A dataset provided by the European Space Agency

Proposal ID 015065
Title Towards Understanding Ultraluminous X-ray Sources in Nearby Galaxies
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0150651101
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DOI https://doi.org/10.5270/esa-dp5d79e
Principal Investigator, PI Dr Manfred Pakull
Abstract One of the unsolved questions in contemporary astrophysics is the nature of thebright non-nuclear X-ray sources which appear to surpass by large margins theEddington luminosity of a stellar-mass compact object. We have recentlydiscovered extended emission nebulae around several ultraluminous sources (ULX)in nearby galaxies which are partly photoionized by their XUV radiation; extentand expansion velocity suggest that these ULX were formed in energetic eventssome 1E6 years ago. Here we propose to observe a sample of bright ULX in nearbygalaxies with the goal to understand their X-ray spectra and to test currentideas of accretion physics in ULX.
Publications
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 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 2004-10-09T00:00:00Z
Keywords "bright ulx", "accretion physics", "energetic events", "expansion velocity", "eddington luminosity", "emission nebulae", "stellar mass", "nearby galaxy", "xuv radiation", "ultraluminous xray sources", "partly photoionized", "contemporary astrophysics", "compact object", "xray spectra", "ultraluminous sources ulx", "nuclear xray sources"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Manfred Pakull, 2004, 'Towards Understanding Ultraluminous X-ray Sources in Nearby Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-dp5d79e