| Proposal ID | 086448 |
| Title | Extrasolar space weather\\: X-ray properties of low radio frequency M dwarfs |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0864480101 |
| DOI | https://doi.org/10.57780/esa-y3wpdtb |
| Principal Investigator, PI | Dr Joseph Callingham |
| Abstract | The space weather experienced by exoplanets is dictated by conditions present inthe corona of the star. X-ray observations measure the coronal base density,while low- frequency radio emission traces higher, more tenuous coronal layers.We have recently achieved the first low-frequency detections of M dwarfs, whichwe interpret as evidence of star-exoplanet interactions. However, such aninterpretation relies heavily on the measurements of the coronal base densityfrom X-rays. Three of our low-frequency detected M dwarfs are not detected byROSAT. The proposed observations will allow us to determine whether the radioemission is originating in a star-like atmosphere, where the emitting electronsare embedded in a corona, or from a planet-like magnetosphere. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-08-09T22:51:52Z/2020-11-06T20:04:44Z |
| Version | 18.02_20200221_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 | 2021-11-28T00:00:00Z |
| Keywords | "tenuous coronal layers", "coronal base density", "low radio frequency", "low frequency", "relies heavily", "star exoplanet interactions", "low frequency detections", "emitting electrons", "ROSAT", "space weather experienced", "radio emission" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Joseph Callingham, 2021, 'Extrasolar space weather\\: X-ray properties of low radio frequency M dwarfs', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-y3wpdtb |