A dataset provided by the European Space Agency

Name 065257
Title Detecting the Warm-Hot Intergalactic Medium in the Hercules Supercluster


DOI 10.5270/esa-15hhqx2
Author Dr Taotao Fang
Description The "Missing Baryons", in the form of the Warm-Hot Intergalactic Medium (WHIM), represent a fundamental challenge to the current theory, and a detection of the WHIM in X-ray that is generally accepted has remained elusive. Recently, our joint Chandra and XMM observations revealed a WHIM absorption produced by a known large-scale structure (Sculptor Wall) at high significance (4.2-sigma), demonstrating that superstructures are probably the best locations to detect the WHIM. To assess whether this result is typical, we propose an observation of Mkn 501, a blazar located behind the Hercules Supercluster. The combination of the strong flux and the foreground superstructure makes Mkn 501 the most promising target, with a relatively low expense of telescope time (150~ks).
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Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
XMM-Newton publication statistics . Ness, J.-U., Parmar, A. N., et all. . AN . 335-210 . 2014 . 2014AN....335..210N ,
Diffuse low-ionization gas in the galactic halo casts doubts on z ~= 0.03 WHIM detections . Nicastro, F., Senatore, F., et all. . MNRAS . 458-123 . 2016 . 2016MNRAS.458L.123N ,
The Rotation of the Hot Gas around the Milky Way . Hodges-Kluck, Edmund J., Miller, Matthew J., . ApJ . 822-21 . 2016 . 2016ApJ...822...21H ,
Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function . Vagnetti, F., Middei, R., et all. . A&A . 593-55 . 2016 . 2016A&A...593A..55V ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Dependence of the broad Fe Kalpha line on the physical parameters of AGN . Liu, Zhu, Yuan, Weimin, et all. . MNRAS . 463-684 . 2016 . 2016MNRAS.463..684L ,
AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton . Svoboda, J., Guainazzi...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2010-09-08T23:50:27Z/2011-02-16T01:37:04Z
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 2012-03-19T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-03-19T00:00:00Z, 065257, 17.56_20190403_1200. https://doi.org/10.5270/esa-15hhqx2