A dataset provided by the European Space Agency

Proposal ID 015319
Title X1658-298: unveiling the emission mechanism(s) of quiescent X-ray transients
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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
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