|Title||Securing the Detection of the Hot Roaming Baryons with the XMM-Newton|
|Author||Dr Fabrizio Nicastro|
|Description||We propose a 1.6 Ms XMM-Newton ''Very Large Program.. to settle unambiguously one of the most controversial and open problems of modern astrophysics: the existence of the "missing baryons" in a WHIM. We will do so by complementing the first successful exploratory LETG observation of the z>0.4 blazar 1ES~1553+113, with additional 1.6 Ms of XMM-Newton RGS time, so more than doubling the S-N and thus the absorption line equivalent width sensitivity of the currently available LETG spectrum in the fundamental spectral region of the intervening oxygen. The proposed observation will enable:(1) the solution to the missing-baryon problem; (2) a robust estimate of the WHIM metallicity; (3) pioneering studiesof thermo- and chemo-dynamics of the IGM with cosmic time and so of the diffuse-gas-galaxies interplay.|
|Publication||Synchrotron emission from the blazar PG 1553+113. An analysis of its flux and polarization variability . Raiteri, C. M., Nicastro, F., et all. . MNRAS . 466-3762 . 2017 . 2017MNRAS.466.3762R ,
Missing matter found in the cosmic web . Fang, Taotao, . Natur . 558-375 . 2018 . 2018Natur.558..375F ,
Observations of the missing baryons in the warm-hot intergalactic medium . Nicastro, F., Kaastra, J., et all. . Natur . 558-406 . 2018 . 2018Natur.558..406N ,
A decade of warm hot intergalactic medium searches: Where do we stand and where do we go? . Nicastro, F., Krongold, Y., et all. . AN . 338-281 . 2017 . 2017AN....338..281N ,
X-ray spectral variability of blazars using principal component analysis . Gallant, D., Gallo, L. C., . MNRAS . 480-1999 . 2018 . 2018MNRAS.480.1999G ,
Discovery of a Very Hot Phase of the Milky Way Circumgalactic Medium with Non-solar Abundance Ratios . Das, Sanskriti, Mathur, Smita, et all. . ApJ . 882-23 . 2019 . 2019ApJ...882L..23D ,
Multiple Temperature Components of the Hot Circumgalactic Medium of the Milky Way . Das, Sanskriti, Mathur, Smita, et all. . ApJ . 887-257 . 2019 . 2019ApJ...887..257D ,
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2015-09-07T22:00:00Z, 076110, 17.56_20190403_1200. https://doi.org/10.5270/esa-s15kaot|