| Proposal ID | 082046 |
| Title | Spin-down, dynamos, and habitability: XMM and K2 exploration of nearby M dwarfs |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0820460101 |
| DOI | https://doi.org/10.5270/esa-ype95ra |
| Principal Investigator, PI | Prof Beate Stelzer |
| Abstract | The rotation-activity relation of M dwarfs is of high astrophysical interest dueto (i) the predicted dynamo transition at the fully convective boundary (SpT ~M3), (ii) differences in angular momentum loss with respect to solar-type stars,and (iii) the small radii of their planets habitable zones where they arestrongly exposed to the stellar high-energy emission. Our combined K2 missionand Chandra study has shown that previous studies of the X-ray - rotationconnection are incomplete for slowly rotating and low-activity fully convectivestars. We aim here at placing the ultimate constraints with ultra-deepXMM-Newton pointings for three bright, nearby fully convective (M4) stars thathave long rotation periods (30...80 d) derived by us from K2 lightcurves. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-06-11T06:06:21Z/2019-04-01T03:54:44Z |
| 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 | 2020-05-03T22:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "k2 lightcurves", "habitability \: xmm", "habitable zones", "rotation activity relation", "M3", "solar type stars", "k2 exploration", "rotation periods", "low activity", "angular momentum loss", "predicted dynamo transition", "xray rotation connection", "XMM-Newton", "slowly rotating", "combined k2 mission", "convective m4 stars", "convective stars", "energy emission", "XMM", "convective boundary spt" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Beate Stelzer, 2020, 'Spin-down, dynamos, and habitability: XMM and K2 exploration of nearby M dwarfs', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ype95ra |