Proposal ID | 072078 |
Title | Unveiling the nature of cyclic behavior in the period evolution of XTEJ1810-197 |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0720780201 |
DOI | https://doi.org/10.5270/esa-1crju52 |
Principal Investigator, PI | Dr Federico Bernardini |
Abstract | This program is aimed at obtaining a phase-coherent timing solution for theperiod evolution of XTEJ1810-197 (XTEJ), and at continuing the successful XMMmonitoring of this unique Anomalous X-ray Pulsar (AXP). AXPs are Magnetars,isolated neutron star (NS) whose emission is due to the decay of a superstrongmagnetic field, 10e+(14-15) G. The requested pointings are aimed at studying theperiod evolution of XTEJ with the goal of demonstrating the presence of a longterm (5yr) precession of its rotation axis. XTEJ could be a unique precessingMagnetar (only 3 candidate precessing NSs are known). This would shed light onthe physical properties of the NS crust/core core and on the physical propertiesof matter at extremely high density. We request two pointings to complete the monitoring campaign. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2013-09-05T19:45:54Z/2014-03-05T05:45:57Z |
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 | 2015-04-01T22:00:00Z |
Keywords | "period evolution", "xtej1810 197 xtej", "XMM", "shed light", "precessing magnetar", "ns crust", "rotation axis", "successful xmm", "physical properties", "xtej1810 197", "phase coherent", "superstrong magnetic field", "core core", "candidate precessing nss", "requested pointings", "term 5yr precession" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Federico Bernardini, 2015, 'Unveiling the nature of cyclic behavior in the period evolution of XTEJ1810-197', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1crju52 |