A dataset provided by the European Space Agency

Name 020159
Title THE ENIGMATIC SOURCE RX J1856.5-3754: IS IT A MILLISECOND PULSAR?
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0201590101

DOI 10.5270/esa-fqe230w
Author Dr VYACHESLAV ZAVLIN
Description The nature of RX J1856.5-3754, the famous nearby radio-silent compact object, remains unknown because its rotational period has not been detected. However, the numerous X-ray observations of this puzzling source have been sensitive to periods only above 20 ms. We argue that the observed X-ray and optical radiation of this source can be interpreted as thermal emission from peripheries of hot polar caps of a millisecond pulsar, whose nonthermal emission in radio and X-rays is not observable because of an unfavorable orientation of the radiation beams. To verify this hypothesis, we propose to observe this target with the EPIC-pn instrument operating in timing mode. The proposed observation will be sensitive to millisecond pulsations with a pulsed fraction as low as 3%.
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Classification of X-Ray Sources in the XMM-Newt...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-04-17T21:55:45Z/2004-04-18T16:23:15Z
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 2005-06-09T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2005-06-09T00:00:00Z, 020159, 17.56_20190403_1200. https://doi.org/10.5270/esa-fqe230w