| Name | 040534 |
| Title | 3C 234: a Compton-thick radio-loud Type 2 quasar in the backyard? |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0405340101 |
| 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 |