|Title||X-Ray Emission from the Halo of M31|
|Author||Dr Rosanne Di Stefano|
|Description||We request 100 ksec (net) to study the X-ray properties of the halo of M31. We propose to observe 10 halo fields for 10 ksec each, covering 1200 kpc^2. XMM will detect all point sources with luminosities above virgul10^36 ergs-s; we expect to discover 50-150 M31 halo X-ray sources, including X-ray binaries ejected from GCs, X-ray binaries ejected from the galaxy.s disk, very hot central stars of planetary nebulae, and supersoft X-ray binaries. The fields we have chosen include 27 globular clusters (GCs), which comprise almost 1-3 of all GCs not projected onto the the galaxy.s optical disk. These observations will test models of galactic halo populations, as well as models for the formation of X-ray binaries in GCs.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2004-08-02T00:00:00Z, 015158, 17.56_20190403_1200. https://doi.org/10.5270/esa-gha6emb|