| Proposal ID | 051101 |
| Title | Chandra observations of an engimatic class of faint accreting slow pulsators |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0511010101 |
| DOI | https://doi.org/10.5270/esa-ocwbl53 |
| Principal Investigator, PI | Dr Rudy Wijnands |
| Abstract | We propose a series of 1 ksec Chandra observations of an enigmatic class ofobjects: faint to very faint accreting slow pulsators with period greater thanseveral hundreds of seconds. The nature of these objects is unclear; likely theyare neutron stars accreting from a high-mass companion star, but often anaccreting magnetized white dwarf nature (i.e., an intermediate polar) cannot beexcluded. With our proposed Chandra observations we will obtain a position ofthese sources which will be used to identify their optical/IR counterpart,crucial in determining the exact nature of these systems. In addition, werequest short (5 ksec) XMM-Newton observations of the same targets which willresult in good spectra and allow for searches to be undertaken for any spin-period derivatives. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2007-09-30T07:02:09Z/2008-03-04T17:49:46Z |
| 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 | 2009-04-02T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "mass companion star", "neutron stars accreting", "engimatic class", "xmm newton", "ir counterpart", "XMM-Newton", "intermediate polar", "XMM", "spin period derivatives", "enigmatic class" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Rudy Wijnands, 2009, 'Chandra observations of an engimatic class of faint accreting slow pulsators', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ocwbl53 |