|Title||The two brightest unidentified Galactic sources of the new H.E.S.S. survey|
|Author||Dr Omar Tibolla|
|Description||In a survey of the Galactic plane performed in 2007 with the High Energy Stereoscopic System (H.E.S.S.) a lot of new sources have been discovered and most of them are still unidentified. We propose to use XMM-Newton to perform follow-up on the two brightest newly discovered sources, namely HESS J1507-622 and HESS J1843-033, to identify their possible X-ray counterparts. Both sources have no clear positional counterparts: HESS J1507-622 does not show any counterpart at all, whereas an offset PWN is one of the possible explanations for HESS J1843-033. The aim is to obtain the morphological and spectral information of the possible counterpart in helping to understand the emission mechanism of these 2 sources: the predicted X-ray flux is sufficient for detailed studies of these sources.|
|Publication||XMM-Newton and Chandra X-ray follow-up observations of the VHE gamma-ray source HESS J1507-622 . Tibolla, O., Kaufmann, S., . A&A . 567-74 . 2014 . 2014A&A...567A..74T ,
Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
Exploring the potential X-ray counterpart of the puzzling TeV gamma-ray source HESS J1507-622 with new Suzaku observations . Eger, P., Domainko, W. F., . MNRAS . 447-3564 . 2015 . 2015MNRAS.447.3564E ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Discovery and follow-up studies of the extended, off-plane, VHE gamma-ray source HESS J1507-622 . H.E.S.S. Collaboration, Acero, F., et all. . A&A . 525-45 . 2011 . 2011A&A...525A..45H ,
|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, 2010-03-07T00:00:00Z, 055631, 17.56_20190403_1200. https://doi.org/10.5270/esa-mk3mtv6|