A dataset provided by the European Space Agency

Name: Testing the accreting intermediate-mass black hole hypothesis in two ULXs
Published: 2007-12-21T00:00:00Z

Proposal ID	040569
Title	Testing the accreting intermediate-mass black hole hypothesis in two ULXs
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0405690101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0405690201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0405690501
DOI	https://doi.org/10.5270/esa-9mhrney
Principal Investigator, PI	Dr Timothy Roberts
Abstract	We propose deep XMM-Newton observations of two bright ultraluminous X-raysources, NGC 4559 X7 and NGC 5204 X-1. Short observations of these ULXs haverevealed spectral soft excesses, consistent with an accretion disc around anintermediate-mass black hole. We will use two diagnostic tests, only accessiblethrough high signal-to-noise data, to test whether the accreting IMBH hypothesisremains viable after rigorous examination. Specifically, we will look forcurvature in the 2 - 10 keV X-ray spectrum, which is not expected if IMBHsoperate in accretion states similar to Galactic black hole binaries, and we willplace limits on the underlying black hole masses by deriving the form of thepower spectral density for each source.
Publications	Spectral States and Evolution of Ultraluminous X-Ray Sources \|Feng, Hua, Kaaret, Philip, \| ApJ \| 696-1712 \| 2009 \| 2009ApJ...696.1712F \| http://ui.adsabs.harvard.edu/#abs/2009ApJ...696.1712F A systematic study of variability in a sample of ultraluminous X-ray sources \|Heil, L. M., Vaughan, S., \| MNRAS \| 397-1061 \| 2009 \| 2009MNRAS.397.1061H \| http://ui.adsabs.harvard.edu/#abs/2009MNRAS.397.1061H The ultraluminous state \|Gladstone, Jeanette C., Roberts, Timothy P., \| MNRAS \| 397-1836 \| 2009 \| 2009MNRAS.397.1836G \| http://ui.adsabs.harvard.edu/#abs/2009MNRAS.397.1836G Spectral variability of ultraluminous X-ray sources \|Kajava, Jari J. E., Poutanen, Juri, \| MNRAS \| 398-1450 \| 2009 \| 2009MNRAS.398.1450K \| http://ui.adsabs.harvard.edu/#abs/2009MNRAS.398.1450K A revision of the X-ray absorption nature of BALQSOs \|Streblyanska, A., Barcons, X., et al. \| A&A \| 515-2 \| 2010 \| 2010A&A...515A...2S \| http://ui.adsabs.harvard.edu/#abs/2010A&A...515A...2S The scaling of X-ray variability with luminosity in ultra-luminous X-ray sources \|Gonzalez-Martin, O., Papadakis, I., et al. \| A&A \| 526-132 \| 2011 \| 2011A&A...526A.132G \| http://ui.adsabs.harvard.edu/#abs/2011A&A...526A.132G 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 Studying the X-ray/UV Variability of Active Galactic Nuclei with data from Swift and XMM archives \|Turriziani, Sara, \| JPhCS \| 280-12005 \| 2011 \| 2011JPhCS.280a2005T \| http://ui.adsabs.harvard.edu/#abs/2011JPhCS.280a2005T 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 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 The Correlation Between X-ray and UV Properties of BAL QSOs \|Fan, Lu Lu, Wang, Hui Yuan, et al. \| ApJ \| 690-1006 \| 2009 \| 2009ApJ...690.1006F \| http://ui.adsabs.harvard.edu/#abs/2009ApJ...690.1006F 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 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 Ensemble X-ray variability of active galactic nuclei from serendipitous source catalogues \|Vagnetti, F., Turriziani, S., \| A&A \| 536-84 \| 2011 \| 2011A&A...536A..84V \| http://ui.adsabs.harvard.edu/#abs/2011A&A...536A..84V Using the Bright Ultrahard XMM-Newton survey to define an IR selection of luminous AGN based on WISE colours \|Mateos, S., Alonso-Herrero, A., et al. \| MNRAS \| 426-3271 \| 2012 \| 2012MNRAS.426.3271M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.426.3271M 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 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 An XMM-Newton Survey of the Soft X-Ray Background. III. The Galactic Halo X-Ray Emission \|Henley, David B., Shelton, Robin L., \| ApJ \| 773-92 \| 2013 \| 2013ApJ...773...92H \| http://ui.adsabs.harvard.edu/#abs/2013ApJ...773...92H