A dataset provided by the European Space Agency

Name: Tau Boo's magnetic polarity switch in X-rays
Published: 2012-02-09T00:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	065114
Title	Tau Boos magnetic polarity switch in X-rays
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651140201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651140301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651140401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651140501
DOI	https://doi.org/10.5270/esa-ruvjqdp
Principal Investigator, PI	Mrs Katja Poppenhaeger
Abstract	Tau Boo is the first star other than the Sun which has been observed to have aglobal magnetic field with switching polarity. In contrast to the Sun, Tau Boosmagnetic cycle has a duration of only two years. We propose to monitor the starin four short EPIC exposures of 8~ks each, backing up these X-ray observationswith ongoing measurements of its magnetic field. This will allow us to compareX-ray luminosities and coronal temperatures derived from EPIC spectra to themagnetic field configuration of Tau Boo.
Publications	A magnetic cycle of tau Bootis? The coronal and chromospheric view \|Poppenhaeger K. Gunther H. M. \| AN \| 333-26 \| 2012 \| 2012AN....333...26P \| http://ui.adsabs.harvard.edu/#abs/2012AN....333...26P XMM-Newton publication statistics \|Ness J.-U. Parmar A. N. et al. \| AN \| 335-210 \| 2014 \| 2014AN....335..210N \| http://ui.adsabs.harvard.edu/#abs/2014AN....335..210N Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function \|Vagnetti F. Middei R. et al. \| A&A \| 593-55 \| 2016 \| 2016A&A...593A..55V \| http://ui.adsabs.harvard.edu/#abs/2016A&A...593A..55V The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch Eric W. \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F A new sample of X-ray selected narrow emission-line galaxies. II. Looking for True Seyfert 2 \|Pons E. Watson M. G. \| A&A \| 594-72 \| 2016 \| 2016A&A...594A..72P \| http://ui.adsabs.harvard.edu/#abs/2016A&A...594A..72P Four-month chromospheric and coronal activity cycle in tau Bootis \|Mittag M. Robrade J. et al. \| A&A \| 600-119 \| 2017 \| 2017A&A...600A.119M \| http://ui.adsabs.harvard.edu/#abs/2017A&A...600A.119M Discovery of a 23.8 h QPO in the Swift light curve of XMMU J134736.6+173403 \|Carpano S. Jin C. \| MNRAS \| 477-3178 \| 2018 \| 2018MNRAS.477.3178C \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.477.3178C Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P Robust constraints on feebly interacting particles using XMM-Newton \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D Search for Young Stellar Objects within 4XMM-DR13 Using CatBoost and SPE \|Ma Xiangyao Zhang Yanxia et al. \| AJ \| 168-210 \| 2024 \| 2024AJ....168..210M \| http://ui.adsabs.harvard.edu/#abs/2024AJ....168..210M New 511 keV Line Data Provide Strongest sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 973-L6 \| 2024 \| 2024ApJ...973L...6D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...973L...6D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2010-06-19T10:27:27Z/2011-01-23T03:00:19Z
Version	21.51_20241115_1113
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2012-02-09T00:00:00Z
Last Update	2026-07-09
Keywords	"magnetic field configuration", "tau boo", "coronal temperatures", "short epic", "EPIC", "compare xray luminosities", "magnetic polarity switch", "magnetic cycle", "switching polarity", "epic spectra", "magnetic field", "global magnetic field"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Mrs Katja Poppenhaeger, 2012, 'Tau Boo's magnetic polarity switch in X-rays', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-ruvjqdp
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.