Name | 030717 |
Title | The Eclipsing Binary Pulsar J1638-4725 |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0307170201 |
DOI | https://doi.org/10.5270/esa-vlqau4p |
Author | Dr Maura McLaughlin |
Description | PSR J1638-4725 is in a highly eccentric binary system with a 5-yr orbital period about a massive companion. The pulsar is undetectable in the radio for roughly 1 yr around periastron, most likely due to absorption and scattering by the dense stellar environment. During this radio-quiet phase, X-rays produced by propeller regime accretion of matter onto the neutron star magnetosphere are likely to be detectable. If such emission is detected, this binary will be the first system in which an accretion phase alternates with a radio pulsar phase. Observations of the X-ray emission close to periastron will provide an important diagnostic of the properties of the companion star and its wind. Such an opportunity will not be available for another 5 years. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2005-08-19T06:18:09Z/2005-08-20T09:56:27Z |
Version | 17.56_20190403_1200 |
Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2006-10-05T00:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Maura McLaughlin, 2006, 030717, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-vlqau4p |