| Proposal ID | 074139 |
| Title | Is there a more efficient way of finding strong Fe Lalpha emitters? |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741390101 |
| DOI | https://doi.org/10.5270/esa-bev5slu |
| Principal Investigator, PI | Prof Luigi Gallo |
| Abstract | A systematic search, starting with more than 350 AGN in the XMM archive,resulted in the discovery of less than 10 candidates that could be strong Fe~Laemitters. Combing through archives may not be the most efficient way to findsuch sources. However, all these objects exhibit a common characteristic. Theseobjects are the most extreme NLS1s with the narrowest Hb line widths and thestrongest optical FeII emission. In this proposal we target objects in the RASSsample of NLS1s that meet this criteria to determine if optical properties canbe used to identify strong Fe La emitters. This proof of concept work has thepotential to greatly increase the number of known Fe La emitters, which wouldallow us to confirm the nature of the soft-excess, and identify candidates for future reverberation studies. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2014-05-26T04:25:54Z/2014-07-02T06:22:40Z |
| 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 | 2015-09-22T22:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "future reverberation", "target objects", "la emitters", "rass sample", "systematic search", "objects exhibit", "xmm archive", "optical properties", "soft excess", "XMM", "fe la emitters" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Luigi Gallo, 2015, 'Is there a more efficient way of finding strong Fe Lalpha emitters?', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-bev5slu |