|Title||Detecting the Sun in 2-Gyr old open clusters|
|Author||Dr gianpiero tagliaferri|
|Description||Observations of old open clusters have been performed with ROSAT but with limited sensitivity and spatial resolution and allowed to investigate the evolution only of very active binaries. Currently the coronal activity-age relation beyond 1-Gyr is not known. We propose a 50 ks XMM-Newton pointings to the 2-Gyr old clusters NGC 752 and IC 4651, which are well studied in the optical. We will study the coronal activity evolution in solar type stars, in post main-sequence and binary stars|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2004-09-17T00:00:00Z, 014978, 17.56_20190403_1200. https://doi.org/10.5270/esa-th08smo|