| Name | 076049 |
| Title | X-ray activity cycles on young, solar-like stars: eps Eri |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760490301 |
| DOI | https://doi.org/10.5270/esa-2ituyk6 |
| Author | European Space Agency |
| Description | We propose to start an XMM-Newton monitoring campaign of the young, solar analog epsEri with the aim to understand dynamo cycles in the early life of the Sun. XMM-Newton has recently detected an X-ray cycle in another young solar-analog, iotaHor, displaying cycle characteristics suggesting violent activity of the Sun at age of virgul600Myr. Such behaviour may affect the evolution of planet atmospheres. To verify if the peculiarities of the cycle on iotaHor are characteristic for the dynamos on such young stars we intend to search for the X-ray cycle of epsEri, the second youngest star with known CaII cycle (Pcyc=3.0yrs). We ask to make two snapshots during AO14 to cover together with an upcoming, already scheduled observation virgul1/3 of the calcium cycle. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-07-19T01:54:29Z/2016-02-01T01:33:21Z |
| 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 | 2017-02-16T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2017, X-Ray Activity Cycles On Young Comma Solar-Like Stars: Eps Eri, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-2ituyk6 |