| Proposal ID | 084072 |
| Title | Stellar Activity Levels from X-Ray Observations of Super-Flare Solar-Analogs |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840720101 |
| DOI | https://doi.org/10.5270/esa-xvn596z |
| Principal Investigator, PI | Ms Lisa Winter |
| Abstract | From recent Kepler studies, super-flares are identified in only a few slowlyrotating, solar-analogs. We obtained X-ray follow-ups of three of these starswith XMM-Newton in October of 2016, which indicated two of the super-flare starshave luminosities over 1000 times the Suns luminosity. The third stellarobservation suffered from high background flaring allowing us only to obtain anupper limit of the X-ray flux. We request follow-up observations to constrainthe luminosity of the third star and establish the stellar activity cycles forthe first two to compare with the Suns solar cycle. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-10-03T06:06:07Z/2019-10-03T15:16:07Z |
| Version | 21.51_20241115_1113 |
| 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 | 2020-10-28T23:00:00Z |
| Last Update | 2026-06-19 |
| Keywords | "stellar activity cycles", "xray flux", "XMM", "xmm newton", "upper limit", "slowly rotating", "XMM-Newton", "stellar activity levels", "solar analogs", "super flares", "background flaring", "super flare stars", "solar cycle" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Ms Lisa Winter, 2020, 'Stellar Activity Levels from X-Ray Observations of Super-Flare Solar-Analogs', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-xvn596z |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |