A dataset provided by the European Space Agency

Name 020572


DOI https://doi.org/10.5270/esa-6mb3f06
Description We propose to study the weak coronae of "flat activity" stars - objects with very low, nearly constant chromospheric emission. There is evidence that in many cases, these coronae are powered by magnetic fields from the residual turbulent dynamo left while the star.s cyclic dynamo is in a temporary Maunder-like magnetic minimum. These stars permit us to 1) study the weakest and likely least complex coronae, 2) investigate the coronal product of a turbulent dynamo in a solar mass star, and 3) explore (by proxy) the properties of the solar corona in a Maunder-like minimum.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-01-22T21:54:48Z/2004-01-23T15:35:02Z
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 2005-02-15T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2005-02-15T00:00:00Z, 020572, 17.56_20190403_1200. https://doi.org/10.5270/esa-6mb3f06