|Title||Unveil the nature of ROSAT Swift-XRT Counterparts of Fermi 3FHL Unidentifid|
|Author||Dr Sara Cutini|
|Description||We propose the observations of 3 sources detected in Third Fermi High Energy Catalog (3FHL; E > 10GeV) that have an X-ray counterpart inside the Fermi error reg ion but are still unidentified. These sources, lying on the Galactic plane (BII <10 deg), could hide a new class of Galactic gamma-ray emitters. We ask to observe these sources with XMM-Newton for 60 ks in total ,nominal time, plus 40 % to avoid the background radiation problem (http:--xmmtools.cosmos.esa.int-external xmm_user_support-documentation-AOpolicy-node34.html), in order to study the ene rgetic and morphology in the X rays, allowing us the identification of sites of extreme particle acceleration.|
|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, 2019-01-08T23:00:00Z, 080502, 17.56_20190403_1200. https://doi.org/10.5270/esa-0llf6w5|