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 |
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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 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 | 2025-01-27 |
Keywords | "anti correlated", "thermal emission", "pulse phase spectroscopy", "pulse phase minimum", "xmm newton", "1e 1048", "XMM-Newton", "magnetar candidate", "erg cm", "kev flux falls", "source flux", "phase resolved spectroscopy", "XMM", "kev pulsed fraction", "lowest flux level", "low flux", "magnetar surface", "largest pulsed fraction" |
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', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3slcx5g |