| 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 | 2025-08-04 |
| Keywords | "XMM", "XMM-Newton", "twin stars", "magnetic activity", "dwarf twins", "conventional thinking", "coi couperus", "twin wide binary", "xmm newton data", "virtually identical twin", "nearly identical masses", "xmm newton", "xray activity", "short term flaring", "evolutionary models", "magnetic predictability", "magnetic properties", "robust test" |
| 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 |