IGR J21247+5058 is a new hard X-ray source in the Galactic plane, coincidentwith the core of the double radio source 4C 50.55. Our optical observations showthat the counterpart of the radio core is a F9V star, displaying absorptionlines with velocity shifts typical of an X-ray binary. New observations are inprogress. The unprecedented property of this microquasar is the presence of ahighly variable massive outflow. We propose XMM-Newton observations to confirmthe proposed association between the X-ray source and the core of 4C 50.55, lookfor eventual X-ray emission from the radio lobes, obtain a detailed spectrum ofthe source to derive physical parameters (hydrogen column density, presence ofiron or other eventual lines), and finally look for QPOs and other variability.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2005-05-05T11:01:17Z/2005-11-07T06:33:37Z
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 Marc Ribo, 2006, 'First X-ray observation of a new microquasar with unprecedented massive outflows', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-77kz8ig
