A dataset provided by the European Space Agency

Name 078457
Title Probing the Warped Inner Accretion Flow in SMC X-1 with XMM and NuSTAR


DOI https://doi.org/10.5270/esa-xho7zkj
Author Prof Ryan Hickox
Description We propose for a series of four 20 ks observations with XMM and NuSTAR of the binary X-ray pulsar SMC X-1. This source shows a long-period (40 60 d) superorbital cycle due to a warped, precessing accretion disk. This disk is heated by the pulsed hard X-ray beam from the neutron star, and observations of this thermal emission can provide a unique probe of the inner accretion flow near the magnetosphere. However this requires sensitivity and timing resolution across the full X-ray band (from below 1 keV to above 20 keV), and sampling of a full superorbital cycle. We will take advantage of XMM.s excellent sensitivity and time resolution along with NuSTAR.s exquisite high-energy coverage to yield the clearest picture to date of the inner accretion flow.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2016-09-08T21:24:04Z/2016-10-25T03:03:14Z
Version 19.17_20220121_1250
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 2017-11-14T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2017-11-14T23:00:00Z, 078457, 19.17_20220121_1250. https://doi.org/10.5270/esa-xho7zkj