We propose observations with XMM-Newton and NuSTAR of the bright, hard, andpersistent LMXB Z- source GX13+1 to (1) measure the hard X-ray halo between 2-7+keV and (2) to measure its spectrum and timing characteristics in the 5-50 keVband. With a broad energy range and multiple observatories, we will removestatistical and thus systematic uncertainties in the halo analysis, revealingthe size distribution of large grains along the line of sight.
Instrument
EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2017-04-08T04:17:57Z/2017-04-08T22:02:58Z
Version
19.17_20220121_1250
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 Randall Smith, 2018, 'Measuring Dust Properties from High Energy X-ray Halos', 19.17_20220121_1250, European Space Agency, https://doi.org/10.5270/esa-p37sqer
