Name | 050091 |
Title | A new population of FRIIs? |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0500910101 |
DOI | https://doi.org/10.5270/esa-exuuip4 |
Author | Dr Rita Sambruna |
Description | Unification scenarios explain various flavors of radio galaxies and quasars with orientation-dependent obscuration effects. Type-2 FRII galaxies contain a quasar seen through a dusty molecular torus aligned with the radio jet. However, there exist a population of FRIIs, found with Spitzer, that does not fit into this scheme. These FRIIs exhbit high-excitation nuclear optical emission lines, but weak 15um luminosities. One possibility is very large obscuration; alternatively, they may be a genuinely different population. XMM spectroscopy and Chandra imaging will discriminate between the two scenarios. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2007-09-01T04:20:54Z/2008-01-01T08:18:55Z |
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 | 2009-02-07T00:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Rita Sambruna, 2009, 050091, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-exuuip4 |