|Title||Exploring the X-ray properties of a new black widow system|
|Author||Dr Andrea Possenti|
|Description||PSR J1731-1847 is a recently discovered eclipsing millisecond pulsar in a circularized orbit with a very low mass companion still pouring matter in the binary. It represents only the fourth known case of a black widow pulsar in the galactic field. X-ray emission from intra-binary shock is expected in this system due to the interaction between pulsar wind and matter released from the companion star. In the framework of a multi-wavelength campaign, we ask for a 28 ks exposure (one orbit of the MSP) to: i) detect the X-ray counterpart to the binary; ii) investigate the occurrence of variability in the X-ray emission along the orbit (signature of intra-binary shock); iii) constrain the distribution of plasma in the system and the geometry of the X-ray emission.|
|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, 2013-09-21T00:00:00Z, 069471, 17.56_20190403_1200. https://doi.org/10.5270/esa-ptmfrau|