Proposal ID | 040230 |
Title | A relativistic iron line in the X-ray spectrum of the atoll source 4U 1705-44? |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0402300201 |
DOI | https://doi.org/10.5270/esa-i0ihdtn |
Principal Investigator, PI | Prof Giorgio Matt |
Abstract | We propose to observe with XMM-Newton in AO5 the atoll source 4U 1705-44. The Chandra observation of this source clearly indicates the presence of a broad(sigma about 0.7 keV) iron line. Both a relativistic disk line and a thermalComptonization broadening fit well the line profile. The superior sensitivity atthe iron line energy of XMM-Newton is needed to give a definite answer to theproblem of the origin of the broad iron line. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, RGS1, RGS2 |
Temporal Coverage | 2006-08-26T04:44:46Z/2006-08-26T17:29:38Z |
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 | 2007-09-25T00:00:00Z |
Keywords | "line profile", "superior sensitivity", "kev iron line", "XMM", "xray spectrum", "broad sigma", "iron line energy", "broad iron line", "relativistic disk line", "relativistic iron line", "XMM-Newton", "definite answer", "xmm newton" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Prof Giorgio Matt, 2007, 'A relativistic iron line in the X-ray spectrum of the atoll source 4U 1705-44questionMark', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-i0ihdtn |