A dataset provided by the European Space Agency

Name 060117
Title RX J0720 evolution: precession, glitching, or the last flutterings of a magnetar
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0601170301

DOI https://doi.org/10.5270/esa-cvbv9x3
Author European Space Agency
Description RX J0720 belongs to a group of seven radio-quiet isolated neutron stars with
similar properties. It is unique in that it shows long term variations in its
spectral parameters, like black body temperature, size of the emitting area and
the depth of the absorption feature. Furthermore, a phase coherent pulse timing
analysis assuming a constant spin period derivative shows large timing
residuals. The cause of this enigmatic behaviour is still a matter of debate:
cyclic variations are expected if the neutron star precesses while a sudden
event like a glitch may cause a gradual evolution after a relatively fast
change. The recent results from our XMM-Newton observations indicate that the
timing residuals follow an abs(sine) behaviour with the minimum expected around next year.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2009-09-22T04:27:35Z/2009-09-22T13:01:38Z
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 2010-10-01T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010, Rx J0720 Evolution: Precession Comma Glitching Comma Or The Last Flutterings Of A Magnetar, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-cvbv9x3