A dataset provided by the European Space Agency

Name 040534
Title 3C 234: a Compton-thick radio-loud Type 2 quasar in the backyard?


DOI https://doi.org/10.5270/esa-dxipftw
Author Dr Enrico Piconcelli
Description We propose a 30 ks XMM-Newton observation of the hidden radio-loud quasar 3C 234
(z = 0.1848). The F(2-10)/F(O[III]) ratio and a low signal-to-noise ASCA
spectrum strongly suggest the possibility that the nuclear absorber is
Compton-thick. The detection of a Fe Kalpha line with EW larger than 1 keV in
the XMM-Newton spectrum would definitely confirm this suggestions. If so, 3C 234
would turn out to be the first Compton-thick radio-loud Type 2 QSO observed and,
with an intrinsic 2-10 keV luminosity of 3 x 10e46 erg/s, one of the very most
powerful object ever detected at z less than 0.2. The discovery of an AGN with
such peculiar properties is strongly needed in the framework of Unified Models
and, thereby, in the synthesis models of the X-ray cosmic background.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2006-04-24T05:58:49Z/2006-04-24T17:04:10Z
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 2008-08-29T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Enrico Piconcelli, 2008, 040534, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-dxipftw