A dataset provided by the European Space Agency

Name: Investigating the origin of hard X-ray spectra in broad-line AGN
Published: 2003-06-07T00:00:00Z

Proposal ID	006194
Title	Investigating the origin of hard X-ray spectra in broad-line AGN
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0061940101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0061940201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0061940301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0061940901
DOI	https://doi.org/10.5270/esa-ycahljd
Principal Investigator, PI	Dr Francisco J. Carrera
Abstract	We have found a population of hard spectrum X-ray AGN which have broadlines. These may be bright examples of the hard sources that dominate the sourcecounts in the 2-10virgulkeV band, and therefore produce most of the X-ray emission inthe Universe. These sources are an exciting and surprising discovery because thehard X-ray AGN were expected to have narrow lines. We propose to observe asample of these AGN with XMM to find out why their X-ray emission is hard. EPICspectra will enable us to distinguish between absorption of an otherwisestandard soft spectral shape, and intrinsically hard emission, perhaps producedby advection dominated accretion. If they are not absorbed, popular models forthe origin of the X-ray background will need to be rewritten.
Publications	XMM-Newton spectra of hard spectrum Rosat AGN: X-ray absorption and optical reddening \|Carrera, F. J., Page, M. J., \| A&A \| 420-163 \| 2004 \| 2004A&A...420..163C \| http://ui.adsabs.harvard.edu/#abs/2004A&A...420..163C Exploring the X-ray sky with the XMM-Newton bright serendipitous survey \|Della Ceca, R., Maccacaro, T., et al. \| A&A \| 428-383 \| 2004 \| 2004A&A...428..383D \| http://ui.adsabs.harvard.edu/#abs/2004A&A...428..383D High-precision multi-band measurements of the angular clustering of X-ray sources \|Ebrero, J., Mateos, S., et al. \| A&A \| 500-749 \| 2009 \| 2009A&A...500..749E \| http://ui.adsabs.harvard.edu/#abs/2009A&A...500..749E The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue \|Watson, M. G., Schroder, A. C., et al. \| A&A \| 493-339 \| 2009 \| 2009A&A...493..339W \| http://ui.adsabs.harvard.edu/#abs/2009A&A...493..339W The X-ray Energy Dependence of the Relation Between Optical and X-ray Emission in Quasars \|Young, M., Elvis, M., \| ApJ \| 708-1388 \| 2010 \| 2010ApJ...708.1388Y \| http://ui.adsabs.harvard.edu/#abs/2010ApJ...708.1388Y An Extremely Luminous Panchromatic Outburst from the Nucleus of a Distant Galaxy \|Levan, A. J., Tanvir, N. R., et al. \| Sci \| 333-199 \| 2011 \| 2011Sci...333..199L \| http://ui.adsabs.harvard.edu/#abs/2011Sci...333..199L The XMM-Newton Wide Angle Survey (XWAS): the X-ray spectrum of type-1 AGN \|Mateos, S., Carrera, F. J., et al. \| A&A \| 510-35 \| 2010 \| 2010A&A...510A..35M \| http://ui.adsabs.harvard.edu/#abs/2010A&A...510A..35M Average Fe Kalpha emission from distant AGN \|Corral, A., Page, M. J., et al. \| A&A \| 492-71 \| 2008 \| 2008A&A...492...71C \| http://ui.adsabs.harvard.edu/#abs/2008A&A...492...71C New constraints on the X-ray spectral properties of type 1 active galactic nuclei \|Scott, A. E., Stewart, G. C., et al. \| MNRAS \| 417-992 \| 2011 \| 2011MNRAS.417..992S \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.417..992S X-ray absorption in distant type II QSOs \|Krumpe, M., Lamer, G., et al. \| A&A \| 