A dataset provided by the European Space Agency

Name: UNDERSTANDING THE HIGH ENERGY FLARING ACTIVITY OF THE GALACTIC NUCLEUS
Published: 2006-05-19T00:00:00Z

Proposal ID	020267
Title	UNDERSTANDING THE HIGH ENERGY FLARING ACTIVITY OF THE GALACTIC NUCLEUS
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202670501 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202670601 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202670701 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202670801
DOI	https://doi.org/10.5270/esa-k7eg6by
Principal Investigator, PI	Dr ANDREA GOLDWURM
Abstract	We propose to carry out a large (550 ks) XMM-Newton monitoring program of SgrA$^$, the radiative manifestation of the putative massive black hole at thegalactic center, to study in detail the broad band spectrum and timingproperties of the source during its X-ray flaring activity. The program will beperformed in coordination with INTEGRAL gamma-ray observations of the galacticcenter and with observations at lower frequencies. Although the galactic nucleushosts the nearest and probably best studied massive black hole its physical andradiative properties and in particular its low level of high energy emission arestill little understood. The discovery of bright X-ray flares from Sgr~A withChandra and XMM-Newton
Publications	X-ray hiccups from Sagittarius A* observed by XMM-Newton. The second brightest flare and three moderate flares caught in half a day \|Porquet D. Grosso N. et al. \| A&A \| 488-549 \| 2008 \| 2008A&A...488..549P \| http://ui.adsabs.harvard.edu/#abs/2008A&A...488..549P Discovery of a Superluminal Fe K Echo at the Galactic Center: The Glorious Past of Sgr A* Preserved by Molecular Clouds \|Ponti G. Terrier R. et al. \| ApJ \| 714-732 \| 2010 \| 2010ApJ...714..732P \| http://ui.adsabs.harvard.edu/#abs/2010ApJ...714..732P 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 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 Bursting behavior of the Galactic center faint X-ray transient GRS 1741.9-2853 \|Trap G. Falanga M. et al. \| A&A \| 504-501 \| 2009 \| 2009A&A...504..501T \| http://ui.adsabs.harvard.edu/#abs/2009A&A...504..501T Discovery of X-ray eclipses from the transient source CXOGC J174540.0-290031 with XMM-Newton \|Porquet D. Grosso N. et al. \| A&A \| 443-571 \| 2005 \| 2005A&A...443..571P \| http://ui.adsabs.harvard.edu/#abs/2005A&A...443..571P Repeated X-Ray Flaring Activity in Sagittarius A* \|Belanger G. Goldwurm A. et al. \| ApJ \| 635-1095 \| 2005 \| 2005ApJ...635.1095B \| http://ui.adsabs.harvard.edu/#abs/2005ApJ...635.1095B A Persistent High-Energy Flux from the Heart of the Milky Way: INTEGRALs View of the Galactic Center \|Belanger G. Goldwurm A. et al. \| ApJ \| 636-275 \| 2006 \| 2006ApJ...636..275B \| http://ui.adsabs.harvard.edu/#abs/2006ApJ...636..275B A Multiwavelength Study of Sgr A: The Role of Near-IR Flares in Production of X-Ray Soft gamma-Ray and Submillimeter Emission \|Yusef-Zadeh F. Bushouse H. et al. \| ApJ \| 644-198 \| 2006 \| 2006ApJ...644..198Y \| http://ui.adsabs.harvard.edu/#abs/2006ApJ...644..198Y General Relativistic Flux Modulations from Disk Instabilities in Sagittarius A \|Falanga Maurizio Melia Fulvio et al. \| ApJ \| 662-15 \| 2007 \| 2007ApJ...662L..15F \| http://ui.adsabs.harvard.edu/#abs/2007ApJ...662L..15F Discovery and Interpretation of an X-Ray Period in the Galactic Center Source CXOGC J174536.1-285638 \|Mikles Valerie J. Eikenberry Stephen S. et al. \| ApJ \| 689-1222 \| 2008 \| 2008ApJ...689.1222M \| http://ui.adsabs.harvard.edu/#abs/2008ApJ...689.1222M Discovery of X-ray flaring activity in the Arches cluster \|Capelli R. Warwick R. S. et al. \| A&A \| 525-2 \| 2011 \| 2011A&A...525L...2C \| http://ui.adsabs.harvard.edu/#abs/2011A&A...525L...2C Fe Kalpha line emission from the Arches cluster