The ultraluminous state revisited: fractional variability and spectral shape as diagnostics of super-Eddington accretion \|Sutton, Andrew D., Roberts, Timothy P., \| MNRAS \| 435-1758 \| 2013 \| 2013MNRAS.435.1758S \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.435.1758S Uncovering obscured luminous AGN with WISE \|Mateos, S., Alonso-Herrero, A., et al. \| MNRAS \| 434-941 \| 2013 \| 2013MNRAS.434..941M \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.434..941M The Local Environment of Ultraluminous X-Ray Sources Viewed by XMM-Newton.s Optical Monitor \|Berghea, C. T., Dudik, R. P., et al. \| ApJ \| 776-100 \| 2013 \| 2013ApJ...776..100B \| http://ui.adsabs.harvard.edu/#abs/2013ApJ...776..100B Revisiting Putative Cool Accretion Disks in Ultraluminous X-Ray Sources \|Miller, J. M., Walton, D. J., et al. \| ApJ \| 776-36 \| 2013 \| 2013ApJ...776L..36M \| http://ui.adsabs.harvard.edu/#abs/2013ApJ...776L..36M A wide search for obscured active galactic nuclei using XMM-Newton and WISE \|Rovilos, E., Georgantopoulos, I., et al. \| MNRAS \| 438-494 \| 2014 \| 2014MNRAS.438..494R \| http://ui.adsabs.harvard.edu/#abs/2014MNRAS.438..494R Ultraluminous X-ray sources: a deeper insight into their spectral evolution \|Pintore, Fabio, Zampieri, Luca, et al. \| MNRAS \| 439-3461 \| 2014 \| 2014MNRAS.439.3461P \| http://ui.adsabs.harvard.edu/#abs/2014MNRAS.439.3461P Cross-calibration of the XMM-Newton EPIC pn and MOS on-axis effective areas using 2XMM sources \|Read, A. M., Guainazzi, M., \| A&A \| 564-75 \| 2014 \| 2014A&A...564A..75R \| http://ui.adsabs.harvard.edu/#abs/2014A&A...564A..75R Automatic Classification of Time-variable X-Ray Sources \|Lo, Kitty K., Farrell, Sean, et al. \| ApJ \| 786-20 \| 2014 \| 2014ApJ...786...20L \| http://ui.adsabs.harvard.edu/#abs/2014ApJ...786...20L Synapses of active galactic nuclei:. Comparing X-ray and optical classifications using artificial neural networks \|Gonzalez-Martin, O., Diaz-Gonzalez, D., et al. \| A&A \| 567-92 \| 2014 \| 2014A&A...567A..92G \| http://ui.adsabs.harvard.edu/#abs/2014A&A...567A..92G 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 On the black hole masses in ultra-luminous X-ray sources \|Zhou, Xin-Lin, \| NewA \| 37-1 \| 2015 \| 2015NewA...37....1Z \| http://ui.adsabs.harvard.edu/#abs/2015NewA...37....1Z 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 The Origin of the Hot Gas in the Galactic Halo: Testing Galactic Fountain Models. X-Ray Emission \|Henley, David B., Shelton, Robin L., et al. \| ApJ \| 800-102 \| 2015 \| 2015ApJ...800..102H \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...800..102H 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 Revisiting the relationship between 6 mum and 2-10 keV continuum luminosities of AGN \|Mateos, S., Carrera, F. J., et al. \| MNRAS \| 449-1422 \| 2015 \| 2015MNRAS.449.1422M \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.449.1422M A spectral-timing model for ULXs in the supercritical regime \|Middleton, Matthew J., Heil, Lucy, et al. \| MNRAS \| 447-3243 \| 2015 \| 2015MNRAS.447.3243M \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.447.3243M 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 Searching for coherent pulsations in ultraluminous X-ray sources \|Doroshenko, V., Santangelo, A., \| A&A \| 579-22 \| 2015 \| 2015A&A...579A..22D \| http://ui.adsabs.harvard.edu/#abs/2015A&A...579A..22D 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 Pulsator-like Spectra from Ultraluminous X-Ray Sources and the Search for More Ultraluminous Pulsars \|Pintore, F., Zampieri, L., et al. \| ApJ \| 836-113 \| 2017 \| 2017ApJ...836..113P \| http://ui.adsabs.harvard.edu/#abs/2017ApJ...836..113P AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton \|Svoboda, J., Guainazzi, M., \| A&A \| 603-127 \| 2017 \| 2017A&A...603A.127S \| http://ui.adsabs.harvard.edu/#abs/2017A&A...603A.127S ULX spectra revisited: Accreting, highly magnetized neutron stars as the engines of ultraluminous X-ray sources \|Koliopanos, Filippos, Vasilopoulos, Georgios, et al. \| A&A \| 608-47 \| 2017 \| 2017A&A...608A..47K \| http://ui.adsabs.harvard.edu/#abs/2017A&A...608A..47K The WISSH quasars project. III. X-ray properties of hyper-luminous quasars \|Martocchia, S., Piconcelli, E., et al. \| A&A \| 608-51 \| 2017 \| 2017A&A...608A..51M \| http://ui.adsabs.harvard.edu/#abs/2017A&A...608A..51M Searching for outflows in ultraluminous X-ray sources through high-resolution X-ray spectroscopy \|Kosec, P., Pinto, C., et al. \| MNRAS \| 473-5680 \| 2018 \| 2018MNRAS.473.5680K \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.473.5680K 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 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 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 A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). II. Physical Properties Derived from the SED Fitting with Optical, Infrared, and Radio Data \|Toba, Yoshiki, Yamashita, Takuji, et al. \| ApJS \| 243-15 \| 2019 \| 2019ApJS..243...15T \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..243...15T 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 Thermal stability of winds driven by radiation pressure in super-Eddington accretion discs \|Pinto, C., Mehdipour, M., et al. \| MNRAS \| 491-5702 \| 2020 \| 2020MNRAS.491.5702P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.491.5702P 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 A Comparison of X-Ray Photon Indices among the Narrow- and Broad-line Seyfert 1 Galaxies \|Ojha, Vineet, Chand, Hum, et al. \| ApJ \| 896-95 \| 2020 \| 2020ApJ...896...95O \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...896...95O 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 Constraining the Milky Way Mass with Its Hot Gaseous Halo \|Guo, Fulai, Zhang, Ruiyu, \| ApJ \| 904-14 \| 2020 \| 2020ApJ...904L..14G \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...904L..14G 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 Linking Soft Excess in Ultraluminous X-Ray Sources with Optically Thick Wind Driven by Supercritical Accretion \|Qiu, Yanli, Feng, Hua, \| ApJ \| 906-36 \| 2021 \| 2021ApJ...906...36Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...906...36Q 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 Discovery of a recurrent spectral evolutionary cycle in the ultra-luminous X-ray sources Holmberg II X-1 and NGC 5204 X-1 \|G\\u00farpide, A., Godet, O., et al. \| A&A \| 654-10 \| 2021 \| 2021A&A...654A..10G \| http://ui.adsabs.harvard.edu/#abs/2021A&A...654A..10G Ionized emission and absorption in a large sample of ultraluminous X-ray sources \|Kosec, P., Pinto, C., et al. \| MNRAS \| 508-3569 \| 2021 \| 2021MNRAS.508.3569K \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.508.3569K 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 Hard X-Ray to Radio Multiwavelength SED Analysis of Local U/LIRGs in the GOALS Sample with a Self-consistent AGN Model including a Polar-dust Component \|Yamada, Satoshi, Ueda, Yoshihiro, et al. \| ApJS \| 265-37 \| 2023 \| 2023ApJS..265...37Y \| http://ui.adsabs.harvard.edu/#abs/2023ApJS..265...37Y Winds in ultraluminous X\\u2011ray sources: New challenges \|Pinto, C., Kosec, P., \| AN \| 344-20220134 \| 2023 \| 2023AN....34420134P \| http://ui.adsabs.harvard.edu/#abs/2023AN....34420134P 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	2006-11-15T20:21:34Z/2006-11-26T07:44:53Z
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	2007-12-21T00:00:00Z
Keywords	"ngc 4559 x7", "deep xmm newton", "power spectral density", "spectral soft excesses", "XMM", "imbhs operate", "accreting imbh hypothesis", "diagnostic tests", "galactic blackhole binary", "accretion disc", "NGC 4559", "kev xray spectrum", "XMM-Newton", "ngc 5204 x", "noise data", "blackhole masses"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Timothy Roberts, 2007, 'Testing the accreting intermediate-mass black hole hypothesis in two ULXs', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-9mhrney