A dataset provided by the European Space Agency

Proposal ID 060632
Title Testing Black Hole Unification
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DOI https://doi.org/10.5270/esa-2tqe4bd
Principal Investigator, PI Dr Simon Vaughan
Abstract We propose a 480 ks observation of NGC 4051 to definitively test forquasi-periodic oscillations (QPOs) analogous to those seen in Galactic BlackHoles (GBHs). These would confirm the unifying link between accreting blackholes of all masses and provide a powerful new diagnostic of the strong-gravityregion, giving the most model-independent constraints on black hole spin. Wewill reveal for the first time the X-ray variability of a black hole atfrequencies far above the Keplerian frequency of the innermost stable circularorbit, beyond what is possible for GBHs, and use this to probe the dynamics andgeometry of the X-ray emission region.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2009-05-03T10:22:29Z/2009-06-16T20:15:00Z
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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2010-07-01T00:00:00Z
Keywords "xray emission region", "testing blackhole unification", "xray variability", "blackhole spin", "keplerian frequency", "NGC 4051", "definitively test", "galactic blackhole gbhs", "gravity region", "accreting blackhole", "ngc 4051", "unifying link"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Simon Vaughan, 2010, 'Testing Black Hole Unification', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-2tqe4bd