A dataset provided by the European Space Agency

Proposal ID 040508
Title Probing the X-ray nature of soft-spectrum Ultra-luminous X-ray sources
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DOI https://doi.org/10.5270/esa-msjr3ot
Principal Investigator, PI Dr Kajal Ghosh
Abstract We propose observations of the nearby galaxies NGC 5055, NGC 1316, and NGC 1407.Each of these galaxies hosts Ultra-Luminous X-ray sources (ULXs) with softspectra (power law spectral indices > 3 or, equivalently, optically-thin plasmatemperatures < 2 keV). The high throughput and broad bandpass of XMM-Newtonwill be able to distinguish between competing models for soft spectra ULXphenomena including ultra-soft accretion disk components in intermediate-massblack holes, emission-line supernova plasma, super-soft sources, and soft X-raytransients.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2006-12-07T17:36:56Z/2007-06-19T14:45:26Z
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 2008-09-27T00:00:00Z
Keywords "ngc 1316", "XMM", "xmm newton", "ngc 1407", "broad bandpass", "NGC 5055", "XMM-Newton", "soft xray transients", "super soft sources"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Kajal Ghosh, 2008, 'Probing the X-ray nature of soft-spectrum Ultra-luminous X-ray sources', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-msjr3ot