A dataset provided by the European Space Agency

Name 065064
Title Slow pulsating accreting neutron stars: the enigmatic case of 4U 2206+54
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0650640101

DOI 10.5270/esa-n40j0hw
Author Dr PABLO REIG
Description The discovery of pulsations (Pspin=5500s) has solved the controversy on the nature of the compact object in the HMXB 4U2206+54 but has prompted new questions. According to spin evolutionary models such slow pulsations require the system to harbor a magnetar (B~1e14 G). However, the significant detection of a cyclotron resonant scattering feature at 30 keV implies a magnetic field B~3x1e12 G. Another unsolved question is whether the presence of a soft thermal component, representing emission from the polar caps, is present in all accreting pulsars. This proposal seeks to estimate the magnetic field strength through the neutron star spin evolution and investigate with unprecedented detail the soft energy spectrum of 4U2206+54 to check whether the polar cap scenario is applicable.
Publication Accreting magnetars: a new type of high-mass X-ray binaries? . Reig, P., Torrejon, J. M., . MNRAS . 425-595 . 2012 . 2012MNRAS.425..595R ,
An XMM-Newton view of FeKalpha in high-mass X-ray binaries . Gimenez-Garcia, A., Torrejon, J. M., et all. . A&A . 576-108 . 2015 . 2015A&A...576A.108G ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
NuSTAR rules out a cyclotron line in the accreting magnetar candidate 4U2206+54 . Torrejon, J. M., Reig, P., et all. . MNRAS . 479-3366 . 2018 . 2018MNRAS.479.3366T ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2011-02-06T03:39:49Z/2011-02-07T02:40:52Z
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 2012-03-04T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-03-04T00:00:00Z, 065064, 17.56_20190403_1200. https://doi.org/10.5270/esa-n40j0hw