A dataset provided by the European Space Agency

Name 080187
Title Coronal activity cycles in solar analog stars


DOI https://doi.org/10.5270/esa-ckryrvu
Author Dr Fabio Favata
Description We propose to pursue a long-term monitoring program of a selection of solar-type stars all of which show clear to the solar cycle -- in their CaII flux, with the aim of detecting and studying, for the first time in X-rays, the presence of activity cycles in stars other than the Sun. Thus far only very active stars -- not show CaII cycles but only irregular variability -- have monitored with a sufficient time base in X-rays, with no evidence for cycles. XMM makes it possible, for the first time, to efficiently monitor the low-activity, cyclic stars which are the true analogues of thus to effectively constrain the characteristics of the cycles on stars other than the Sun.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2017-05-01T05:16:54Z/2018-04-27T01:07:33Z
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 2019-05-21T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2019-05-21T22:00:00Z, 080187, 17.56_20190403_1200. https://doi.org/10.5270/esa-ckryrvu