| Name | 078024 |
| Title | Properties of X-ray activity cycles on young solar-like stars: epsilon Eri |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0780240101 |
| DOI | https://doi.org/10.5270/esa-5vjjsvu |
| Author | European Space Agency |
| Description | We propose to continue our XMM-Newton monitoring 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 an age of virgul600Myr. Such behavior may affect the evolution of planet atmospheres. To verify if the peculiarities of the cycle on iotaHor are typical 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 here for two snapshots (2 x 5 ksec), which we will combine with previously executed or scheduled observations -- including our two AO14 snapshots. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2016-07-19T20:33:22Z/2017-01-16T19:55:42Z |
| 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 | 2018-03-29T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2018, Properties Of X-Ray Activity Cycles On Young Solar-Like Stars: Epsilon Eri, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5vjjsvu |