| Proposal ID | 030091 |
| Title | A hunt for X-ray absorbed Narrow Line Seyfert 1s using the FeII/Hbeta ratio |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300910101 |
| DOI | https://doi.org/10.5270/esa-24k3f4t |
| Principal Investigator, PI | Dr Enrico Piconcelli |
| Abstract | We propose to observe a sample of four Narrow Line Seyfert 1 galaxies withstrong Fe II emission (FeNLS1s) for a total allocation time of 115 ks. The goalof this proposal is to test how common is the spectral hard X-ray (E~7-8 keV)absorption feature in FeNLS1s, recently observed in two objects of this class.This feature appears as a clear signature of dense matter outflowing from thenucleus. If our optically-based criterion (i.e. Fe II4570/Hbeta higher than 1.5)would be efficient in selecting objects with deep sharp X-ray edges, the originof this feature in outflowing clouds would be supported. A frequent occurrenceof this spectral drop will therefore provide clues of an intimate link betweenNLS1s and BAL QSOs phenomena. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-06-17T13:14:34Z/2006-01-24T21:13:25Z |
| 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 | 2008-01-10T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "outflowing clouds", "spectral drop", "bal qsos phenomena", "spectral hard xray", "fe ii4570", "hbeta ratio", "narrow line seyfert", "frequent occurrence", "dense matter outflowing", "total allocation time", "kev absorption", "intimate link", "selecting objects" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Enrico Piconcelli, 2008, 'A hunt for X-ray absorbed Narrow Line Seyfert 1s using the FeII/Hbeta ratio', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-24k3f4t |