A dataset provided by the European Space Agency

Name: ORIGIN OF THE X-RAY EMISSION OF THE GALACTIC CENTRE MOLECULAR CLOUD SGR B2
Published: 2005-09-26T00:00:00Z

Proposal ID	020393
Title	ORIGIN OF THE X-RAY EMISSION OF THE GALACTIC CENTRE MOLECULAR CLOUD SGR B2
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0203930101
DOI	https://doi.org/10.5270/esa-8w81lmh
Principal Investigator, PI	Dr ANNE DECOURCHELLE
Abstract	We propose a 40 ks XMM-Newton observation of the molecular cloud Sgr B2 locatedin the Galactic Centre. Our aims are to map and characterize both the iron Kline emission at 6.4 keV (line energy and linewidth) as well as its associatedcontinuum (intensity and shape) to determine the nature of this emission:fluorescence due to irradiation by hard X-rays of molecular clouds orinteraction of suprathermal electrons with the molecular gas and/or with the hotplasma at cloud boundaries ? This is a key issue for understanding the highenergy diffuse emission from the Galactic Centre and Sgr B2 is the best locationto carry out this study, as it exhibits the brightest 6.4 keV iron K lineemission in the Galactic Centre, and the weakest diffuse thermal line emission.
Publications	Fading Hard X-ray Emission from the Galactic Center Molecular Cloud Sgr B2 \|Terrier R. Ponti G. et al. \| ApJ \| 719-143 \| 2010 \| 2010ApJ...719..143T \| http://ui.adsabs.harvard.edu/#abs/2010ApJ...719..143T 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 A Search for New Galactic Magnetars in Archival Chandra and XMM-Newton Observations \|Muno M. P. Gaensler B. M. et al. \| ApJ \| 680-639 \| 2008 \| 2008ApJ...680..639M \| http://ui.adsabs.harvard.edu/#abs/2008ApJ...680..639M 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 Discoveries of Diffuse Iron Line Sources from the Sgr B Region \|Koyama Katsuji Inui Tatsuya et al. \| PASJ \| 59-221 \| 2007 \| 2007PASJ...59S.221K \| http://ui.adsabs.harvard.edu/#abs/2007PASJ...59S.221K 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 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 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 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 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 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 Hard X-Ray Morphological and Spectral Studies of the Galactic Center Molecular Cloud Sgr B2: Constraining Past Sgr A* Flaring Activity \|Zhang Shuo Hailey Charles J. et al. \| ApJ \| 815-132 \| 2015 \| 2015ApJ...815..132Z \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...815..132Z Examining molecular clouds in the Galactic Centre region using X-ray reflection spectra simulations \|Walls M. Chernyakova M. et al. \| MNRAS \| 463-2893 \| 2016 \| 2016MNRAS.463.2893W \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.463.2893W 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 Dust scattering X-ray expanding rings around gamma-ray bursts \|Mereghetti S. Tiengo A. \| NCimB \| 121-1111 \| 2006 \| 2006NCimB.121.1111M \| http://ui.adsabs.harvard.edu/#abs/2006NCimB.121.1111M Time Variability of the Neutral Iron Lines from the Sagittarius B2 Region and Its Implication of a Past Outburst of Sagittarius A \|Inui Tatsuya Koyama Katsuji et al. \| PASJ \| 61-241 \| 2009 \| 2009PASJ...61S.241I \| http://ui.adsabs.harvard.edu/#abs/2009PASJ...61S.241I Diffuse X-ray sky in the Galactic center \|Koyama Katsuji \| PASJ \| 70-1 \| 2018 \| 2018PASJ...70R...1K \| http://ui.adsabs.harvard.edu/#abs/2018PASJ...70R...1K 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 On the Effects of UV Photons/X-Rays on the Chemistry of the Sgr B2 Cloud \|Armijos-Abendau00f1o J. Martu00edn-Pintado J. et al. \| ApJ \| 895-57 \| 2020 \| 2020ApJ...895...57A \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...895...57A 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 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 The episodic and multiscale Galactic Centre \|Bryant Aaron Krabbe Alfred \| NewAR \| 93-101630 \| 2021 \| 2021NewAR..9301630B \| http://ui.adsabs.harvard.edu/#abs/2021NewAR..9301630B New Constraints on Cosmic Particle Populations at the Galactic Center Using X-Ray Observations of the Molecular Cloud Sagittarius B2 \|Rogers Field Zhang Shuo et al. \| ApJ \| 934-19 \| 2022 \| 2022ApJ...934...19R \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...934...19R 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 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 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 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	2004-09-04T02:52:56Z/2004-09-04T17:01:34Z
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	2005-09-26T00:00:00Z
Last Update	2025-01-27
Keywords	"energy diffuse emission", "kev iron", "galactic centre", "hard xray", "xmm newton", "continuum intensity", "XMM-Newton", "suprathermal electrons", "molecular gas", "hot plasma", "xray emission", "line emission", "XMM", "molecular clouds", "cloud boundaries", "kev line energy", "key issue", "sgr b2"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr ANNE DECOURCHELLE, 2005, 'ORIGIN OF THE X-RAY EMISSION OF THE GALACTIC CENTRE MOLECULAR CLOUD SGR B2', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-8w81lmh