A dataset provided by the European Space Agency

Name 076049
Title X-ray activity cycles on young, solar-like stars: eps Eri


DOI https://doi.org/10.5270/esa-2ituyk6
Author Dr Beate Stelzer
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, 2017-02-16T23:00:00Z, 076049, 17.56_20190403_1200. https://doi.org/10.5270/esa-2ituyk6