Name | 076349 |
Title | Challenging the rotation-activity paradigm II |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0763490301 |
DOI | https://doi.org/10.5270/esa-f5vodyl |
Author | Dr Stefan Czesla |
Description | We propose to obtain XMM-Newton snapshots of seven of the most slowly rotating G-type superflare stars identified by the Kepler satellite to test whether they adhere to the rotation-activity paradigm. While the strongest flares observed on the Sun release about 1e32 erg, Kepler observed G-type dwarfs that produce white-light flares releasing up to four orders of magnitude more energy. Curiously, many of these superflare stars are apparently slow rotators. Notwithstanding, our recent XMM-Newton campaign showed that these stars can be extremely bright X-ray sources (about 1e30 erg/s). Consequently, we identified the slowest rotators among the superflare stars amenable to X-ray observations to study their X-ray emission. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2015-09-13T00:12:51Z/2015-11-23T13:48:07Z |
Version | 17.56_20190403_1200 |
Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2016-12-14T23:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Stefan Czesla, 2016, 076349, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-f5vodyl |