region - evidence for ongoing particle bombardment? \|Capelli R. Warwick R. S. et al. \| A&A \| 530-38 \| 2011 \| 2011A&A...530A..38C \| http://ui.adsabs.harvard.edu/#abs/2011A&A...530A..38C 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 The X-ray lightcurve of Sagittarius A* over the past 150 years inferred from Fe-Kalpha line reverberation in Galactic centre molecular clouds \|Capelli R. Warwick R. S. et al. \| A&A \| 545-35 \| 2012 \| 2012A&A...545A..35C \| http://ui.adsabs.harvard.edu/#abs/2012A&A...545A..35C 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 Nonthermal X-rays from low-energy cosmic rays: application to the 6.4 keV line emission from the Arches cluster region \|Tatischeff V. Decourchelle A. \| A&A \| 546-88 \| 2012 \| 2012A&A...546A..88T \| http://ui.adsabs.harvard.edu/#abs/2012A&A...546A..88T 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 Hot stars observed by XMM-Newton. I. The catalog and the properties of OB stars \|Naze Y. \| A&A \| 506-1055 \| 2009 \| 2009A&A...506.1055N \| http://ui.adsabs.harvard.edu/#abs/2009A&A...506.1055N 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 The discovery of the 401 Hz accreting millisecond pulsar IGR J17498-2921 in a 3.8 h orbit \|Papitto A. Bozzo E. et al. \| A&A \| 535-4 \| 2011 \| 2011A&A...535L...4P \| http://ui.adsabs.harvard.edu/#abs/2011A&A...535L...4P XMM-Newton observations of the Galactic Centre Region - I. The distribution of low-luminosity X-ray sources \|Heard V. Warwick R. S. \| MNRAS \| 428-3462 \| 2013 \| 2013MNRAS.428.3462H \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.428.3462H XMM-Newton observations of the Galactic Centre Region - II. The soft-thermal emission \|Heard V. Warwick R. S. \| MNRAS \| 434-1339 \| 2013 \| 2013MNRAS.434.1339H \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.434.1339H A Strongly Magnetized Pulsar within the Grasp of the Milky Ways Supermassive Black Hole \|Rea N. Esposito P. et al. \| ApJ \| 775-34 \| 2013 \| 2013ApJ...775L..34R \| http://ui.adsabs.harvard.edu/#abs/2013ApJ...775L..34R 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 The Peculiar Galactic Center Neutron Star X-Ray Binary XMM J174457-2850.3 \|Degenaar N. Wijnands R. et al. \| ApJ \| 792-109 \| 2014 \| 2014ApJ...792..109D \| http://ui.adsabs.harvard.edu/#abs/2014ApJ...792..109D Variation of the X-ray non-thermal emission in the Arches cloud \|Clavel M. Soldi S. et al. \| MNRAS \| 443-129 \| 2014 \| 2014MNRAS.443L.129C \| http://ui.adsabs.harvard.edu/#abs/2014MNRAS.443L.129C 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 Fe K absorption - accretion state connection in the Galactic Centre neutron star X-ray binary AX J1745.6-2901 \|Ponti G. Bianchi S. et al. \| MNRAS \| 446-1536 \| 2015 \| 2015MNRAS.446.1536P \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.446.1536P 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 Discovery of a 3.5 keV line in the Galactic Centre and a critical look at the origin of the line across astronomical targets \|Jeltema Tesla Profumo Stefano \| MNRAS \| 450-2143 \| 2015 \| 2015MNRAS.450.2143J \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.450.2143J Sunyaev-Zeldovich 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 The XMM-Newton view of the central degrees of the Milky Way \|Ponti G. Morris M. R. et al. \| MNRAS \| 453-172 \| 2015 \| 2015MNRAS.453..172P \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.453..172P Fifteen years of XMM-Newton and Chandra monitoring of Sgr A: evidence for a recent increase in the bright flaring rate \|Ponti G. De Marco B. et al. \| MNRAS \| 454-1525 \| 2015 \| 2015MNRAS.454.1525P \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.454.1525P Checking the Dark Matter Origin of a 3.53 keV Line with the Milky Way Center \|Boyarsky A. Franse J. et al. \| PhRvL \| 