A dataset provided by the European Space Agency

Proposal ID 020497
Title A MYSTERIOUS OBJECT AT THE CENTER OF THE SUPERNOVA REMNANTS KES 79
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204970201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204970301
DOI https://doi.org/10.5270/esa-atl9rw6
Principal Investigator, PI Prof FREDERICK SEWARD
Abstract We have made a tentative discovery of pulsations from an X-ray source at thecenter of the Galactic supernova remnant Kes 79. A pointed ROSAT PSPCobservation indicates a coherent period with marginal significance, limited onlyby counting statistics. We propose an EPIC-pn observation to confirm thisdetection and to obtain a second epoch pulse measurement to determine itsspin-down rate. This will allow critical pulsar parameters to be estimated. Ifthe ROSAT period is not confirmed, the request 2 X 21 ks exposures, separated bya week, are sufficient to search independently for the pulsar period and itsderivative. Identifying a pulsar at the center of Kes 79 and characterizing itsunusual properties have important consequences for neutron star evolution.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-10-18T00:02:56Z/2004-10-24T08:24:28Z
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 2005-12-03T00:00:00Z
Keywords "rosat period", "pulsar parameters", "neutron star evolution", "pulsar period", "xray source", "rosat pspc", "counting statistics", "epoch pulse measurement", "tentative discovery", "epic pn", "kes 79", "EPIC", "coherent period", "marginal significance", "ROSAT"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof FREDERICK SEWARD, 2005, 'A MYSTERIOUS OBJECT AT THE CENTER OF THE SUPERNOVA REMNANTS KES 79', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-atl9rw6