A dataset provided by the European Space Agency

Proposal ID 072264
Title Continuing the Ephemeris of the CCO Pulsar in Puppis A
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0722640301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0722640401

DOI https://doi.org/10.5270/esa-ndq90vn
Principal Investigator, PI Dr Eric Gotthelf
Abstract We detected spin-down of the pulsar in Puppis A, which requires a dipolemagnetic field of only 2.9e10 G, the smallest of any young neutron star. Thisconfirms the anti-magnetar scenario, but there is possibly some phase jitter inthe ephemeris. We also detected an X-ray spectral feature that is either anemission line at virgul0.7 keV or an absorption line at virgul0.46 keV, which isconsistent with a photospheric cyclotron resonance. However, its strength isapparently variable in time. We propose to double the time span of the ephemeristo confirm the spin-down rate and test for torque noise and any spectralvariability, which could be indicative of accretion of supernova debris.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2013-10-29T16:09:22Z/2013-11-01T09:19:56Z
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 2014-11-26T00:00:00Z
Keywords "absorption line", "torque noise", "neutron star", "xray spectral", "photospheric cyclotron resonance", "supernova debris", "anti magnetar scenario", "spectral variability", "emission line", "apparently variable", "phase jitter", "dipole magnetic field", "time span", "cco pulsar"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Eric Gotthelf, 2014, 'Continuing the Ephemeris of the CCO Pulsar in Puppis A', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ndq90vn