483-415 \| 2008 \| 2008A&A...483..415K \| http://ui.adsabs.harvard.edu/#abs/2008A&A...483..415K Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras \|Mateos, S., Saxton, R. D., et al. \| A&A \| 496-879 \| 2009 \| 2009A&A...496..879M \| http://ui.adsabs.harvard.edu/#abs/2009A&A...496..879M The XMM Cluster Survey: optical analysis methodology and the first data release \|Mehrtens, Nicola, Romer, A. Kathy, et al. \| MNRAS \| 423-1024 \| 2012 \| 2012MNRAS.423.1024M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.1024M 2XMM ultraluminous X-ray source candidates in nearby galaxies \|Walton, D. J., Roberts, T. P., et al. \| MNRAS \| 416-1844 \| 2011 \| 2011MNRAS.416.1844W \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.416.1844W X-ray Insights into the Physics of Mini-BAL Quasar Outflows \|Gibson, Robert R., Brandt, W. N., et al. \| ApJ \| 696-924 \| 2009 \| 2009ApJ...696..924G \| http://ui.adsabs.harvard.edu/#abs/2009ApJ...696..924G The XMM-Newton HBS28 sample: Studying the obscuration in hard X-ray selected AGNs \|Caccianiga, A., Severgnini, P., et al. \| A&A \| 416-901 \| 2004 \| 2004A&A...416..901C \| http://ui.adsabs.harvard.edu/#abs/2004A&A...416..901C XMM-Newton spectroscopy of an X-ray selected sample of RL AGNs \|Galbiati, E., Caccianiga, A., et al. \| A&A \| 430-927 \| 2005 \| 2005A&A...430..927G \| http://ui.adsabs.harvard.edu/#abs/2005A&A...430..927G The XMM-Newton serendipitous survey. III. The AXIS X-ray source counts and angular clustering \|Carrera, F. J., Ebrero, J., et al. \| A&A \| 469-27 \| 2007 \| 2007A&A...469...27C \| http://ui.adsabs.harvard.edu/#abs/2007A&A...469...27C High precision X-ray log N - log S distributions: implications for the obscured AGN population \|Mateos, S., Warwick, R. S., et al. \| A&A \| 492-51 \| 2008 \| 2008A&A...492...51M \| http://ui.adsabs.harvard.edu/#abs/2008A&A...492...51M Are Optically Selected Quasars Universally X-Ray Luminous? X-Ray-UV Relations in Sloan Digital Sky Survey Quasars \|Gibson, Robert R., Brandt, W. N., \| ApJ \| 685-773 \| 2008 \| 2008ApJ...685..773G \| http://ui.adsabs.harvard.edu/#abs/2008ApJ...685..773G The XMM-Newton serendipitous survey. VI. The X-ray luminosity function \|Ebrero, J., Carrera, F. J., et al. \| A&A \| 493-55 \| 2009 \| 2009A&A...493...55E \| http://ui.adsabs.harvard.edu/#abs/2009A&A...493...55E Statistics of relativistically broadened Fe Kalpha lines in AGN \|Guainazzi, M., Bianchi, S., \| AN \| 327-1032 \| 2006 \| 2006AN....327.1032G \| http://ui.adsabs.harvard.edu/#abs/2006AN....327.1032G Breaking the sigma8-Omega m Degeneracy Using the Clustering of High-z X-ray Active Galactic Nuclei \|Basilakos, Spyros, Plionis, Manolis, \| ApJ \| 714-185 \| 2010 \| 2010ApJ...714L.185B \| http://ui.adsabs.harvard.edu/#abs/2010ApJ...714L.185B The X-ray spectral properties of the AGN population in the XMM-Newton bright serendipitous survey \|Corral, A., Della Ceca, R., et al. \| A&A \| 530-42 \| 2011 \| 2011A&A...530A..42C \| http://ui.adsabs.harvard.edu/#abs/2011A&A...530A..42C A large catalogue of ultraluminous X-ray source candidates in nearby galaxies \|Walton, D. J., Gladstone, J. C., et al. \| AN \| 332-354 \| 2011 \| 2011AN....332..354W \| http://ui.adsabs.harvard.edu/#abs/2011AN....332..354W A serendipitous XMM survey of the SDSS: the evolution of the colour-magnitude diagram of X-ray AGN from z= 0.8 to 0.1 \|Georgakakis, Antonis, Nandra, K., \| MNRAS \| 414-992 \| 2011 \| 2011MNRAS.414..992G \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.414..992G An All-Sky Atlas of Radio/X-ray Associations \|Flesch, E., \| PASA \| 27-283 \| 2010 \| 2010PASA...27..283F \| http://ui.adsabs.harvard.edu/#abs/2010PASA...27..283F Fe Kalpha line profile in AGNs: average shape and redshift dependence \|Mao, Wei-Ming, Hu, Chen, et al. \| RAA \| 10-905 \| 2010 \| 2010RAA....10..905M \| http://ui.adsabs.harvard.edu/#abs/2010RAA....10..905M Mining for normal galaxies in the first XMM-Newton Serendipitous Source Catalog \|Georgakakis, A. E., Chavushyan, V., et al. \| MNRAS \| 367-1017 \| 2006 \| 2006MNRAS.367.1017G \| http://ui.adsabs.harvard.edu/#abs/2006MNRAS.367.1017G CAIXA: a catalogue of AGN in the XMM-Newton archive. I. Spectral analysis \|Bianchi, S., Guainazzi, M., et al. \| A&A \| 495-421 \| 2009 \| 2009A&A...495..421B \| http://ui.adsabs.harvard.edu/#abs/2009A&A...495..421B The XMM Cluster Survey: X-ray analysis methodology \|Lloyd-Davies, E. J., Romer, A. Kathy, et al. \| MNRAS \| 418-14 \| 2011 \| 2011MNRAS.418...14L \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.418...14L Exospheric solar wind charge exchange as seen by XMM-Newton \|Carter, J. A., Semba, S., \| AN \| 333-313 \| 2012 \| 2012AN....333..313C \| http://ui.adsabs.harvard.edu/#abs/2012AN....333..313C Detectability of low-energy X-ray spectral components in type 1 active galactic nuclei \|Scott, A. E., Stewart, G. C., \| MNRAS \| 423-2633 \| 2012 \| 2012MNRAS.423.2633S \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.2633S The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive \|Clerc, N., Sadibekova, T., et al. \| MNRAS \| 423-3561 \| 2012 \| 2012MNRAS.423.3561C \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.3561C Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog \|Lin, Dacheng, Webb, Natalie A., \| ApJ \| 756-27 \| 2012 \| 2012ApJ...756...27L \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...756...27L An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities \|Henley, David B., Shelton, Robin L., \| ApJS \| 202-14 \| 2012 \| 2012ApJS..202...14H \| http://ui.adsabs.harvard.edu/#abs/2012ApJS..202...14H The XMM-Newton serendipitous ultraviolet source survey catalogue \|Page, M. J., Brindle, C., et al. \| MNRAS \| 426-903 \| 2012 \| 2012MNRAS.426..903P \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.426..903P On the Iwasawa-Taniguchi effect of radio-quiet AGN \|Bianchi, S., Guainazzi, M., et al. \| A&A \| 467-19 \| 2007 \| 2007A&A...467L..19B \| http://ui.adsabs.harvard.edu/#abs/2007A&A...467L..19B Properties of the integrated spectrum of serendipitous 2XMM catalog sources \|Chaudhary, P., Brusa, M., et al. \| A&A \| 518-58 \| 2010 \| 2010A&A...518A..58C \| http://ui.adsabs.harvard.edu/#abs/2010A&A...518A..58C Rest-frame stacking of 2XMM catalog sources. Properties of the Fe Kalpha line \|Chaudhary, P., Brusa, M., et al. \| A&A \| 537-6 \| 2012 \| 2012A&A...537A...6C \| http://ui.adsabs.harvard.edu/#abs/2012A&A...537A...6C The stellar content of the XMM-Newton bright serendipitous survey \|Lopez-Santiago, J., Micela, G., et al. \| A&A \| 463-165 \| 2007 \| 2007A&A...463..165L \| http://ui.adsabs.harvard.edu/#abs/2007A&A...463..165L Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey \|Pineau, F.