Proposal ID | 069279 |
Title | The first broadband study of a NS transient in quiescence with XMM and NuSTAR |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0692790201 |
DOI | https://doi.org/10.5270/esa-9498alm |
Principal Investigator, PI | Dr John Tomsick |
Abstract | In quiescence, the soft X-ray spectra of neutron star (NS) Low-Mass X-ray Binary(LMXB) transients most often contain two components: one is due to thermalemission from the NS surface and is reasonably well-understood, while the otheris a hard (often very hard) power-law of unknown origin. The upcoming NuSTARmission will provide the first measurement of the >10 keV spectrum of quiescentNS LMXBs, which, along with XMM-Newton observations, will allow us todiscriminate between accretion and pulsar rotation as the energy source for thepower-law component. We propose coordinated XMM-Newton/NuSTAR observations ofthe closest and brightest quiescent system, Cen X-4. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2013-01-21T11:43:58Z/2013-01-21T22:47:50Z |
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 | 2014-02-20T00:00:00Z |
Last Update | 2025-08-04 |
Keywords | "XMM", "nustar mission", "XMM-Newton", "NuSTAR", "soft xray spectra", "ns surface", "pulsar rotation", "kev spectrum", "quiescent ns lmxbs", "brightest quiescent system", "xmm newton", "coordinated xmm newton", "thermal emission", "cen x", "energy source", "hard power law", "ns transient", "power law component" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr John Tomsick, 2014, 'The first broadband study of a NS transient in quiescence with XMM and NuSTAR', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-9498alm |