A dataset provided by the European Space Agency

Name: Pulse-phase spectroscopy of the anomalous X-ray pulsar 1E 1048.1-5937 in a low
Published: 2012-09-10T00:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	065487
Title	Pulse-phase spectroscopy of the anomalous X-ray pulsar 1E 1048.1-5937 in a low
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0654870101
DOI	https://doi.org/10.5270/esa-3slcx5g
Principal Investigator, PI	Dr Andrea Tiengo
Abstract	1E 1048.1-5937 is the magnetar candidate with the largest pulsed fraction, thatis 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 atpulse-phase minimum. This source state provides the best opportunity to studythrough phase-resolved spectroscopy both the non-thermal and thermal emissionfrom regions of the magnetar surface at different temperatures. Since the onlyavailable observation of 1E 1048.1-5937 in this low flux state is a 5 ksXMM-Newton observation, we propose a deeper 80 ks observation, to be performedin case the 2-10 keV flux falls below 4E-12 erg cm-2 s-1.
Publications	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 \| http://ui.adsabs.harvard.edu/#abs/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 \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...801...48G The Short Bursts in SGR-1806 20 1E 1048-5937 and SGR 0501+4516 \|Qu Zhijie Li Zhaosheng et al. \| PASP \| 127-211 \| 2015 \| 2015PASP..127..211Q \| http://ui.adsabs.harvard.edu/#abs/2015PASP..127..211Q X-Ray Perspective of the Twisted Magnetospheres of Magnetars \|Weng Shan-Shan Gogus Ersin et al. \| ApJ \| 805-81 \| 2015 \| 2015ApJ...805...81W \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...805...81W The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch Eric W. \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F Galactic Sources Detected in the NuSTAR Serendipitous Survey \|Tomsick John A. Lansbury George B. et al. \| ApJS \| 230-25 \| 2017 \| 2017ApJS..230...25T \| http://ui.adsabs.harvard.edu/#abs/2017ApJS..230...25T Systematic study of magnetar outbursts \|Coti Zelati Francesco Rea Nanda et al. \| MNRAS \| 474-961 \| 2018 \| 2018MNRAS.474..961C \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.474..961C Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez Antonio C. \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R Robust constraints on feebly interacting particles using XMM-Newton \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D New 511 keV Line Data Provide Strongest sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 973-L6 \| 2024 \| 2024ApJ...973L...6D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...973L...6D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2011-08-06T01:17:27Z/2011-08-07T04:12:44Z
Version	21.51_20241115_1113
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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
Last Update	2026-07-09
Keywords	"lowest flux level", "kev pulsed fraction", "XMM-Newton", "largest pulsed fraction", "magnetar candidate", "phase resolved spectroscopy", "kev flux falls", "magnetar surface", "anti correlated", "thermal emission", "XMM", "source flux", "1e 1048", "pulse phase spectroscopy", "low flux", "pulse phase minimum", "erg cm", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Andrea Tiengo, 2012, 'Pulse-phase spectroscopy of the anomalous X-ray pulsar 1E 1048.1-5937 in a low', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-3slcx5g
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.