication | Cambridge, United Kingdom |
ISSN | 1743-9213 |
1743-9221 | |
Digital Object Identifier (DOI) | https://doi.org/10.1017/S1743921314001938 |
Abstract | Doppler Imaging of starspots on young solar analogues is a way to investigate the early history of solar magnetic activity by proxy. Doppler images of young G-dwarfs have yielded the presence of large polar spots, extending to moderate latitudes, along with measurements of the surface differential rotation. The differential rotation measurement for one star (RX J0850.1-7554) suggests it is possibly the first example of a young G-type dwarf whose surface rotates as almost a solid body, in marked contrast to the differential rotation of other rapidly rotating young G-dwarfs and the present-day Sun. Overall, our Doppler imaging results show that the young Sun possessed a fundamentally different dynamo to today. © International Astronomical Union 2014. |
Keywords | stars: activity; stars: imaging; stars: spots |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
510402. Condensed matter imaging | |
510903. Mesospheric, thermospheric, ionospheric and magnetospheric physics | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Computational Engineering and Science Research Centre |
Event | International Astronomical Union Symposium No. 302 (IAU 302): Magnetic Fields throughout Stellar Evolution |
International Astronomical Union Symposium | |
Institution of Origin | University of Southern Queensland |
Scopus ID | 84905733076 |
Title | Starspots on young solar-type stars |
ISBN | 9781107044982 |
Event Details | International Astronomical Union Symposium No. 302 (IAU 302): Magnetic Fields throughout Stellar Evolution Event Date 25 to end of 30 Aug 2013 Event Location Biarritz, France |
Event Details | International Astronomical Union Symposium IAU Symposium |
https://research.usq.edu.au/item/q2341/starspots-on-young-solar-type-stars
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