A dataset provided by the European Space Agency

Name 065487
Title Pulse-phase spectroscopy of the anomalous X-ray pulsar 1E 1048.1-5937 in a low
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0654870101

DOI 10.5270/esa-3slcx5g
Author Dr Andrea Tiengo
Description 1E 1048.1-5937 is the magnetar candidate with the largest pulsed fraction, that is observed to be anti-correlated to the source flux. At the lowest flux level, the 1-10 keV pulsed fraction is >90% and a soft X-ray spectral component, possibly due to thermal emission from most of the magnetar surface, emerges at pulse-phase minimum. This source state provides the best opportunity to study through phase-resolved spectroscopy both the non-thermal and thermal emission from regions of the magnetar surface at different temperatures. Since the only available observation of 1E 1048.1-5937 in this low flux state is a 5 ks XMM-Newton observation, we propose a deeper 80 ks observation, to be performed in case the 2-10 keV flux falls below 4E-12 erg cm-2 s-1.
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 ,
Mapping the Surface of the Magnetar 1E 1048.1-5937 in Outburst and Quiescence through Phase-resolved X-Ray Spectroscopy . Guver, Tolga, Gogus, Ersin, . ApJ . 801-48 . 2015 . 2015ApJ...801...48G ,
The Short Bursts in SGR-1806 20, 1E 1048-5937, and SGR 0501+4516 . Qu, Zhijie, Li, Zhaosheng, et all. . PASP . 127-211 . 2015 . 2015PASP..127..211Q ,
X-Ray Perspective of the Twisted Magnetospheres of Magnetars . Weng, Shan-Shan, Gogus, Ersin, et all. . ApJ . 805-81 . 2015 . 2015ApJ...805...81W ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Galactic Sources Detected in the NuSTAR Serendipitous Survey . Tomsick, John A., Lansbury, George B., et all. . ApJS . 230-25 . 2017 . 2017ApJS..230...25T ,
Systematic study of magnetar outbursts . Coti Zelati, Francesco, Rea, Nanda, et all. . MNRAS . 474-961 . 2018 . 2018MNRAS.474..961C ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2011-08-06T01:17:27Z/2011-08-07T04:12:44Z
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 2012-09-10T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-09-10T00:00:00Z, 065487, 17.56_20190403_1200. https://doi.org/10.5270/esa-3slcx5g