| Name | 003214 |
| Title | Chasing quasar 2 with XMM |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0032140101 |
| DOI | https://doi.org/10.5270/esa-bvcdzbq |
| Author | European Space Agency |
| Description | Highly obscured quasarvirgul2 have been proposed as the main contributors to the hard X-ray background. Despite years of searches only an handful of such sources is known. We propose to observe with XMM a sample of 9 relatively bright (F(5-10 keV)=2-10E-13 cgs) .High Energy LLarge Area Survey. (HELLAS) X-ray sources, discovered by the BeppoSAX MECS in the hard X-ray band 5-10 keV. We selected the sources according to two criteria: a) highest hardness ratio in the 2-10 keV band; highest ratio between the MECS 5-10 band and the ROSAT 0.5-2 keV band. This should select obscured sources in which the nucleus |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-02-28T23:52:04Z/2002-01-03T18:53:24Z |
| 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 | 2003-02-01T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2003, Chasing Quasar 2 With Xmm, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-bvcdzbq |