We propose to observe a sample of late A to early F stars with XMM-Newton tosystematically investigate coronal properties at the onset of stellar magneticactivity in X-rays. These stars with a thin or localized outer convection zone,have been only poorly explored by modern X-ray instruments. This study focusseson nearby, presumably single main-sequence stars with well known stellarparameters to study the interplay between developing convective envelope androtation that drives a stellar dynamo mechanism and generates coronal X-rayemission.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2013-08-28T19:45:20Z/2014-04-08T06:05:55Z
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, Dr Jan Robrade, 2015, 'The onset of magnetic activity in X-rays - From late A to early F stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tu9imlb
