We propose a 80 ks ToO observation of a high-redshift (z>=3) blazar during agamma-ray flare detected by Fermi/LAT. So far, only 12 high-redshift blazarshave been detected in I?-rays. These objects are the most luminous and massiveobjects in the Universe, which allow to study the formation of active galacticnuclei in the early Universe. Because the high-energy hump of their SED peaks inthe MeV range, X-ray and gamma-ray data is needed to constrain the hump s shape.We propose to get high-sensitivity, simultaneous X-ray data during enhancedI?-ray activity of a blazar at high redshift. The data will be complemented bytriggered radio observations. The resulting multiwavelength data set will yieldimportant knowledge on the behaviour of flaring MeV blazars for future MeV telescopes.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2022-02-08T01:26:59Z/2022-02-09T02:54:21Z
Version
19.17_20220121_1250
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.
European Space Agency, Ms Andrea Gokus, 2023, 'Gamma-ray flares from supermassive black holes at high redshift', 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-awweqaw
