| Name | 020465 |
| Title | COMPLETING THE X-RAY CENSUS OF NEARBY SEYFERT GALAXIES: OUR HIDDEN NEIGHBOURS |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204650101 |
| DOI | https://doi.org/10.5270/esa-5gjea8o |
| Author | European Space Agency |
| Description | Consideration of the CfA sample of Seyfert galaxies reveals the suprising fact that only half the sample, well studied at most wavelengths, has been observed in the X-ray regime. It is likely these are absorbed sources, and it is important to observe these with XMM to redress our picture of low-z AGN. While much recent work has focussed on obscured AGN at high-z, obscured local sources are an important and neglected part of the luminosity function. These local sources also offer the opportunity to observe a level of detail in the X-ray spectra which is currently impossible to study in high-z sources. XMM observations of local Seyferts complement those at other wavebands & test unification schemes. These sources may also hold secrets undetectable in the more distant counterparts. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-05-10T18:48:57Z/2005-01-07T04:37:14Z |
| 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 | 2006-02-10T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2006, Completing The X-Ray Census Of Nearby Seyfert Galaxies: Our Hidden Neighbours, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5gjea8o |