The majority of broad absorption line quasars are X-ray weak which is usuallyexplained by the absorption of the out-flowing wind in combination with thewinds velocity shear. PG 0043-036 is the most extreme X-ray weak quasar known todate, but shows surprisingly only a very weak broad absorption line system. Aconclusive interpretation is hampered by the absence of simultaneousmeasurements which is mandatory as both, the X-ray flux and the broad absorptionsystem are known to be variable. We propose simultaneous XMM-Newton, HST (1orbit) and 10m Hobby-Eberly or SALT Telescope observations in order tocharacterize simultaneously PG 0043-036.s X-ray emission and (broad) absorption(line system) properties.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2013-07-18T14:15:39Z/2013-07-18T23:25:39Z
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 Norbert Schartel, 2014, 'The extreme X-ray weakness of PG 0043+039', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-udek5k4
