| Proposal ID | 074395 |
| Title | Study of the remarkable X-ray variability of PSR B0943+10 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0743950101 |
| DOI | https://doi.org/10.5270/esa-li5aihy |
| Principal Investigator, PI | Dr SANDRO MEREGHETTI |
| Abstract | PSR B0943+10 is the best studied mode-switching radio pulsar. Its radio emissionalternates between a highly organised state with regular drifting subpulses (Bmode) and a chaotic emission pattern (Q mode). XMM-Newton observations showedremarkable X-ray variability correlated with the radio mode: during the fainterradio state the X-ray flux is more than twice larger than during the B-mode andX-ray pulsations are detected. Due to the limited spectral information it is notpossible to discriminate between interpretations with very different physicalimplications for possible global changes in the magnetosphere. We propose alarge program with coordinated radio observations on this unique target to gaininsight into the pulsar emission mechanism expoiting the new diagnostic of X-ray variability. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2014-10-31T22:58:40Z/2014-11-27T20:12:59Z |
| 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 | 2015-12-23T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "twice larger", "xray variability correlated", "regular drifting subpulses", "psr b0943", "fainter radio", "coordinated radio", "xmm newton", "physical implications", "gain insight", "radio mode", "XMM-Newton", "xray pulsations", "xray flux", "XMM", "xray variability", "chaotic emission pattern", "radio emission alternates", "limited spectral information" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr SANDRO MEREGHETTI, 2015, 'Study of the remarkable X-ray variability of PSR B0943+10', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-li5aihy |