A dataset provided by the European Space Agency

Name 069007
Title Spectral and temporal variations of the X-ray pulsar RX J0720.4-3125
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0690070201

DOI 10.5270/esa-lt9e5e3
Author Dr Markus Hohle
Description RX J0720.4-3125 (RX J0720) belongs to a group of seven isolated and radio-quiet X-ray pulsars discovered during the ROSAT all sky survey; the so called ''Magnificent Seven" (M7). Among them, RX J0720 occupies an unique place inasmuch it exhibits spectral and temporal variations on time scales of years that are not seen for the other M7. These variations could be the result of a sudden event (e.g. a glitch), or they are periodic in nature, e.g. caused by free precession. In either case one expects to see further spectral-temporal evolution. Recent XMM-Newton data (rev. 2076 and 2087) could better fit to a glitch, both from the spectral and the temporal behaviour. However, the variable phase lag between soft (120-400eV) and hard (400-1000eV) X-rays [abridge]
Publication Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
Discovery of a Strongly Phase-variable Spectral Feature in the Isolated Neutron Star RX J0720.4-3125 . Borghese, A., Rea, N., et all. . ApJ . 807-20 . 2015 . 2015ApJ...807L..20B ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
The compactness of the isolated neutron star RX J0720.4-3125 . Hambaryan, V., Suleimanov, V., et all. . A&A . 601-108 . 2017 . 2017A&A...601A.108H ,
Universal detection of high-temperature emission in X-ray isolated neutron stars . Yoneyama, Tomokage, Hayashida, Kiyoshi, et all. . PASJ . 71-17 . 2019 . 2019PASJ...71...17Y ,
Hard X-Ray Excess from the Magnificent Seven Neutron Stars . Dessert, Christopher, Foster, Joshua W., . ApJ . 904-42 . 2020 . 2020ApJ...904...42D ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-09-18T08:30:42Z/2012-09-18T15:59:19Z
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 2013-10-09T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-10-09T00:00:00Z, 069007, 17.56_20190403_1200. https://doi.org/10.5270/esa-lt9e5e3