115-161301 \| 2015 \| 2015PhRvL.115p1301B \| http://ui.adsabs.harvard.edu/#abs/2015PhRvL.115p1301B Where do the 3.5 keV photons come from? A morphological study of the Galactic Center and of Perseus \|Carlson Eric Jeltema Tesla \| JCAP \| 2-9 \| 2015 \| 2015JCAP...02..009C \| http://ui.adsabs.harvard.edu/#abs/2015JCAP...02..009C TeV Gamma-Ray Observations of the Galactic Center Ridge by VERITAS \|Archer A. Benbow W. et al. \| ApJ \| 821-129 \| 2016 \| 2016ApJ...821..129A \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...821..129A High ionisation absorption in low mass X-ray binaries \|Ponti G. Bianchi S. et al. \| AN \| 337-512 \| 2016 \| 2016AN....337..512P \| http://ui.adsabs.harvard.edu/#abs/2016AN....337..512P NuSTAR Hard X-Ray Survey of the Galactic Center Region. II. X-Ray Point Sources \|Hong JaeSub Mori Kaya et al. \| ApJ \| 825-132 \| 2016 \| 2016ApJ...825..132H \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...825..132H The Chandra ACIS Timing Survey Project: glimpsing a sample of faint X-ray pulsators \|Israel G. L. Esposito P. et al. \| MNRAS \| 462-4371 \| 2016 \| 2016MNRAS.462.4371I \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.462.4371I 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 Not that long time ago in the nearest galaxy: 3D slice of molecular gas revealed by a 110 yr old flare of Sgr A \|Churazov E. Khabibullin I. et al. \| MNRAS \| 465-45 \| 2017 \| 2017MNRAS.465...45C \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.465...45C Polarization and long-term variability of Sgr A* X-ray echo \|Churazov E. Khabibullin I. et al. \| MNRAS \| 468-165 \| 2017 \| 2017MNRAS.468..165C \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.468..165C Sixteen years of X-ray monitoring of Sagittarius A: Evidence for a decay of the faint flaring rate from 2013 August 13 months before a rise in the bright flaring rate \|Mossoux Enmanuelle Grosso Nicolas \| A&A \| 604-85 \| 2017 \| 2017A&A...604A..85M \| http://ui.adsabs.harvard.edu/#abs/2017A&A...604A..85M Can Sgr A flares reveal the molecular gas density PDF? \|Churazov E. Khabibullin I. et al. \| MNRAS \| 471-3293 \| 2017 \| 2017MNRAS.471.3293C \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.471.3293C A transient flat spectrum radio pulsar near the Galactic Centre \|Dexter J. Degenaar N. et al. \| MNRAS \| 468-1486 \| 2017 \| 2017MNRAS.468.1486D \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.468.1486D A 149 min periodicity underlies the X-ray flaring of Sgr A* \|Leibowitz Elia \| MNRAS \| 474-3380 \| 2018 \| 2018MNRAS.474.3380L \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.474.3380L 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 An X-ray survey of the central molecular zone: Variability of the Fe Kalpha emission line \|Terrier R. Clavel M. et al. \| A&A \| 612-102 \| 2018 \| 2018A&A...612A.102T \| http://ui.adsabs.harvard.edu/#abs/2018A&A...612A.102T 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 X-ray chimneys in the Galactic Centre \|Chernyakova Masha \| Natur \| 567-318 \| 2019 \| 2019Natur.567..318C \| http://ui.adsabs.harvard.edu/#abs/2019Natur.567..318C An X-ray chimney extending hundreds of parsecs above and below the Galactic Centre \|Ponti G. Hofmann F. et al. \| Natur \| 567-347 \| 2019 \| 2019Natur.567..347P \| http://ui.adsabs.harvard.edu/#abs/2019Natur.567..347P 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 A Rapidly Varying Red Supergiant X-Ray Binary in the Galactic Center \|Gottlieb Amy M. Eikenberry Stephen S. et al. \| ApJ \| 896-32 \| 2020 \| 2020ApJ...896...32G \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...896...32G The EXOD search for faint transients in XMM-Newton observations: Method and discovery of four extragalactic Type I X-ray bursters \|Pastor-Marazuela I. Webb N. A. et al. \| A&A \| 