| Proposal ID | 090094 |
| Title | In search of the lowest activity iFIP star |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0900940101 |
| DOI | https://doi.org/10.57780/esa-379yaag |
| Principal Investigator, PI | Prof Katja Poppenhaeger |
| Abstract | Stellar coronal abundances display different patterns from those in thephotospheres, with enhancements of elements of low first ionisation potentials(FIP). The reasons for this are suspected to be rooted in ponderomotive forcesin the stellar atmosphere. For stars with high magnetic activity this coronalabundance patterns is seen inversed (iFIP). Interestingly, for M dwarfs the iFIPpattern is observed across the board; however, only moderately high activity Mdwarfs have been probed for coronal abundances so far. Here we propose tomeasure the coronal abundances of a typical low activity M dwarf in 72 ks. Wewill probe a crucial coronal temperature range to test if the iFIP patternpersists for M dwarfs of low activity or not. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-05-06T19:28:48Z/2022-05-07T22:35:28Z |
| Version | 20.08_20220509_1852 |
| 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 | 2023-05-25T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "ponderomotive forces", "ionisation potentials fip", "stellar atmosphere", "low activity", "coronal temperature range", "ifip pattern", "inversed ifip", "typical low activity", "coronal abundance", "ifip pattern persists", "coronal abundance patterns", "magnetic activity" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Katja Poppenhaeger, 2023, 'In search of the lowest activity iFIP star', 20.08_20220509_1852, European Space Agency, https://doi.org/10.57780/esa-379yaag |