We propose to study a small sample of Galactic supernova remnants thatwe have recently discovered to be X-ray emitters. The sample consistsof ejecta-dominated SNRs as well as ones with normal composition. Theproposed XMM observations will be an order of magnitude deeper thanexisting X-ray data. The specific goals of the XMM study are to (1)measure accurate values for the elemental abundances, (2) determinethe evolutionary state of the remnants from their X-ray emissionproperties (e.g., temperature, ionization timescale, flux), and (3)search for hard X-ray sources that might be pulsars or embedded plerions.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2001-02-18T05:21:14Z/2001-08-28T14:00:51Z
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, Prof John P. Hughes, 2002, 'XMM Studies of a New Sample of Young Ejecta-Dominated Galactic SNRs', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-7oi2bg2
