| Proposal ID | 014719 |
| Title | An unobscured view of the Seyfert X-ray continuum |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0147190101 |
| DOI | https://doi.org/10.5270/esa-l3vtmgk |
| Principal Investigator, PI | Dr Simon Vaughan |
| Abstract | We propose 50 ksec observations of two of the brightest,unabsorbed but otherwise normal Seyfert 1 nuclei: MCG--2-58-22 andArk 120. We will constrain the intrinsic X-ray continuum with fargreater precision than is possible in other, more spectrally complexobjects and will and test the fundamental assumption that the Seyfertcontinuum is well-represented by a (Gamma~1.9) power-law.We will determine the iron line profile parameters, search for signsof soft X-ray reflection features and measure changes in the shape ofthe continuum, free from the ambiguities associated with simultaneouslymodelling the complex absorption present in other bright Seyferts. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-08-24T05:35:43Z/2003-08-25T12:44:50Z |
| 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 | 2004-09-25T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "otherwise normal seyfert", "soft xray reflection", "bright seyferts", "ark 120", "seyfert xray continuum", "xray continuum", "complex absorption", "power law", "seyfert continuum", "spectrally complex objects" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Simon Vaughan, 2004, 'An unobscured view of the Seyfert X-ray continuum', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-l3vtmgk |