In the HESS survey of the Galactic plane performed in 2006-2008, many new VHEgamma-ray sources have been discovered and most of them are still unidentified.One interesting newly discovered source has several positional counterparts: aSNR, two rather powerful pulsars and several unidentified sources in the hardX-ray range and at GeV energies, that are suggested to be variable. Recently aGeV pulsar has been detected in this region by Fermi. We propose for a 25ksXMM-Newton observation on this source to study if the TeV and the GeV source arephysically connected and to shed light on their nature. The aim is to obtainmorphological and spectral information on the possible X-ray counterparts inorder to better understand the emission mechanism of this source(s).
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2012-03-03T05:22:51Z/2012-03-03T13:08:07Z
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, Mrs Sarah Kaufmann, 2013, 'The nature of a newly discovered Galactic TeV source with variable GeV emissionquestionMark', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-0ugsdkb
