A dataset provided by the European Space Agency

Name 088321
Title Mirror, Mirror, on the Wall\: Constraining Reflection in Compton-Thick AGN
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883210401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883210601
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883210701
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883211001
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883211101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883211201

DOI https://doi.org/10.57780/esa-wim5ojd
Author Dr Michael Koss
Description For more than 30 years, it has been assumed that a pc-scale torus produces a
constant Compton-reflection component in heavily obscured AGN. We recently
finished the 157-month Swift BAT processing and found to our surprise that
nearly all of the brightest CT AGN are variable. We propose a variability study
of 10 CT AGN with significant variability detected in multi-epoch NuSTAR
observations at 2-10 keV, where a significant reflection component was detected,
but none or only one high S/N soft X-ray observation exists so the observations
are poorly constrained. This is a time critical opportunity to take advantage of
a recent large set of legacy NuSTAR observations from this summer to study
shorter virgul1 year-long variability periods in CT AGN.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2021-06-17T17:19:17Z/2022-03-28T18:35:19Z
Version 19.17_20220121_1250
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 2023-04-21T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Michael Koss, 2023, 088321, 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-wim5ojd