A dataset provided by the European Space Agency

Name 072449
Title Probing the inner disk origin of the iron line in SAX J1808.4 3658


DOI https://doi.org/10.5270/esa-3omrjqt
Author Dr Tiziana Di Salvo
Description We propose a 100-ks triggered XMM observation of the accreting millisecond pulsar J1808 in its next outburst to gather strong evidence of the inner disk origin of its broad iron emission line and to perform spin and orbital timing. The accretion disk during short-outburst transients is expected to be truncated both at the inner radius (by the neutron star magnetosphere) and at an outer radius of a few hundreds Gravitational radii because the disk is rapidly emptying. The ring-like shape of the disk will produce a clear double-peaked line profile, unique signature of the disk origin of the line. The clear detection of this profile by XMM will give the ultimate proof of the disk origin of the Fe line. This is a re-submission of a proposal approved in priority C for the XMM AO10.
Publication No observations found associated with the current proposal
Instrument EPN, OM, RGS1, RGS2
Temporal Coverage 2015-04-11T03:01:49Z/2015-04-12T09:18:29Z
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 2016-05-06T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2016-05-06T22:00:00Z, 072449, 17.56_20190403_1200. https://doi.org/10.5270/esa-3omrjqt