Magnetic fields in M dwarf stars from high-resolution infrared spectra
(2009) Cool stars, stellar systems and the sun. Proceedings of the 15th Cambridge Workshop 1094. p.124-129- Abstract
- Magnetic fields play a central role in the atmospheric properties and variability of active M dwarfs. Information on the strength and structure of magnetic fields in these objects is vital for understanding dynamo mechanisms and magnetically-driven activity of low-mass stars, and for constraining theories of star formation and evolution. We have initiated the first systematic high-resolution survey of magnetically sensitive infrared spectral lines in M dwarf stars using the CRIRES instrument at the ESO VLT. We have completed observations for a sample of 35 active and inactive M dwarfs. Here we report first results of our project, demonstrating a clear detection of magnetic splitting of lines in the spectra of several M dwarfs. We assess... (More)
- Magnetic fields play a central role in the atmospheric properties and variability of active M dwarfs. Information on the strength and structure of magnetic fields in these objects is vital for understanding dynamo mechanisms and magnetically-driven activity of low-mass stars, and for constraining theories of star formation and evolution. We have initiated the first systematic high-resolution survey of magnetically sensitive infrared spectral lines in M dwarf stars using the CRIRES instrument at the ESO VLT. We have completed observations for a sample of 35 active and inactive M dwarfs. Here we report first results of our project, demonstrating a clear detection of magnetic splitting of lines in the spectra of several M dwarfs. We assess diagnostic potential of different Zeeman-sensitive lines in the observed spectral region and apply spectrum synthesis modelling to infer magnetic field properties of selected M dwarfs. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1454174
- author
- Kochukhov, O. ; Heiter, U. ; Piskunov, N. ; Ryde, Nils LU ; Gustafsson, B. ; Bagnulo, S. and Plez, B.
- organization
- publishing date
- 2009
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- AIP Conference Proceedings
- volume
- 1094
- pages
- 124 - 129
- publisher
- American Institute of Physics (AIP)
- conference name
- Cool stars, stellar systems and the sun. Proceedings of the 15th Cambridge Workshop
- conference dates
- 2008-07-21 - 2008-07-25
- external identifiers
-
- wos:000264752500016
- scopus:64849083363
- ISBN
- 978-0-7354-0627-8
- DOI
- 10.1063/1.3099081
- language
- English
- LU publication?
- yes
- id
- fdb49d21-1b6d-4a43-b2c8-46dedd02faa1 (old id 1454174)
- date added to LUP
- 2016-04-04 10:36:38
- date last changed
- 2024-01-12 20:58:04
@inproceedings{fdb49d21-1b6d-4a43-b2c8-46dedd02faa1, abstract = {{Magnetic fields play a central role in the atmospheric properties and variability of active M dwarfs. Information on the strength and structure of magnetic fields in these objects is vital for understanding dynamo mechanisms and magnetically-driven activity of low-mass stars, and for constraining theories of star formation and evolution. We have initiated the first systematic high-resolution survey of magnetically sensitive infrared spectral lines in M dwarf stars using the CRIRES instrument at the ESO VLT. We have completed observations for a sample of 35 active and inactive M dwarfs. Here we report first results of our project, demonstrating a clear detection of magnetic splitting of lines in the spectra of several M dwarfs. We assess diagnostic potential of different Zeeman-sensitive lines in the observed spectral region and apply spectrum synthesis modelling to infer magnetic field properties of selected M dwarfs.}}, author = {{Kochukhov, O. and Heiter, U. and Piskunov, N. and Ryde, Nils and Gustafsson, B. and Bagnulo, S. and Plez, B.}}, booktitle = {{AIP Conference Proceedings}}, isbn = {{978-0-7354-0627-8}}, language = {{eng}}, pages = {{124--129}}, publisher = {{American Institute of Physics (AIP)}}, title = {{Magnetic fields in M dwarf stars from high-resolution infrared spectra}}, url = {{http://dx.doi.org/10.1063/1.3099081}}, doi = {{10.1063/1.3099081}}, volume = {{1094}}, year = {{2009}}, }