A dataset provided by the European Space Agency

Name: Unraveling the accretion structure of the double-peaked emitter SDSS J2125-0813
Published: 2009-06-10T00:00:00Z

Proposal ID	050541
Title	Unraveling the accretion structure of the double-peaked emitter SDSS J2125-0813
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505410101
DOI	https://doi.org/10.5270/esa-j0ld668
Principal Investigator, PI	Dr Iskra Strateva
Abstract	We propose to obtain a 45ks X-ray spectrum of SDSSJ2125-0813 - the most luminousradio quiet quasar that shows signs of accretion disk emission in the optical. Ashort exploratory Chandra observation of this object revealed tentative evidencefor an unusually strong, ionized, broad Fe Ka line combined with little or nointrinsic absorption. The proposed XMM-Newton observation will confirm or refutethe presence of a relativistic Fe Ka line, the first such line to be detected ina double-peaked emitter. Alternatively, the detection of a strong narrow linewill provide a rare example of strong Fe Ka emission in an active galaxy withquasar-like luminosity.
Publications	CAIXA: a catalogue of AGN in the XMM-Newton archive. III. Excess variance analysis \|Ponti G. Papadakis I. et al. \| A&A \| 542-83 \| 2012 \| 2012A&A...542A..83P \| http://ui.adsabs.harvard.edu/#abs/2012A&A...542A..83P X-ray and multiwavelength insights into the inner structure of high-luminosity disc-like emitters \|Luo B. Brandt W. N. et al. \| MNRAS \| 429-1479 \| 2013 \| 2013MNRAS.429.1479L \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.429.1479L X-ray reverberation around accreting black holes \|Uttley P. Cackett E. M. et al. \| A&ARv \| 22-72 \| 2014 \| 2014A&ARv..22...72U \| http://ui.adsabs.harvard.edu/#abs/2014A&ARv..22...72U XMM-Newton publication statistics \|Ness J.-U. Parmar A. N. et al. \| AN \| 335-210 \| 2014 \| 2014AN....335..210N \| http://ui.adsabs.harvard.edu/#abs/2014AN....335..210N The Tight Relation between X-Ray and Ultraviolet Luminosity of Quasars \|Lusso E. Risaliti G. \| ApJ \| 819-154 \| 2016 \| 2016ApJ...819..154L \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...819..154L The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch Eric W. \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F A Luminous X-Ray Transient in SDSS J143359.16+400636.0: A Likely Tidal Disruption Event \|Brightman Murray Ward Charlotte et al. \| ApJ \| 909-102 \| 2021 \| 2021ApJ...909..102B \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...909..102B Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z X-ray emission from a rapidly accreting narrow-line Seyfert 1 galaxy at z = 6.56 \|Wolf J. Nandra K. et al. \| A&A \| 669-127 \| 2023 \| 2023A&A...669A.127W \| http://ui.adsabs.harvard.edu/#abs/2023A&A...669A.127W The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P Robust constraints on feebly interacting particles using XMM-Newton \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2008-04-24T11:40:22Z/2008-04-25T00:33:10Z
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	2009-06-10T00:00:00Z
Last Update	2025-01-27
Keywords	"fe ka emission", "narrow line", "sdssj2125 0813", "tentative evidence", "short exploratory chandra", "SDSS", "xmm newton", "XMM-Newton", "double peaked emitter", "rare example", "active galaxy", "accretion disk emission", "accretion structure", "XMM", "xray spectrum"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Iskra Strateva, 2009, 'Unraveling the accretion structure of the double-peaked emitter SDSS J2125-0813', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-j0ld668