Proposal ID | 003914 |
Title | The obscured quasars in IRAS F15307+3252 and similar objects |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0039140101 |
DOI | https://doi.org/10.5270/esa-gddnsif |
Principal Investigator, PI | Dr Carolin Crawford |
Abstract | We propose to determine whether some of the most powerful galaxies in the Universe are powered by active nuclei, by detecting IRAS F15307+3252 and threeapparently similar objects with XMM. We wish to confirm that F15307+3252 is theprototype of the long-sought class of luminous type 2 AGN, the highly obscuredquasars. Optical spectropolarimetry revealed a buried quasar, but previous X-raymissions did not detect it, suggesting that the line of sight is Thomson-thick.The non-thermal X-ray emission only emerges from behind the obscuration atenergies above 10 keV, which, at the redshift of F15307+3252, is redshifted wellinto the XMM band. Any scattered nuclear emission will also be detectable atsome level. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2002-07-30T12:06:53Z/2002-07-30T19:31:56Z |
Version | 17.56_20190403_1200 |
Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 | 2003-08-30T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "luminous type", "nonthermal xray emission", "scattered nuclear emission", "xmm band", "thomson thick", "buried quasar", "xray missions", "sought class", "iras f15307", "obscured quasars", "XMM", "powerful galaxy", "optical spectropolarimetry", "active nuclei" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Carolin Crawford, 2003, 'The obscured quasars in IRAS F15307+3252 and similar objects', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-gddnsif |