Proposal ID | 078378 |
Title | Do normal coronae produce superflares? |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0783780301 |
DOI | https://doi.org/10.5270/esa-1pta1p5 |
Principal Investigator, PI | Dr Stefan Czesla |
Abstract | We propose to obtain XMM-Newton observations of three spectroscopically singlesuperflare stars with large rotation periods (Prot >10 d) to test whether theircoronae adhere to the rotation--activity paradigm. While the strongest flaresobserved on the Sun release about 1e32 erg, Kepler observed a rare species ofG-type dwarfs that produce white-light flares releasing up to four orders ofmagnitude more energy. Notwithstanding their enormous optical outbursts, weidentified two single superflare stars, whose coronae seem to adhere to theconventional rotation--activity relation. Combining the available information,we identified the best single superflare stars to enlarge the sample of ourX-ray study. |
Publications |
|
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2016-06-16T05:23:17Z/2016-06-16T13:28:17Z |
Version | 17.56_20190403_1200 |
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 | 2017-07-07T22:00:00Z |
Keywords | "optical outburst", "rotation activity paradigm", "XMM", "superflares ?.", "coronae adhere", "sun release", "type dwarfs", "1e32 erg", "single superflare stars", "normal coronae", "strongest flare", "XMM-Newton", "rotation periods prot", "rare species", "xmm newton" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Stefan Czesla, 2017, 'Do normal coronae produce superflaresquestionMark', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1pta1p5 |