| Proposal ID | 030741 |
| Title | A search for optical pulsations in the Anomalous X-ray Pulsar 1E 1048.1-5937 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0307410201 |
| DOI | https://doi.org/10.5270/esa-1q8k6c0 |
| Principal Investigator, PI | Dr V. Dhillon |
| Abstract | The nature of anomalous X-ray pulsars (AXPs) is one of the most importantunsolved problems in Galactic high-energy astrophysics. AXPs are spinning-downpulsars with a soft X-ray spectrum, apparently not powered by accretion from acompanion star, and with a luminosity larger than the available rotationalenergy loss of a neutron star. Two main models have been proposed to explaintheir behaviour: accretion from a residual disc or strong magnetic fields (i.e.magnetars). The aim of this proposal is to measure the optical pulsed fractionand broad-band spectrum using ULTRACAM+VLT and XMM, thereby placing the magnetarmodel of AXPs on a sound observational footing. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-06-16T17:24:34Z/2005-06-28T14:42:39Z |
| 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 | 2006-08-03T00:00:00Z |
| Keywords | "optical pulsed fraction", "residual disc", "rotational energy loss", "main models", "broad band spectrum", "XMM", "magnetar model", "magnetic fields", "neutron star", "soft xray spectrum", "luminosity larger", "thereby placing", "optical pulsations", "companion star", "energy astrophysics" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr V. Dhillon, 2006, 'A search for optical pulsations in the Anomalous X-ray Pulsar 1E 1048.1-5937', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1q8k6c0 |