A dataset provided by the European Space Agency

Name 011245
Title EPIC Observations of Anomalous X-ray Pulsars


DOI https://doi.org/10.5270/esa-xw5vxry
Author Dr Martin Turner
Description GT- HD49798 is a sdO6 star in a spectroscopic binary with orbital period 1.55 days. In X-rays it has a very soft spectrum and a periodicity at 13 s, indicating that the companion is a magnetized compact object. The proposed observation will allow to measure the period evolution (and thus distinguish between a ns and a wd) and to confirm the NIV absorption edge suggested by ROSAT results. NOTE FOR THE PLANNING: 3 pointings of 5 ksec each are required, in order to cover different phases of the 1.55 day orbit. The choice in the time constraints form (repeat every 11 hours) is just a possibility: such a tight constraint on the spacing is not required, as far as different phases are sampled.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2002-05-03T11:01:25Z/2002-09-17T17:17:52Z
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 2004-08-06T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-08-06T00:00:00Z, 011245, 17.56_20190403_1200. https://doi.org/10.5270/esa-xw5vxry