GT - The targeted objects are selected from a list of BAL QSOs which are knownto be weak in soft x-rays but which are good candidates for having strong emission at higher energies. The main aims of the program are to:(i) determine their x-ray properties up to 10 keV in order to show whetherthey are absorbed or altogether weakand (ii) to determine whether they are suitable for follow-up XMM observations. Mass-ejecting BAL QSOs comprise 10% of the totalQSO population and these observations will put important constraintson the underlying mechanisms.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2000-07-31T15:51:46Z/2001-07-30T17:18:24Z
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, Prof RICHARD GRIFFITHS, 2002, 'BROAD ABSORPTION LINE QUASARS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-mxujv66
