A dataset provided by the European Space Agency

Name 055127
Title A relativistic iron line in the X-ray spectrum of the atoll source 4U 1705-44?


DOI https://doi.org/10.5270/esa-p4chn93
Author Dr Tiziana Di Salvo
Description We propose a ToO (triggered) observation with XMM-Newton of the atoll source 4U 1705-44 during a soft state. A Chandra observation of this source clearly indicate the presence of a broad (sigma virgul 0.7 keV) iron line. Both a relativistic disc line and a thermal Comptonization broadening fit well the line profile. The superior sensitivity at the iron line energy of XMM-Newton is needed to give a definite answer to the problem of the origin of the broad iron line.
Publication No observations found associated with the current proposal
Instrument EMOS1, EPN, OM, RGS1, RGS2
Temporal Coverage 2008-08-24T01:59:59Z/2008-08-24T17:14:51Z
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 2009-10-01T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009, 055127, 17.56_20190403_1200. https://doi.org/10.5270/esa-p4chn93