A dataset provided by the European Space Agency

Name 020223


DOI 10.5270/esa-63pxg4n
Description A Z-source candidate has been identified in the core of M31 using data from existing XMM-Newton observations. Z-sources are perhaps the most extreme form of neutron star binary; powered by Roche lobe overflow from a low mass secondary via disc accretion, their X-ray luminosities can reach 10^39 erg-s,and exhibit complex correlations between luminosity and X-ray spectra so thatthey trace out Z-shapes in colour-colour diagrams over a few days. We propose a programme of four 20 ks observations over 4 days to trace the Z-track, which will conclusively prove whether or not the candidate is a Z-source. Also, the programme would access for the first time variability over time-scales of a few days in the 120 sources in the field of view.
Publication X-ray monitoring of optical novae in M 31 from July 2004 to February 2005 . Pietsch, W., Haberl, F., et all. . A&A . 465-375 . 2007 . 2007A&A...465..375P ,
X-ray monitoring of classical novae in the central region of M 31. I. June 2006-March 2007 . Henze, M., Pietsch, W., et all. . A&A . 523-89 . 2010 . 2010A&A...523A..89H ,
Unresolved X-ray emission in M31 and constraints on progenitors of classical novae . Bogdan, A., Gilfanov, M., . MNRAS . 405-209 . 2010 . 2010MNRAS.405..209B ,
The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue . Watson, M. G., Schroder, A. C., et all. . A&A . 493-339 . 2009 . 2009A&A...493..339W ,
Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras . Mateos, S., Saxton, R. D., et all. . A&A . 496-879 . 2009 . 2009A&A...496..879M ,
The XMM Cluster Survey: optical analysis methodology and the first data release . Mehrtens, Nicola, Romer, A. Kathy, et all. . MNRAS . 423-1024 . 2012 . 2012MNRAS.423.1024M ,
Disc precession in the M31 dipping X-ray binary Bo 158? . Barnard, R., Foulkes, S. B., et all. . MNRAS . 366-287 . 2006 . 2006MNRAS.366..287B ,
A Census of the Supersoft X-ray Sources in M31 . Orio, Marina, Nelson, Thomas, et all. . ApJ . 717-739 . 2010 . 2010ApJ...717..739O ,
The deep XMM-...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-07-16T16:17:05Z/2004-07-19T20:23:32Z
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 2005-08-19T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2005-08-19T00:00:00Z, 020223, 17.56_20190403_1200. https://doi.org/10.5270/esa-63pxg4n