-X., Motch, C., et al. \| A&A \| 527-126 \| 2011 \| 2011A&A...527A.126P \| http://ui.adsabs.harvard.edu/#abs/2011A&A...527A.126P A systematic cross-search for radio/infrared counterparts of XMM- Newton sources \|Combi, J. A., Albacete Colombo, J. F., et al. \| Ap&SS \| 331-53 \| 2011 \| 2011Ap&SS.331...53C \| http://ui.adsabs.harvard.edu/#abs/2011Ap&SS.331...53C Exploring X-ray and radio emission of type 1 AGN up to z virgul 2.3 \|Ballo, L., Heras, F. J. H., et al. \| A&A \| 545-66 \| 2012 \| 2012A&A...545A..66B \| http://ui.adsabs.harvard.edu/#abs/2012A&A...545A..66B The XMM-Newton serendipitous source catalogue \|Watson, M. G., Pye, J. P., et al. \| AN \| 324-89 \| 2003 \| 2003AN....324...89W \| http://ui.adsabs.harvard.edu/#abs/2003AN....324...89W The 2-8 keV cosmic X-ray background spectrum as observed with XMM-Newton \|De Luca, A., Molendi, S., \| A&A \| 419-837 \| 2004 \| 2004A&A...419..837D \| http://ui.adsabs.harvard.edu/#abs/2004A&A...419..837D High spectral resolution X-ray observations of AGN \|Kaastra, J. S., \| AN \| 329-162 \| 2008 \| 2008AN....329..162K \| http://ui.adsabs.harvard.edu/#abs/2008AN....329..162K The Fifth Data Release Sloan Digital Sky Survey/XMM-Newton Quasar Survey \|Young, M., Elvis, M., \| ApJS \| 183-17 \| 2009 \| 2009ApJS..183...17Y \| http://ui.adsabs.harvard.edu/#abs/2009ApJS..183...17Y The XMM-Newton Wide Angle Survey (XWAS) \|Esquej, P., Page, M., et al. \| A&A \| 557-123 \| 2013 \| 2013A&A...557A.123E \| http://ui.adsabs.harvard.edu/#abs/2013A&A...557A.123E A statistical relation between the X-ray spectral index and Eddington ratio of active galactic nuclei in deep surveys \|Brightman, M., Silverman, J. D., et al. \| MNRAS \| 433-2485 \| 2013 \| 2013MNRAS.433.2485B \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.433.2485B The diversity of quasars unified by accretion and orientation \|Shen, Yue, Ho, Luis C., \| Natur \| 513-210 \| 2014 \| 2014Natur.513..210S \| http://ui.adsabs.harvard.edu/#abs/2014Natur.513..210S Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift \|Yershov, V. N., \| Ap&SS \| 354-97 \| 2014 \| 2014Ap&SS.354...97Y \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y Obscuration-dependent Evolution of Active Galactic Nuclei \|Buchner, Johannes, Georgakakis, Antonis, et al. \| ApJ \| 802-89 \| 2015 \| 2015ApJ...802...89B \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...802...89B ERRATUM: The Fifth Data Release Sloan Digital Sky Survey/XMM-Newton Quasar Survey (2009, ApJS, 183, 17) \|Young, M., Elvis, M., \| ApJS \| 185-250 \| 2009 \| 2009ApJS..185..250Y \| http://ui.adsabs.harvard.edu/#abs/2009ApJS..185..250Y CAIXA: a catalogue of AGN in the XMM-Newton archive. II. Multiwavelength correlations \|Bianchi, S., Bonilla, N. F., et al. \| A&A \| 501-915 \| 2009 \| 2009A&A...501..915B \| http://ui.adsabs.harvard.edu/#abs/2009A&A...501..915B The relationship between O IIIlambda5007 A equivalent width and obscuration in active galactic nuclei \|Caccianiga, A., Severgnini, P., \| MNRAS \| 415-1928 \| 2011 \| 2011MNRAS.415.1928C \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.415.1928C Sunyaev-Zel.dovich effect or not? Detecting the main foreground effect of most galaxy clusters \|Xiao, Weike, Chen, Chen, et al. \| MNRAS \| 432-41 \| 2013 \| 2013MNRAS.432L..41X \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.432L..41X Do the spectral energy distributions of type 1 active galactic nuclei show diversity? \|Scott, A. E., Stewart, G. C., \| MNRAS \| 438-2253 \| 2014 \| 2014MNRAS.438.2253S \| http://ui.adsabs.harvard.edu/#abs/2014MNRAS.438.2253S Non-detection of X-ray emission from sterile neutrinos in stacked galaxy spectra \|Anderson, Michael E., Churazov, Eugene, \| MNRAS \| 452-3905 \| 2015 \| 2015MNRAS.452.3905A \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.452.3905A Swift follow-up of IceCube triggers, and implications for the Advanced-LIGO era \|Evans, P. A., Osborne, J. P., et al. \| MNRAS \| 448-2210 \| 2015 \| 2015MNRAS.448.2210E \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.448.2210E 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 Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function \|Vagnetti, F., Middei, R., et al. \| A&A \| 593-55 \| 2016 \| 2016A&A...593A..55V \| http://ui.adsabs.harvard.edu/#abs/2016A&A...593A..55V The Interaction of the Fermi Bubbles with the Milky Way.s Hot Gas Halo \|Miller, Matthew J., Bregman, Joel N., \| ApJ \| 829-9 \| 2016 \| 2016ApJ...829....9M \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...829....9M SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV \|Clerc, N., Merloni, A., et al. \| MNRAS \| 463-4490 \| 2016 \| 2016MNRAS.463.4490C \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.463.4490C 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 (likely) X-ray jet from NGC6217 observed by XMM-Newton \|Falocco, Serena, Larsson, Josefin, \| MNRAS \| 472-2280 \| 2017 \| 2017MNRAS.472.2280F \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.472.2280F Anisotropy of the galaxy cluster X-ray luminosity-temperature relation \|Migkas, Konstantinos, Reiprich, Thomas H., \| A&A \| 611-50 \| 2018 \| 2018A&A...611A..50M \| http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..50M Chandra Survey of Nearby Galaxies: Testing the Accretion Model for Low-luminosity AGNs \|She, Rui, Ho, Luis C., et al. \| ApJ \| 859-152 \| 2018 \| 2018ApJ...859..152S \| http://ui.adsabs.harvard.edu/#abs/2018ApJ...859..152S The XMM Cluster Survey: Present status and latest results \|Viana, P. T. P., Mehrtens, N., et al. \| AN \| 334-462 \| 2013 \| 2013AN....334..462V \| http://ui.adsabs.harvard.edu/#abs/2013AN....334..462V The Spectrum of the Universe \|Hill, Ryley, Masui, Kiyoshi W., \| ApSpe \| 72-663 \| 2018 \| 2018ApSpe..72..663H \| http://ui.adsabs.harvard.edu/#abs/2018ApSpe..72..663H A new, clean catalogue of extragalactic non-nuclear X-ray sources in nearby galaxies \|Earnshaw, H. P., Roberts, T. P., et al. \| MNRAS \| 483-5554 \| 2019 \| 2019MNRAS.483.5554E \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.483.5554E The evolving X-ray spectrum of active galactic nuclei: Evidence for an increasing reflection fraction with redshift \|Avirett-Mackenzie, M. S., Ballantyne, D. R., \| MNRAS \| 486-3488 \| 2019 \| 2019MNRAS.486.3488A \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.486.3488A Unveiling the 100 pc scale nuclear radio structure of NGC 6217 with e-MERLIN and the VLA \|Williams, D. R. A., McHardy, I. M., et al. \| MNRAS \| 486-4962 \| 2019 \| 2019MNRAS.486.4962W \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.486.4962W Testing emergent gravity on galaxy cluster scales \|Tamosiunas, Andrius, Bacon, David, et al. \| JCAP \| 5-53 \| 2019 \| 2019JCAP...05..053T \| http://ui.adsabs.harvard.edu/#abs/2019JCAP...05..053T Chandra Follow-up of the SDSS DR8 Redmapper Catalog Using the MATCha