| Proposal ID | 050529 |
| Title | The transient bursting Anomalous X-ray Pulsar in Westelund 1 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505290201 |
| DOI | https://doi.org/10.5270/esa-5n72v96 |
| Principal Investigator, PI | Dr GianLuca Israel |
| Abstract | On 21st September 2006 an intense (10^40 erg/s) and short (20ms) burst wasdetected by the Swift BAT at a position consistent with that of the candidateanomalous X-ray Pulsar CXO J1647-4552, discovered by Chandra in 2005. Swiftfollow-up observations requested by our group began after only few hours fromthe event and found the source at a flux level of about 6x10^-11 erg/scm^2, morethan 200 times brighter than the flux measured in 2005. Both the spectral andtiming properties of CXO J1647-4552 are drastically different from those of thepre-burst observations. These findings proved unambiguously that CXO J1647-4552is indeed an AXP. The present proposal is aimed at following the evolution ofthe main parameters of the second confirmed bursting transient AXP. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2007-08-19T09:20:51Z/2008-02-15T16:01:28Z |
| 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 | 2009-03-10T00:00:00Z |
| Keywords | "flux level", "cxo j1647 4552", "bursting transient axp", "pre burst", "21st september 2006", "main parameters", "short 20ms burst", "swift bat", "findings proved unambiguously" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr GianLuca Israel, 2009, 'The transient bursting Anomalous X-ray Pulsar in Westelund 1', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5n72v96 |