SNRs emitting synchrotron X-rays (SXSNR) accelerate cosmic rays up to a fewhundreds TeV, though the number of them are still smaller to account forall the number of high energy cosmic rays in our Galaxy. Next subject would beto know how many SXSNRs are still unknown behind large absorption in previousobservations, and to estimate the rate of cosmic rays in SNRs quantitatively.We selected SXSNR candidates from ASCA Galactic ridge survey and began to judgewhether they are truly SXSNR or not with ASCA, Chandra, and Newton. Ourobservations will complete our SXSNR search and reveal us the critical cluesabout the subjects of cosmic ray acceleration.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2003-09-21T01:58:54Z/2003-09-25T10:22:42Z
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 Aya Bamba, 2004, 'Search for synchrotron x-ray SNRs as birthplaces of cosmic rays', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-8qzkqax
