Proposal ID | 015319 |
Title | X1658-298: unveiling the emission mechanism(s) of quiescent X-ray transients |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0153190101 |
DOI | https://doi.org/10.5270/esa-sqeooc3 |
Principal Investigator, PI | Prof Luigi Stella |
Abstract | Different mechanisms may power the quiescent emission of soft X-ray transients, impacting on the physics of fast spinning, weakly magnetic neutron stars subject to low mass inflow rates: a. the accretion regime; b. the propellerregime c. the radio pulsar regime. The emission location and spectrum should be: close to the neutron star and soft in cases a. and b.; from an extendedshock and power-law like in case c. Additional soft emission may originate fromneutron star cooling. We propose an 80 ks observation of the eclipsing systemX1658-298, covering 3 orbits. This will yield the source quiescent spectrum and exploit the X-ray eclipses to determine where the emission components originate. Only XMM has the sensitivity and throughput to carry out this study. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2003-03-13T14:39:52Z/2003-03-14T13:45:59Z |
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 | 2004-04-05T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "neutron star", "power law", "source quiescent spectrum", "emission mechanisms", "emission components", "accretion regime", "neutron star cooling", "radio pulsar regime", "propeller regime", "X1658-298", "fast spinning", "emission location", "xray eclipses", "soft xray transients", "x1658 298", "quiescent emission", "additional soft emission", "quiescent xray transients", "XMM" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Prof Luigi Stella, 2004, 'X1658-298: unveiling the emission mechanism(s) of quiescent X-ray transients', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-sqeooc3 |