A Bcool spectropolarimetric survey of over 150 solar-type stars
Article
ERA Journal ID | 211244 |
---|---|
Article Category | Article |
Authors | Marsden, Stephen (Author), Petit, Pascal (Author), Jeffers, Sandra (Author), do Nascimento, Jose-Dias (Author), Carter, Bradley (Author), Brown, Carolyn (Author), Marsden S., Petit P., Jeffers S., Do Nascimento J.D., Carter B. and Brown C. |
Editors | Petit, Pascal, Jardine, Moira and Spruit, Hendrik C. |
Journal Title | Proceedings of the International Astronomical Union |
Journal Citation | 9 (S302), pp. 138-141 |
Number of Pages | 4 |
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/S1743921314001896 |
Abstract | As part of the Bcool project, over 150 solar-type stars chosen mainly from planet search databases have been observed between 2006 and 2013 using the NARVAL and ESPaDOnS spectropolarimeters on the Telescope Bernard Lyot (Pic du Midi, France) and the Canada France Hawaii Telescope (Mauna Kea, USA), respectively. These single snapshot observations have been used to detect the presence of magnetic fields on 40% of our sample, with the highest detection rates occurring for the youngest stars. From our observations we have determined the mean surface longitudinal field (or an upper limit for stars without detections) and the chromospheric surface fluxes, and find that the upper envelope of the absolute value of the mean surface longitudinal field is directly correlated to the chromospheric emission from the star and increases with rotation rate and decreases with age. © International Astronomical Union 2014. |
Keywords | line: profiles; stars: activity; stars: magnetic fields |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
519999. Other physical sciences not elsewhere classified | |
510203. Nonlinear optics and spectroscopy | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Computational Engineering and Science Research Centre |
University of Toulouse, France | |
Georg August University of Gottingen, Germany | |
Federal University of Rio Grande do Norte, Brazil | |
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 | 84905721687 |
Title | A Bcool spectropolarimetric survey of over 150 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/q233w/a-bcool-spectropolarimetric-survey-of-over-150-solar-type-stars
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