A dataset provided by the European Space Agency

Name 060167
Title Hyperluminous X-ray Sources


DOI https://doi.org/10.5270/esa-gtn4lbz
Author Dr Timothy Roberts
Description It is now thought that most ultraluminous X-ray sources harbour stellar remnant (up to 100 M(sun)) black holes undergoing extreme accretion. However, this does not preclude some ULXs being powered by larger intermediate-mass black holes. Perhaps the best candidates are the rare hyperluminous X-ray sources, the most luminous of ULXs with L(x) above 10^41 erg-s. Here we propose XMM-Newton observations of two HLXs found as serendipitous sources in the 2XMM catalogue. We will determine whether their characteristics are similar to other ULXs, e.g. showing a spectral break at a few keV, implying they are small black holes accreting at extreme rates, or whether they instead appear like IMBHs accreting in a sub-Eddington (high or very high) state.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2009-06-27T06:13:20Z/2009-06-27T22:33:36Z
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 2010-07-15T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010-07-15T00:00:00Z, 060167, 17.56_20190403_1200. https://doi.org/10.5270/esa-gtn4lbz