Proposal ID | 041339 |
Title | From Super-Eddington to zero: following a Z source into quiescence |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0413390101 |
DOI | https://doi.org/10.5270/esa-zfald6i |
Principal Investigator, PI | Dr Jeroen Homan |
Abstract | XTE J1701-462 is likely the most luminous Galactic transient neutron star LMXB(NSXB) in the history of X-ray astronomy. Early observations have alreadychallenged our view on the role of mass accretion rate in NSXBs. Observing XTEJ1701-462 as it returns to quiescence creates a unique opportunity to study theeffects of mass-accretion rate on the spectral/variability properties in asingle NSXB over an unprecedented luminosity range. We propose aChandra/XMM-Newton TOO program with two goals: 1) observe the source during theend of the decay and in quiescence, to complete what might well become aRosetta stone for NSXBs and 2) constrain the structure of neutron stars bystudying the effects of super- Eddington accretion on the cooling of the crust/core in transient NSXBs. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2007-08-26T00:36:33Z/2007-09-28T14:29:42Z |
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 | 2008-11-09T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "variability properties", "xte j1701 462", "neutron stars", "single nsxb", "transient nsxbs", "xmm newton", "super eddington", "mass accretion rate", "XMM-Newton", "xray astronomy", "luminosity range", "z source", "rosetta stone", "super eddington accretion", "XMM", "quiescence creates" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Jeroen Homan, 2008, 'From Super-Eddington to zero: following a Z source into quiescence', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-zfald6i |