| Proposal ID | 088170 |
| Title | Fraternal or Identical? The Magnetic Properties of M Dwarf Twins |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0881700101 |
| DOI | https://doi.org/10.57780/esa-awtxc3g |
| Principal Investigator, PI | Dr Rachel Osten |
| Abstract | We propose for 68 ksec of observing time on XMM-Newton to monitor X-ray activityon four pairs of virtually identical twin M dwarfs. These twin wide binaries arecomprised of stars with nearly identical masses, ages, and compositions.Evolutionary models and conventional thinking suggest that such sets of twinstars should evolve nearly co-equally, resulting in similar levels of magneticactivity. These XMM-Newton data will be used in concert with optical monitoringthat provides information about short-term flaring, medium-term rotationperiods, and long-term stellar spot cycles, which can then be correlated withX-ray activity. This work is carried out as part of CoI Couperus Ph.D. thesis.This will be a robust test of magnetic predictability. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-03-25T06:29:43Z/2022-03-25T11:32:38Z |
| Version | PPS_NOT_AVAILABLE |
| 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 | 2022-03-31T00:00:00Z |
| Last Update | 2026-03-04 |
| Keywords | "twin wide binary", "robust test", "coi couperus", "XMM", "xmm newton", "twin stars", "xray activity", "magnetic activity", "dwarf twins", "XMM-Newton", "magnetic predictability", "xmm newton data", "evolutionary models", "virtually identical twin", "nearly identical masses", "conventional thinking", "short term flaring", "magnetic properties" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Rachel Osten, 2022, 'Fraternal or Identical? The Magnetic Properties of M Dwarf Twins', PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.57780/esa-awtxc3g |