Pipeline \|Hollowood, Devon L., Jeltema, Tesla, et al. \| ApJS \| 244-22 \| 2019 \| 2019ApJS..244...22H \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..244...22H Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters \|Palmese, A., Annis, J., et al. \| MNRAS \| 493-4591 \| 2020 \| 2020MNRAS.493.4591P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.493.4591P X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation \|Molham, Mona, Clerc, Nicolas, et al. \| MNRAS \| 494-161 \| 2020 \| 2020MNRAS.494..161M \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.494..161M Accretion History of AGNs. II. Constraints on AGN Spectral Parameters Using the Cosmic X-Ray Background \|Ananna, Tonima Tasnim, Treister, Ezequiel, et al. \| ApJ \| 889-17 \| 2020 \| 2020ApJ...889...17A \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...889...17A Multiwavelength classification of X-ray selected galaxy cluster candidates using convolutional neural networks \|Kosiba, Matej, Lieu, Maggie, et al. \| MNRAS \| 496-4141 \| 2020 \| 2020MNRAS.496.4141K \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.496.4141K SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release \|Clerc, N., Kirkpatrick, C. C., et al. \| MNRAS \| 497-3976 \| 2020 \| 2020MNRAS.497.3976C \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.497.3976C An X-Ray- and SZ-bright Diffuse Source toward M31: A Local Hot Bridge \|Qu, Zhijie, Huang, Rui, et al. \| ApJ \| 907-14 \| 2021 \| 2021ApJ...907...14Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...907...14Q 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 The impact of precession on the observed population of ULXs \|Khan, Norman, Middleton, Matthew J., et al. \| MNRAS \| 509-2493 \| 2022 \| 2022MNRAS.509.2493K \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.509.2493K The Solar Cycle Temporal Variation of the Solar Wind Charge Exchange X-Ray Lines \|Qu, Zhijie, Koutroumpa, Dimitra, et al. \| ApJ \| 930-21 \| 2022 \| 2022ApJ...930...21Q \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...930...21Q The Redshift Evolution of Ultraluminous X-Ray Sources out to z 0.5: Comparison with X-Ray Binary Populations and Contribution to the Cosmic X-Ray Background \|Scott Barrows, R., Comerford, Julia M., et al. \| ApJ \| 932-27 \| 2022 \| 2022ApJ...932...27S \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...932...27S Dependency of optical/UV parameters on X-ray spectral index in AGNs \|Nour, D., Sriram, K., \| JHEAp \| 37-34 \| 2023 \| 2023JHEAp..37...34N \| http://ui.adsabs.harvard.edu/#abs/2023JHEAp..37...34N 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 From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R 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	2001-01-03T09:52:13Z/2002-04-11T17:43:28Z
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	2003-06-07T00:00:00Z
Keywords	"broad line agn", "source counts", "XMM", "bright examples", "hard emission", "surprising discovery", "xray background", "advection dominated accretion", "narrow lines", "hard xray spectra", "epic spectra", "broad lines", "kev band", "xray emission", "EPIC", "hard xray agn", "hard sources", "popular models"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Francisco J. Carrera, 2003, 'Investigating the origin of hard X-ray spectra in broad-line AGN', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ycahljd