Proposal ID | 040508 |
Title | Probing the X-ray nature of soft-spectrum Ultra-luminous X-ray sources |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0405080101 |
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 |
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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 |
Last Update | 2025-01-27 |
Keywords | "super soft sources", "NGC 5055", "ngc 1407", "xmm newton", "ngc 1316", "XMM-Newton", "broad bandpass", "XMM", "soft xray transients" |
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 |