A dataset provided by the European Space Agency

Name 015065
Title Towards Understanding Ultraluminous X-ray Sources in Nearby Galaxies


DOI https://doi.org/10.5270/esa-dp5d79e
Author Dr Manfred Pakull
Description One of the unsolved questions in contemporary astrophysics is the nature of the bright non-nuclear X-ray sources which appear to surpass by large margins the Eddington luminosity of a "stellar-mass" compact object. We have recently discovered extended emission nebulae around several ultraluminous sources (ULX) in nearby galaxies which are partly photoionized by their XUV radiation; extent and expansion velocity suggest that these ULX were formed in energetic events some 1E6 years ago. Here we propose to observe a sample of bright ULX in nearby galaxies with the goal to understand their X-ray spectra and to test current ideas of accretion physics in ULX.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-04-30T11:26:56Z/2003-09-11T12:13:52Z
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 2004-10-09T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-10-09T00:00:00Z, 015065, 17.56_20190403_1200. https://doi.org/10.5270/esa-dp5d79e