A dataset provided by the European Space Agency

Proposal ID 020558
Title X1658-298: UNVEILING THE EMISSION MECHANISM(S) OF QUIESCENT SOFT X-RAY TRANSIENT
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0205580201

DOI https://doi.org/10.5270/esa-e2huyri
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 subjectto low mass inflow rates: a) the accretion regime; b) the propeller regime; c)the radio pulsar regime. The emission location and spectrum should be: close tothe neutron star and soft in cases a) and b); from an extended shock andpower-law like in case c). Additional soft emission may originate from neutronstar cooling. We propose an 80 ks observation of the eclipsing system X1658-298,covering 3 orbits. This will yield the source quiescent spectrum and exploit theX-ray eclipses to determine where the emission components originate. OnlyXMM-Newton has the sensitivity and throughput to carry out this study.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-03-19T12:05:27Z/2005-03-20T04:30:39Z
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 2006-07-08T00:00:00Z
Keywords "neutron star", "power law", "quiescent emission", "XMM-Newton", "emission location", "xmm newton", "neutron star cooling", "additional soft emission", "emission components", "x1658 298", "X1658-298", "fast spinning", "XMM", "emission mechanisms", "propeller regime", "xray eclipses", "accretion regime", "source quiescent spectrum", "radio pulsar regime"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof LUIGI STELLA, 2006, 'X1658-298: UNVEILING THE EMISSION MECHANISMopenParSclosePar OF QUIESCENT SOFT X-RAY TRANSIENT', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-e2huyri