A dataset provided by the European Space Agency

Name 079064


DOI https://doi.org/10.5270/esa-c8fdymj
Author Dr Anne Maria Lohfink
Description We propose to observe Mrk 926 for 35 ks with XMM and 100 ks with NuSTAR to explore the Comptonization spectrum of this bright Seyfert 1 galaxy. Previous analyses of non-simultaneous observations have found a lower limit of the high energy cut-off of 510 keV, bringing it in disagreement by the temperature limit set by run-away pair production. With the proposed observations we will test, whether Mrk 926.s spectrum is consistent with thermal Comptonization or not. If it is, we can study its Comptonization spectrum from the UV to the hard X-rays and would obtain key information on the properties of coronae typical for Seyferts. However, if we find that the temperature is inconsistent with thermal Comptonization, we can use this dataset to understand which other process could be responsible.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2016-11-21T10:42:37Z/2016-11-22T03:05:57Z
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 2017-12-02T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2017-12-02T23:00:00Z, 079064, 17.56_20190403_1200. https://doi.org/10.5270/esa-c8fdymj