We propose to use XMM-Newton to search for X-ray pulsations in the counterpartto a newly-discovered Fermi LAT Source. This source is a binary millisecondpulsar. The radio observations have also found the orbital solution proving thecompanion has very low mass, suggesting a black widow system. A Chandra image ofthe LAT field provides possible X-ray counterparts. The radio position suggestsone of these is the best candidate although it is not yet definitive. Specificobjectives of the XMM search are (1) detect X-ray pulsations, get pulsed fluxand light curve, (2) determine off-pulse flux, again to compare with otherwavelengths; (3) spectrum of the source as a function of orbital phase.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2010-05-18T07:49:34Z/2010-05-19T07:54:54Z
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, Dr Kent Wood, 2011, 'XMM Studies of a Millisecond Pulsar Coincident with a Fermi LAT Source', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-c9hr5c0
