A dataset provided by the European Space Agency

Name 069279
Title The first broadband study of a NS transient in quiescence with XMM and NuSTAR
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0692790201
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0692790301

DOI 10.5270/esa-9498alm
Author Dr John Tomsick
Description 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 thermal emission from the NS surface and is reasonably well-understood, while the other is a hard (often very hard) power-law of unknown origin. The upcoming NuSTAR mission will provide the first measurement of the >10 keV spectrum of quiescent NS LMXBs, which, along with XMM-Newton observations, will allow us to discriminate between accretion and pulsar rotation as the energy source for the power-law component. We propose coordinated XMM-Newton-NuSTAR observations of the closest and brightest quiescent system, Cen X-4.
Publication A Hard X-Ray Power-law Spectral Cutoff in Centaurus X-4 . Chakrabarty, Deepto, Tomsick, John A., et all. . ApJ . 797-92 . 2014 . 2014ApJ...797...92C ,
The radiative efficiency of a radiatively inefficient accretion flow . D.Angelo, C. R., Fridriksson, J. K., et all. . MNRAS . 449-2803 . 2015 . 2015MNRAS.449.2803D ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton . Svoboda, J., Guainazzi, M., . A&A . 603-127 . 2017 . 2017A&A...603A.127S ,
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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2014-02-20T00:00:00Z, 069279, 17.56_20190403_1200. https://doi.org/10.5270/esa-9498alm