A dataset provided by the European Space Agency

Name 050278
Title An XMM-Newton Sample of Unusually X-Ray Bright Broad Absorption Line Quasars
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502780101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502780201
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502780301
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502780601
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502780701
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502780801
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502780901
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502781001

DOI 10.5270/esa-j3iwevr
Author Dr Robert Gibson
Description Recent optical spectroscopy has identified a large sample of SDSS quasars (QSOs) with broad CIV and-or MgII absorption lines (BALs). The relationship between UV and X-ray absorbers-continuum is controversial, with important implications for models of QSO structure. Short, 10 ks observations of X-ray bright BALQs will give CCD X-ray spectra enabling us to measure and constrain absorber states, continuum properties, and Fe Ka lines, with ramifications for BALQ structure. Our targets are unusually X-ray bright for BALQs. Understanding these exceptional sources will shed light on the physics of BALQs in general. Our sample includes four radio-loud and two low-ionization BALQs; high-counts X-ray spectra of such objects are rare.
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Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-05-20T15:50:37Z/2007-10-15T13:34:18Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2008-11-27T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2008-11-27T00:00:00Z, 050278, 17.56_20190403_1200. https://doi.org/10.5270/esa-j3iwevr