640-124 \| 2020 \| 2020A&A...640A.124P \| http://ui.adsabs.harvard.edu/#abs/2020A&A...640A.124P The Galactic center chimneys: the base of the multiphase outflow of the Milky Way \|Ponti G. Morris M. R. et al. \| A&A \| 646-66 \| 2021 \| 2021A&A...646A..66P \| http://ui.adsabs.harvard.edu/#abs/2021A&A...646A..66P 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 EXTraS project: Exploring the X-ray transient and variable sky \|De Luca A. Salvaterra R. et al. \| A&A \| 650-167 \| 2021 \| 2021A&A...650A.167D \| http://ui.adsabs.harvard.edu/#abs/2021A&A...650A.167D Traces of Past Activity in the Galactic Centre \|Ponti Gabriele Morris Mark R. et al. \| ASSP \| 34-331 \| 2013 \| 2013ASSP...34..331P \| http://ui.adsabs.harvard.edu/#abs/2013ASSP...34..331P Tracing the Milky Ways Vestigial Nuclear Jet \|Cecil Gerald Wagner Alexander Y. et al. \| ApJ \| 922-254 \| 2021 \| 2021ApJ...922..254C \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...922..254C SRG/eROSITA view of X-ray reflection in the Central Molecular Zone: a snapshot in September-October 2019 \|Khabibullin Ildar Churazov Eugene \| MNRAS \| 509-6068 \| 2022 \| 2022MNRAS.509.6068K \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.509.6068K The episodic and multiscale Galactic Centre \|Bryant Aaron Krabbe Alfred \| NewAR \| 93-101630 \| 2021 \| 2021NewAR..9301630B \| http://ui.adsabs.harvard.edu/#abs/2021NewAR..9301630B Constraining particle acceleration in Sgr A^u22c6 with simultaneous GRAVITY Spitzer NuSTAR and Chandra observations \|GRAVITY Collaboration Abuter R. et al. \| A&A \| 654-22 \| 2021 \| 2021A&A...654A..22G \| http://ui.adsabs.harvard.edu/#abs/2021A&A...654A..22G X-ray astronomy comes of age \|Wilkes Belinda J. Tucker Wallace et al. \| Natur \| 606-261 \| 2022 \| 2022Natur.606..261W \| http://ui.adsabs.harvard.edu/#abs/2022Natur.606..261W X-ray polarization evidence for a 200-year-old flare of Sgr A^* \|Marin Fru00e9du00e9ric Churazov Eugene et al. \| Natur \| 619-41 \| 2023 \| 2023Natur.619...41M \| http://ui.adsabs.harvard.edu/#abs/2023Natur.619...41M Scientific objectives of the Hot Universe Baryon Surveyor (HUBS) mission \|Bregman Joel Cen Renyue et al. \| SCPMA \| 66-299513 \| 2023 \| 2023SCPMA..6699513B \| http://ui.adsabs.harvard.edu/#abs/2023SCPMA..6699513B Iron Ku03b1 echoes from the circumnuclear disk orbiting Sgr A^u22c6 \|Stel Giovanni Ponti Gabriele \| A&A \| 679-44 \| 2023 \| 2023A&A...679A..44S \| http://ui.adsabs.harvard.edu/#abs/2023A&A...679A..44S The STATiX pipeline for the detection of X-ray transients in three dimensions \|Ruiz A. Georgakakis A. et al. \| MNRAS \| 527-3674 \| 2024 \| 2024MNRAS.527.3674R \| http://ui.adsabs.harvard.edu/#abs/2024MNRAS.527.3674R The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way \|Sarkar Kartick C. \| A&ARv \| 32-1 \| 2024 \| 2024A&ARv..32....1S \| http://ui.adsabs.harvard.edu/#abs/2024A&ARv..32....1S Was There a 3.5 keV Line? \|Dessert Christopher Foster Joshua W. et al. \| ApJ \| 964-185 \| 2024 \| 2024ApJ...964..185D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...964..185D 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	2004-03-28T15:03:52Z/2004-09-03T16:35:35Z
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	2006-05-19T00:00:00Z
Last Update	2025-01-27
Keywords	"radiative properties", "XMM", "galactic nucleus", "xmm newton", "xray flaring activity", "XMM-Newton", "bright xray flare", "low level", "energy emission", "radiative manifestation", "integral gamma ray", "broad band spectrum", "massive blackhole", "energy flaring activity", "lower frequencies", "galactic center", "galactic nucleus hosts"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr ANDREA GOLDWURM, 2006, 'UNDERSTANDING THE HIGH ENERGY FLARING ACTIVITY OF THE GALACTIC NUCLEUS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-k7eg6by