A dataset provided by the European Space Agency

Name 074096
Title Early evolution of AGN X-ray coronae and the X-ray, BLR, disc-wind connection
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0740960101

DOI https://doi.org/10.5270/esa-2ij9pzm
Author Dr Giovanni Miniutti
Description We request a quasi-simultaneous XMM-Newton and HST-STIS observation of GSN 069, a high-Eddington ratio true-unabsorbed Seyfert 2 galaxy candidate with ultra-soft X-ray spectrum. From our study of previous X-ray-optical spectra and of UV photometric data, we infer that the lack of BLR in this peculiar object may be attributed to ether (i) the lack of hard X-ray emission or (ii) an evolutionary scenario in which the BLR are just forming. Recent Swift pointings have revealed the emergence of hard X-rays in GSN 069, making the proposed observation highly timely. GSN 069 may represent a true Rosetta stone with which to follow the formation and early evolution of the X-ray corona and to study the connection between X-rays and the BLR-disc-wind system.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2014-12-05T00:15:10Z/2014-12-06T02:40:10Z
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 2016-01-09T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2016, 074096, 17.56_20190403_1200. https://doi.org/10.5270/esa-2ij9pzm