A dataset provided by the European Space Agency

Name: DOES QUIESCENT CORONAL ACTIVITY EXIST IN LATE M-L DWARFSquestionMark
Published: 2005-06-13T00:00:00Z

Proposal ID	020386
Title	DOES QUIESCENT CORONAL ACTIVITY EXIST IN LATE M-L DWARFS?
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0203860101
DOI	https://doi.org/10.5270/esa-eopvi0u
Principal Investigator, PI	Dr RACHEL OSTEN
Abstract	We request X-ray observations of two late M-early L dwarfs --- LHS 2065 (M9),and Kelu-1 (L2). The picture of activity becomes increasing blurred as one movespast spectral type M8. Several cool objects have been shown to maintain Halphaand transition region fluxes at the level evident in early M dwarfs. There issuggestive evidence that quiescent X-ray emission from M dwarfs as late as M8can also be maintained at a comparable level. Our deep exposures with XMM-Newtonare designed to improve the current upper limits on X-ray and radio quiescentemission for these two active cool objects, and test the hypotheses that (1)similar heating mechanisms are operating in these objects and earlier M dwarfs,and (2) X-rays can be formed in active cool brown dwarfs such as Kelu-1.
Publications	Quiescent X-ray emission from the M9 dwarf LHS 2065 \|Robrade, J., Schmitt, J. H. M. M., \| A&A \| 487-1139 \| 2008 \| 2008A&A...487.1139R \| http://ui.adsabs.harvard.edu/#abs/2008A&A...487.1139R The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive \|Clerc, N., Sadibekova, T., et al. \| MNRAS \| 423-3561 \| 2012 \| 2012MNRAS.423.3561C \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.3561C Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift \|Yershov, V. N., \| Ap&SS \| 354-97 \| 2014 \| 2014Ap&SS.354...97Y \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV \|Clerc, N., Merloni, A., et al. \| MNRAS \| 463-4490 \| 2016 \| 2016MNRAS.463.4490C \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.463.4490C 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 X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation \|Molham, Mona, Clerc, Nicolas, et al. \| MNRAS \| 494-161 \| 2020 \| 2020MNRAS.494..161M \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.494..161M Multiwavelength classification of X-ray selected galaxy cluster candidates using convolutional neural networks \|Kosiba, Matej, Lieu, Maggie, et al. \| MNRAS \| 496-4141 \| 2020 \| 2020MNRAS.496.4141K \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.496.4141K SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release \|Clerc, N., Kirkpatrick, C. C., et al. \| MNRAS \| 497-3976 \| 2020 \| 2020MNRAS.497.3976C \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.497.3976C 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 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
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2004-04-24T21:54:29Z/2004-04-25T02:20:15Z
Version	17.56_20190403_1200
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	2005-06-13T00:00:00Z
Keywords	"dwarfs ?.", "suggestive evidence", "cool objects", "XMM", "comparable level", "upper limits", "transition region fluxes", "radio quiescent emission", "active cool objects", "level evident", "XMM-Newton", "quiescent xray emission", "heating mechanisms", "M9", "maintain halpha", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr RACHEL OSTEN, 2005, 'DOES QUIESCENT CORONAL ACTIVITY EXIST IN LATE M-L DWARFSquestionMark', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-eopvi0u