A dataset provided by the European Space Agency

Name: Phase Resolved Soft SPectroscopy of the Isolated Neutron Star RX J0720.4-3125
Published: 2001-10-12T00:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	012410
Title	Phase Resolved Soft SPectroscopy of the Isolated Neutron Star RX J0720.4-3125
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0124100101
DOI	https://doi.org/10.5270/esa-6164h3q
Principal Investigator, PI	Dr Albert Brinkman
Abstract	RXJ0720.4-3125 is a very soft, periodically variable source(P = 8.39 sec). These characteristics, together with the absence of an optical counterpart, lead to the suggestion that this object isweak-field isolated old neutron star, accreting from the ISM.We will use the RGS to perform phase-resolved spectroscopy, using adedicated CCD read-out mode that will yield a phase resolution ofapproximately 0.1. The EPIC cameras will be used to obtain alow spectral resolution, phase resolved soft spectrum.
Publications	Long-term variability in the X-ray emission of RX J0720.4-3125 \|de Vries C. P. Vink J. et al. \| A&A \| 415-31 \| 2004 \| 2004A&A...415L..31D \| http://ui.adsabs.harvard.edu/#abs/2004A&A...415L..31D Evidence for precession of the isolated neutron star RX J0720.4-3125 \|Haberl F. Turolla R. et al. \| A&A \| 451-17 \| 2006 \| 2006A&A...451L..17H \| http://ui.adsabs.harvard.edu/#abs/2006A&A...451L..17H A self-consistent model of isolated neutron stars: the case of the X-ray pulsar RX J0720.4-3125 \|Perez-Azorin J. F. Pons J. A. et al. \| A&A \| 459-175 \| 2006 \| 2006A&A...459..175P \| http://ui.adsabs.harvard.edu/#abs/2006A&A...459..175P XMM-Newton RGS spectrum of RX J0720.4-3125: an absorption feature at 0.57 keV \|Hambaryan V. Neuhauser R. et al. \| A&A \| 497-9 \| 2009 \| 2009A&A...497L...9H \| http://ui.adsabs.harvard.edu/#abs/2009A&A...497L...9H Updated phase coherent timing solution of the isolated neutron star RX J0720.4-3125 using recent XMM-Newton and Chandra observations \|Hohle M. M. Haberl F. et al. \| A&A \| 521-11 \| 2010 \| 2010A&A...521A..11H \| http://ui.adsabs.harvard.edu/#abs/2010A&A...521A..11H 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 Narrow absorption features in the co-added XMM-Newton RGS spectra of isolated neutron stars \|Hohle M. M. Haberl F. et al. \| MNRAS \| 419-1525 \| 2012 \| 2012MNRAS.419.1525H \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.419.1525H 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 continued spectral and temporal evolution of RX J0720.4-3125 \|Hohle M. M. Haberl F. et al. \| MNRAS \| 423-1194 \| 2012 \| 2012MNRAS.423.1194H \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.1194H Spectral and temporal variations of the isolated neutron star RX J0720.4-3125: new XMM-Newton observations \|Hohle M. M. Haberl F. et al. \| A&A \| 498-811 \| 2009 \| 2009A&A...498..811H \| http://ui.adsabs.harvard.edu/#abs/2009A&A...498..811H A phase-dependent absorption line in the spectrum of the X-ray pulsar RX J0720.4-3125 \|Haberl F. Zavlin V. E. et al. \| A&A \| 419-1077 \| 2004 \| 2004A&A...419.1077H \| http://ui.adsabs.harvard.edu/#abs/2004A&A...419.1077H First XMM-Newton observations of an isolated neutron star: RX J0720.4-3125 \|Paerels F. Mori K. et al. \| A&A \| 365-298 \| 2001 \| 2001A&A...365L.298P \| http://ui.adsabs.harvard.edu/#abs/2001A&A...365L.298P Modelling the spin pulse profile of the isolated neutron star RX J0720.4-3125 observed with XMM-Newton \|Cropper M. Zane S. et al. \| A&A \| 365-302 \| 2001 \| 2001A&A...365L.302C \| http://ui.adsabs.harvard.edu/#abs/2001A&A...365L.302C Properties of the background of EPIC-pn onboard XMM-Newton \|Katayama H. Takahashi I. et al. \| A&A \| 414-767 \| 2004 \| 2004A&A...414..767K \| http://ui.adsabs.harvard.edu/#abs/2004A&A...414..767K The Continued Spectral Evolution of the Neutron Star RX J0720.4-3125 \|Vink Jacco de Vries Cor P. et al. \| ApJ \| 609-75 \| 2004 \| 2004ApJ...609L..75V \| http://ui.adsabs.harvard.edu/#abs/2004ApJ...609L..75V A Coherent Timing Solution for the Nearby Isolated Neutron Star RX J0720.4-3125 \|Kaplan D. L. van Kerkwijk M. H. \| ApJ \| 628-45 \| 2005 \| 2005ApJ...628L..45K \| http://ui.adsabs.harvard.edu/#abs/2005ApJ...628L..45K On the Lack of a Soft X-Ray Excess from Clusters of Galaxies \|Bregman Joel N. Lloyd-Davies Edward J. \| ApJ \| 644-167 \| 2006 \| 2006ApJ...644..167B \| http://ui.adsabs.harvard.edu/#abs/2006ApJ...644..167B Timing analysis of the isolated neutron star RX J0720.4-3125 \|Zane Silvia Haberl Frank et al. \| MNRAS \| 334-345 \| 2002 \| 2002MNRAS.334..345Z \| http://ui.adsabs.harvard.edu/#abs/2002MNRAS.334..345Z AXPs and X-ray-dim isolated neutron stars: recent XMM-Newton and Chandra results \|Haberl F. \| AdSpR \| 33-638 \| 2004 \| 2004AdSpR..33..638H \| http://ui.adsabs.harvard.edu/#abs/2004AdSpR..33..638H Thermal emission from isolated neutron stars and their surface magnetic field: Going quadrupolar? \|Zane S. Turolla R. \| AdSpR \| 35-1162 \| 2005 \| 2005AdSpR..35.1162Z \| http://ui.adsabs.harvard.edu/#abs/2005AdSpR..35.1162Z New photometry and astrometry of the isolated neutron star RX J0720.4-3125 using recent VLT/FORS observations \|Eisenbeiss T. Ginski C. et al. \| AN \| 331-243 \| 2010 \| 2010AN....331..243E \| http://ui.adsabs.harvard.edu/#abs/2010AN....331..243E The magnificent seven: magnetic fields and surface temperature distributions \|Haberl Frank \| Ap&SS \| 308-181 \| 2007 \| 2007Ap&SS.308..181H \| http://ui.adsabs.harvard.edu/#abs/2007Ap&SS.308..181H First science results from XMM and Chandra \|Charles P. A. \| Obs \| 122-77 \| 2002 \| 2002Obs...122...77C \| http://ui.adsabs.harvard.edu/#abs/2002Obs...122...77C 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 Timing analysis of the isolated neutron star RX J0720.4-3125 revisited \|Cropper Mark Haberl Frank et al. \| MNRAS \| 351-1099 \| 2004 \| 2004MNRAS.351.1099C \| http://ui.adsabs.harvard.edu/#abs/2004MNRAS.351.1099C Unveiling the thermal and magnetic map of neutron star surfaces though their X-ray emission: method and light-curve analysis \|Zane Silvia Turolla Roberto \| MNRAS \| 366-727 \| 2006 \| 2006MNRAS.366..727Z \| http://ui.adsabs.harvard.edu/#abs/2006MNRAS.366..727Z 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 Towards self-consistent models of isolated neutron stars \|Pons J. A. Perez-Azorin J. F. et al. \| Ap&SS \| 308-247 \| 2007 \| 2007Ap&SS.308..247P \| http://ui.adsabs.harvard.edu/#abs/2007Ap&SS.308..247P 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 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 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 Discovery of a Strongly Phase-variable Spectral Feature in the Isolated Neutron Star RX J0720.4-3125 \|Borghese A. Rea N. et al. \| ApJ \| 807-20 \| 2015 \| 2015ApJ...807L..20B \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...807L..20B 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 The Magnificent Seven in the dusty prairie \|Posselt B. Popov S. B. et al. \| Ap&SS \| 308-171 \| 2007 \| 2007Ap&SS.308..171P \| http://ui.adsabs.harvard.edu/#abs/2007Ap&SS.308..171P The compactness of the isolated neutron star RX J0720.4-3125 \|Hambaryan V. Suleimanov V. et al. \| A&A \| 601-108 \| 2017 \| 2017A&A...601A.108H \| http://ui.adsabs.harvard.edu/#abs/2017A&A...601A.108H A Simple Pile-up Model for Time Series Analysis \|Sevilla Diego J. R. \| ApJ \| 843-44 \| 2017 \| 2017ApJ...843...44S \| http://ui.adsabs.harvard.edu/#abs/2017ApJ...843...44S 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 In-orbit performance of the soft X-ray imaging system aboard Hitomi (ASTRO-H) \|Nakajima Hiroshi Maeda Yoshitomo et al. \| PASJ \| 70-21 \| 2018 \| 2018PASJ...70...21N \| http://ui.adsabs.harvard.edu/#abs/2018PASJ...70...21N 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 Cyclotron lines in highly magnetized neutron stars \|Staubert R. Trumper J. et al. \| A&A \| 622-61 \| 2019 \| 2019A&A...622A..61S \| http://ui.adsabs.harvard.edu/#abs/2019A&A...622A..61S Universal detection of high-temperature emission in X-ray isolated neutron stars \|Yoneyama Tomokage Hayashida Kiyoshi et al. \| PASJ \| 71-17 \| 2019 \| 2019PASJ...71...17Y \| http://ui.adsabs.harvard.edu/#abs/2019PASJ...71...17Y 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 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 Probing the inner Galactic halo with blue horizontal-branch stars. 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Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2000-05-13T01:42:22Z/2000-05-13T20:00:08Z
Version	21.51_20241115_1113
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	2001-10-12T00:00:00Z
Last Update	2026-07-09
Keywords	"neutron star", "low spectral resolution", "epic cameras", "optical counterpart", "EPIC", "dedicated ccd read", "periodically variable source", "phase resolution", "J0720.4", "weak field isolated"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Albert Brinkman, 2001, 'Phase Resolved Soft SPectroscopy of the Isolated Neutron Star RX J0720.4-3125', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-6164h3q
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.