GT- GT0236+610 is an X-ray/radio/ (and possibly gamma-ray) source with uniqueproperties, associated to the Be star LSI+61 303 and characterized by strong nonthermal outbursts occurring with a periodicity of 26.5 days. The proposedobservation with 4 snapshots at different orbital phases will allow todiscriminate between the two alternative models of shock emission andsupercritical accretion.NOTE FOR THE PLANNING: 4 pointings of 5 ksec each are required, in order tocover different phases of the 26.5 day orbit. The choice in the time constraintsform (repeat every 3 orbits) is just a possibility: such a tight constraint on the spacing is not required, as far as different phases are sampled.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2002-02-05T01:44:18Z/2002-09-16T04:11:28Z
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.
European Space Agency, Dr Martin Turner, 2003, 'EPIC Observations of the X-ray and Radio Source LS I +61d303 / GT 0236+610', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-x0svyad
