We propose to observe a probable hot plasma/cold cloud X-ray emitting interfaceregion surrounding the Coalsack Nebula. Such an interface will provide a nearlyunique insight into the physical parameters of transition regions, which are afeature of models of the interstellar medium but are not observed (except inactive SNR shock fronts). The motivation for the observation is three-fold, toverify the existence of the X-ray bright transition region as observed with inROSAT data, determine the origin of the X-ray emitting plasma, and determine thephysical state of the plasma. Specifically, to answer the question whether theinterface region between the cloud and the surrounding hot gas is experiencingevaporation, condensation, or turbulent mixing.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2004-02-20T21:05:44Z/2005-01-08T11:17:47Z
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 STEVE SNOWDEN, 2006, 'A SILVER LINING FOR THE COALSACK NEBULA comma A HOT PLASMA/COLD CLOUD INTERFACE', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ki51y4z
