| Proposal ID | 090120 |
| Title | Probing X-ray loop heights of giant active regions on fully convective stars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0901200101 |
| DOI | https://doi.org/10.57780/esa-xspcptv |
| Principal Investigator, PI | Ms Ekaterina Ilin |
| Abstract | We have recently discovered a new way to determine the latitude of giant activeregions on fully convective M dwarfs, using rotationally modulated optical flarelight curves. This yielded a sample of four stars with well-determined latitudesof their dominant active region. We aim to detect the potential rotationalmodulation of such an active region in X-rays and compare it to the detectedoptical modulation. This encodes information on the typical coronal loop heightsof such giant active regions on M dwarfs. We propose to collect EPIC lightcurves for the star in the sample that is suitable for X-ray follow-up, coveringtwo stellar rotation periods for a total of 33 ks. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-08-05T06:14:00Z/2022-08-05T17:20:40Z |
| 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 | 2023-08-23T00:00:00Z |
| Keywords | "optical modulation", "potential rotational modulation", "stellar rotation periods", "convective stars", "encodes information", "giant active region", "active region", "EPIC", "dominant active region" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Ms Ekaterina Ilin, 2023, 'Probing X-ray loop heights of giant active regions on fully convective stars', 20.08_20220509_1852, European Space Agency, https://doi.org/10.57780/esa-xspcptv |