We propose to continue the ongoing long-term monitoring program of a sample ofsolar-type stars to search for cyclic behavior, analogous to the one observedfor the Sun, in their X-ray emission. These stars have moderate levels ofactivity and are thus true ..solar analogs.. XMM-Newton makes it possible, forthe first time, to efficiently monitor the low-activity, cyclic stars and toeffectively study the characteristics of the activity cycles on stars other thanthe Sun.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2006-10-29T23:47:25Z/2007-05-04T18:49:26Z
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.
European Space Agency, Mr Jan Robrade, 2008, 'Activity cycles in solar-type stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-aa236x8
