A Bcool spectropolarimetric survey of over 150 solar-type stars
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...
Published in: | Proceedings of the International Astronomical Union |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2013
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s1743921314001896 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1743921314001896 |
id |
crcambridgeupr:10.1017/s1743921314001896 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s1743921314001896 2023-05-15T18:50:45+02:00 A Bcool spectropolarimetric survey of over 150 solar-type stars Marsden, Stephen Petit, Pascal Jeffers, Sandra do Nascimento, Jose-Dias Carter, Bradley Brown, Carolyn 2013 http://dx.doi.org/10.1017/s1743921314001896 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1743921314001896 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Proceedings of the International Astronomical Union volume 9, issue S302, page 138-141 ISSN 1743-9213 1743-9221 Astronomy and Astrophysics Space and Planetary Science journal-article 2013 crcambridgeupr https://doi.org/10.1017/s1743921314001896 2022-04-07T08:08:22Z 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. Article in Journal/Newspaper narval narval Cambridge University Press (via Crossref) Canada Proceedings of the International Astronomical Union 9 S302 138 141 |
institution |
Open Polar |
collection |
Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Astronomy and Astrophysics Space and Planetary Science |
spellingShingle |
Astronomy and Astrophysics Space and Planetary Science Marsden, Stephen Petit, Pascal Jeffers, Sandra do Nascimento, Jose-Dias Carter, Bradley Brown, Carolyn A Bcool spectropolarimetric survey of over 150 solar-type stars |
topic_facet |
Astronomy and Astrophysics Space and Planetary Science |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Marsden, Stephen Petit, Pascal Jeffers, Sandra do Nascimento, Jose-Dias Carter, Bradley Brown, Carolyn |
author_facet |
Marsden, Stephen Petit, Pascal Jeffers, Sandra do Nascimento, Jose-Dias 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 |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1017/s1743921314001896 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1743921314001896 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
narval narval |
genre_facet |
narval narval |
op_source |
Proceedings of the International Astronomical Union volume 9, issue S302, page 138-141 ISSN 1743-9213 1743-9221 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s1743921314001896 |
container_title |
Proceedings of the International Astronomical Union |
container_volume |
9 |
container_issue |
S302 |
container_start_page |
138 |
op_container_end_page |
141 |
_version_ |
1766244505037570048 |