A dataset provided by the European Space Agency

Name: Spectral and temporal variations of the X-ray pulsar RX J0720.4-3125
Published: 2012-10-18T00:00:00Z

Proposal ID	067070
Title	Spectral and temporal variations of the X-ray pulsar RX J0720.4-3125
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0670700201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0670700301
DOI	https://doi.org/10.5270/esa-1xco2fz
Principal Investigator, PI	Mr Markus Hohle
Abstract	RX J0720.4-3125 belongs to a group of seven isolated and radio-quiet X-raypulsars discovered during the ROSAT all sky survey; the so called MagnificentSeven (M7). Among them, RX J0720.4-3125 occupies an unique place inasmuch itexhibits spectral and temporal variations on time scales of years that are notseen for the other M7. These variations could be the result of a sudden event(e.g. a glitch), or they are periodic in nature, e.g. caused by free recession.In either case one expects to see further spectral/temporal evolution. Applyinga timing solution with constant spin-down ($dot{P}$) to RX J0720.4-3125 leads tolarge variable phase residuals with a sinusoidal pattern (but having two humpsof different heights) and a variable phase lag abridge
Publications	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 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 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 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 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 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 Hard X-Ray Excess from the Magnificent Seven Neutron Stars \|Dessert Christopher Foster Joshua W. \| ApJ \| 904-42 \| 2020 \| 2020ApJ...904...42D \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...904...42D Axion Emission Can Explain a New Hard X-Ray Excess from Nearby Isolated Neutron Stars \|Buschmann Malte Co Raymond T. et al. \| PhRvL \| 126-21102 \| 2021 \| 2021PhRvL.126b1102B \| http://ui.adsabs.harvard.edu/#abs/2021PhRvL.126b1102B 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 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	2011-05-02T23:25:17Z/2011-10-01T11:15:58Z
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	2012-10-18T00:00:00Z
Last Update	2025-01-27
Keywords	"sky survey", "3125 belongs", "temporal evolution", "rx j0720", "sinusoidal pattern", "variable phase lag", "constant spin", "variable phase residuals", "3125 leads", "ROSAT", "free recession", "3125 occupies", "sudden event", "J0720.4", "M7", "temporal variations", "time scales"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Mr Markus Hohle, 2012, 'Spectral and temporal variations of the X-ray pulsar RX J0720.4-3125', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1xco2fz