A dataset provided by the European Space Agency

Name 050401
Title Sleuthing X-ray Emission in Very Low Mass Dwarfs: Spectroscopy of VB 10


DOI 10.5270/esa-xlhmuil
Author Dr Rachel Osten
Description The bulk of very low mass stars with X-ray detections in quiescence show a marked decline in chromospheric and coronal activity past a spectral type of M7, some objects display these emissions, suggesting a decrease in chromospheric and coronal heating efficiencies. Previous X-ray investigations have focussed mostly on detections, revealing evidence for low coronal temperatures. Yet, among active and inactive earlier spectral type M dwarfs, X-ray spectra show the presence of hot coronal plasma, thought to be related to the unknown coronal heating mechanism. We propose an observation with XMM-Newton to investigate the spectral distribution of coronal plasma in the M8 dwarf VB 10 as a way to constrain the coronal heating processes taking place in very low mass dwarfs.
Publication Quiescent and flaring X-ray emission from the nearby M-T dwarf binary SCR 1845-6357 . Robrade, J., Poppenhaeger, K., . A&A . 513-12 . 2010 . 2010A&A...513A..12R ,
A Correlation Between Host Star Activity and Planet Mass for Close-in Extrasolar Planets? . Poppenhaeger, K., Schmitt, J. H. M. M., . ApJ . 735-59 . 2011 . 2011ApJ...735...59P ,
A scenario of planet erosion by coronal radiation . Sanz-Forcada, J., Ribas, I., et all. . A&A . 511-8 . 2010 . 2010A&A...511L...8S ,
Coronal properties of planet-bearing stars . Poppenhaeger, K., Robrade, J., . A&A . 515-98 . 2010 . 2010A&A...515A..98P ,
Coronal properties of planet-bearing stars (Corrigendum) . Poppenhaeger, K., Robrade, J., . A&A . 529-1 . 2011 . 2011A&A...529C...1P ,
Exospheric solar wind charge exchange as seen by XMM-Newton . Carter, J. A., Semba, S., . AN . 333-313 . 2012 . 2012AN....333..313C ,
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 ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
A scenario of planet erosion by coronal radiation (Corrigendum) . Sanz-Forcada, J., Ribas, I., et all. . A&A . 520-1 . 2010 . ...,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2008-04-06T12:14:52Z/2008-04-07T06:09:27Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 2009-06-05T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-06-05T00:00:00Z, 050401, 17.56_20190403_1200. https://doi.org/10.5270/esa-xlhmuil