A dataset provided by the European Space Agency

Name: Search for Proton Cyclotron Features in the Magnetar Candidate SGR1806-20
Published: 2004-10-25T00:00:00Z

Proposal ID	014821
Title	Search for Proton Cyclotron Features in the Magnetar Candidate SGR1806-20
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148210101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148210401
DOI	https://doi.org/10.5270/esa-h1igmer
Principal Investigator, PI	Dr SANDRO MEREGHETTI
Abstract	We propose a detailed spectroscopic study of the quiescent counterpartof a soft gamma-ray repeater in order to search for spectral features exploiting the unique characteristics of the EPIC detectors.SGRs might consist of young neutron stars with extremely high magnetic fields. For these magnetic fields, 10e14-10e15 G, proton cyclotron features lie in the X-ray band. Recent model atmosphere calculations predict that these features are conspicuous, EW~100 eV, and relatively broad, DeltaE/Ec~0.05-0.2.The detection of proton cyclotron features would provide decisiveevidence of the fields of magnetars.
Publications	An XMM-Newton View of the Soft Gamma Repeater SGR 1806-20: Long-Term Variability in the Pre-Giant Flare Epoch \|Mereghetti S. Tiengo A. et al. \| ApJ \| 628-938 \| 2005 \| 2005ApJ...628..938M \| http://ui.adsabs.harvard.edu/#abs/2005ApJ...628..938M The Prelude to and Aftermath of the Giant Flare of 2004 December 27: Persistent and Pulsed X-Ray Properties of SGR 1806-20 from 1993 to 2005 \|Woods Peter M. Kouveliotou Chryssa et al. \| ApJ \| 654-470 \| 2007 \| 2007ApJ...654..470W \| http://ui.adsabs.harvard.edu/#abs/2007ApJ...654..470W 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 X-ray spectra from magnetar candidates - III. Fitting SGR/AXP soft X-ray emission with non-relativistic Monte Carlo models \|Zane S. Rea N. et al. \| MNRAS \| 398-1403 \| 2009 \| 2009MNRAS.398.1403Z \| http://ui.adsabs.harvard.edu/#abs/2009MNRAS.398.1403Z The broad-band spectrum of the persistent emission from SGR 1806-20 \|Molkov S. Hurley K. et al. \| A&A \| 433-13 \| 2005 \| 2005A&A...433L..13M \| http://ui.adsabs.harvard.edu/#abs/2005A&A...433L..13M The calm after the storm: XMM-Newton observation of SGR 1806-20 two months after the Giant Flare of 2004 December 27 \|Tiengo A. Esposito P. et al. \| A&A \| 440-63 \| 2005 \| 2005A&A...440L..63T \| http://ui.adsabs.harvard.edu/#abs/2005A&A...440L..63T 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 Resonant Cyclotron Scattering in Magnetars Emission \|Rea N. Zane S. et al. \| ApJ \| 686-1245 \| 2008 \| 2008ApJ...686.1245R \| http://ui.adsabs.harvard.edu/#abs/2008ApJ...686.1245R XMM Newton observations of soft gamma-ray repeaters \|Mereghetti Sandro Esposito Paolo \| Ap&SS \| 308-13 \| 2007 \| 2007Ap&SS.308...13M \| http://ui.adsabs.harvard.edu/#abs/2007Ap&SS.308...13M 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 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 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 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 The Short Bursts in SGR-1806 20 1E 1048-5937 and SGR 0501+4516 \|Qu Zhijie Li Zhaosheng et al. \| PASP \| 127-211 \| 2015 \| 2015PASP..127..211Q \| http://ui.adsabs.harvard.edu/#abs/2015PASP..127..211Q Five years of SGR 1900+14 observations with BeppoSAX \|Esposito P. Mereghetti S. et al. \| A&A \| 461-605 \| 2007 \| 2007A&A...461..605E \| http://ui.adsabs.harvard.edu/#abs/2007A&A...461..605E 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 XMM-Newton Observations of SGR 1806-20 Over Seven Years Following the 2004 Giant Flare \|Younes G. Kouveliotou C. \| ApJ \| 809-165 \| 2015 \| 2015ApJ...809..165Y \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...809..165Y 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 Uniting the Quiescent Emission and Burst Spectra of Magnetar Candidates \|Nakagawa Yujin E. Yoshida Atsumasa et al. \| PASJ \| 61-109 \| 2009 \| 2009PASJ...61..109N \| http://ui.adsabs.harvard.edu/#abs/2009PASJ...61..109N The Sleeping Monster: NuSTAR Observations of SGR 1806-20 11 Years After the Giant Flare \|Younes George Baring Matthew G. et al. \| ApJ \| 851-17 \| 2017 \| 2017ApJ...851...17Y \| http://ui.adsabs.harvard.edu/#abs/2017ApJ...851...17Y 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 Extended VHE gamma-ray emission towards SGR1806-20 LBV 1806-20 and stellar cluster Cl* 1806-20 \|H.E.S.S. Collaboration Abdalla H. et al. \| A&A \| 612-11 \| 2018 \| 2018A&A...612A..11H \| http://ui.adsabs.harvard.edu/#abs/2018A&A...612A..11H 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 strongest cosmic magnets: soft gamma-ray repeaters and anomalous X-ray pulsars \|Mereghetti Sandro \| A&ARv \| 15-225 \| 2008 \| 2008A&ARv..15..225M \| http://ui.adsabs.harvard.edu/#abs/2008A&ARv..15..225M 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 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 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	2003-04-03T13:35:27Z/2003-10-07T15:55:03Z
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	2004-10-25T00:00:00Z
Last Update	2025-01-27
Keywords	"magnetic fields", "magnetar candidate sgr1806", "EPIC", "neutron stars", "proton cyclotron", "decisive evidence", "relatively broad", "quiescent counterpart", "epic detectors", "10e14 10e15", "xray band"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr SANDRO MEREGHETTI, 2004, 'Search for Proton Cyclotron Features in the Magnetar Candidate SGR1806-20', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-h1igmer