During their soft state edge-on black hole transients show blue-shiftedabsorption lines in their X-ray spectra due to hot and equatorial disk winds.Blue-shifted absorption lines have also been discovered in optical andultraviolet(UV). These features must be produced in an outflow, but the physicalconditions required to form them are very different. The three feautures havenever been observed at the same time. It is unclear if they are linked todistinct outflows or simply with different regions. We propose to answer thisquestion with simultaneous time-resolved spectroscopy of a high-inclinationsoft-state system in the X-ray, UV and optical bands. This will allow us to testif the three types of wind features are present simultaneously and whether they display correlated variability.
Instrument
EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2020-03-26T05:57:16Z/2020-03-27T06:03:56Z
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 Noel Castro Segura, 2021, 'Tracing accretion disk winds across the electromagnetic spectrum in BHXRBs', 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-6grn5wm
