A dataset provided by the European Space Agency

Name 074139
Title Is there a more efficient way of finding strong Fe Lalpha emitters?


DOI 10.5270/esa-bev5slu
Author Prof Luigi Gallo
Description 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~La emitters. Combing through archives may not be the most efficient way to find such sources. However, all these objects exhibit a common characteristic. These objects are the most extreme NLS1s with the narrowest Hb line widths and the strongest optical FeII emission. In this proposal we target objects in the RASS sample of NLS1s that meet this criteria to determine if optical properties can be used to identify strong Fe La emitters. This proof of concept work has the potential to greatly increase the number of known Fe La emitters, which would allow us to confirm the nature of the soft-excess, and identify candidates for future reverberation studies.
Publication The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Searching for gamma-ray signature in WHSP blazars. Fermi-LAT detection of 150 excess signal in the 0.3-500 GeV band . Arsioli, B., Chang, Y.-L., . A&A . 598-134 . 2017 . 2017A&A...598A.134A ,
Modelling the spectral energy distribution of super-Eddington quasars . Kubota, Aya, Done, Chris, . MNRAS . 489-524 . 2019 . 2019MNRAS.489..524K ,
A Comparison of X-Ray Photon Indices among the Narrow- and Broad-line Seyfert 1 Galaxies . Ojha, Vineet, Chand, Hum, et all. . ApJ . 896-95 . 2020 . 2020ApJ...896...95O ,
A disc reflection model for ultra-soft narrow-line Seyfert 1 galaxies . Jiang, Jiachen, Gallo, Luigi C., et all. . MNRAS . 498-3888 . 2020 . 2020MNRAS.498.3888J ,
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 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 2015-09-22T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2015-09-22T22:00:00Z, 074139, 17.56_20190403_1200. https://doi.org/10.5270/esa-bev5slu