|Title||Joint XMM-Newton and H.E.S.S. view of PSR B1259-63 before stellar disc passage|
|Author||Dr Denys Malyshev|
|Description||PSR B1259-63 is one of only two known GRLBs that hosts a pulsar orbiting a Be star. Close to periastron the system is detected from radio through X-ray up to 10 TeV energies. The latest TeV analysis indicates that in the very high energy domain, it exhibits a 3-peak light curve around periastron. While two of the maxima roughly coincide with the periods when the pulsar crosses the Be-star disc and can be explained within existing models, the origin of the third peak remains elusive. We ask for joint H.E.S.S.-XMM-Newton observations of this peak in 2021 to probe its periodic appearance in the TeVs and to search for and investigate its X-ray counterpart. Due to ground-based visibility constraints, this will be the only opportunity to observe in periastron in TeV and X-rays for next 7 years.|
|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, 2022-02-26T00:00:00Z, 088142, 18.02_20200221_1200. https://doi.org/esa-[xxxxxxx]|