A Bcool spectropolarimetric survey of over 150 solar-type stars
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), r...
Main Authors: | , , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
arXiv
2013
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48550/arxiv.1310.6507 https://arxiv.org/abs/1310.6507 |
id |
ftdatacite:10.48550/arxiv.1310.6507 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48550/arxiv.1310.6507 2023-05-15T18:50:45+02:00 A Bcool spectropolarimetric survey of over 150 solar-type stars Marsden, Stephen Petit, Pascal Jeffers, Sandra Nascimento, Jose-Dias do Carter, Bradley Brown, Carolyn 2013 https://dx.doi.org/10.48550/arxiv.1310.6507 https://arxiv.org/abs/1310.6507 unknown arXiv https://dx.doi.org/10.1017/s1743921314001896 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Solar and Stellar Astrophysics astro-ph.SR FOS Physical sciences article-journal Article ScholarlyArticle Text 2013 ftdatacite https://doi.org/10.48550/arxiv.1310.6507 https://doi.org/10.1017/s1743921314001896 2022-04-01T13:15:53Z 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. : 4 pages, 3 figures, to appear in the proceedings of the IAUS302 "Magnetic fields throughout stellar evolution" Text narval narval DataCite Metadata Store (German National Library of Science and Technology) Canada |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Solar and Stellar Astrophysics astro-ph.SR FOS Physical sciences |
spellingShingle |
Solar and Stellar Astrophysics astro-ph.SR FOS Physical sciences Marsden, Stephen Petit, Pascal Jeffers, Sandra Nascimento, Jose-Dias do Carter, Bradley Brown, Carolyn A Bcool spectropolarimetric survey of over 150 solar-type stars |
topic_facet |
Solar and Stellar Astrophysics astro-ph.SR FOS Physical sciences |
description |
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. : 4 pages, 3 figures, to appear in the proceedings of the IAUS302 "Magnetic fields throughout stellar evolution" |
format |
Text |
author |
Marsden, Stephen Petit, Pascal Jeffers, Sandra Nascimento, Jose-Dias do Carter, Bradley Brown, Carolyn |
author_facet |
Marsden, Stephen Petit, Pascal Jeffers, Sandra Nascimento, Jose-Dias do Carter, Bradley Brown, Carolyn |
author_sort |
Marsden, Stephen |
title |
A Bcool spectropolarimetric survey of over 150 solar-type stars |
title_short |
A Bcool spectropolarimetric survey of over 150 solar-type stars |
title_full |
A Bcool spectropolarimetric survey of over 150 solar-type stars |
title_fullStr |
A Bcool spectropolarimetric survey of over 150 solar-type stars |
title_full_unstemmed |
A Bcool spectropolarimetric survey of over 150 solar-type stars |
title_sort |
bcool spectropolarimetric survey of over 150 solar-type stars |
publisher |
arXiv |
publishDate |
2013 |
url |
https://dx.doi.org/10.48550/arxiv.1310.6507 https://arxiv.org/abs/1310.6507 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
narval narval |
genre_facet |
narval narval |
op_relation |
https://dx.doi.org/10.1017/s1743921314001896 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1310.6507 https://doi.org/10.1017/s1743921314001896 |
_version_ |
1766244506798129152 |