A dataset provided by the European Space Agency

Name: A Search for X-ray Reverberation in the Ultraluminous X-ray Source NGC 5408 X-1
Published: 2015-03-04T23:00:00Z

Proposal ID	072313
Title	A Search for X-ray Reverberation in the Ultraluminous X-ray Source NGC 5408 X-1
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0723130301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0723130401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0723130501
DOI	https://doi.org/10.5270/esa-ywf1sou
Principal Investigator, PI	Dr Tod Strohmayer
Abstract	We propose simultaneous optical (VLT/FORS2) and X-ray (XMM-Newton) observationsof the ultraluminous X-ray source (ULX) NGC 5408 X-1 (hereafter X-1) in order tosearch for the signatures of X-ray reprocessing in its accretion disk. Ourproposed observations will enable the first sensitive search for X-ray - opticalcorrelations in a ULX and will address key questions regarding the nature of theaccretor in X-1. For example, detection of an X-ray -- optical correlation, asignature of reprocessing, will establish that the optical flux is largelyproduced in the accretion disk and not the companion star. Measurement of X-rayoptical time lags can lead to a mass estimate via the techniques ofreverberation mapping.
Publications	X-ray time lags and non-linear variability in the ultraluminous X-ray sources NGC 5408 X-1 and NGC 6946 X-1 \|Hernandez-Garcia L. Vaughan S. et al. \| MNRAS \| 453-2877 \| 2015 \| 2015MNRAS.453.2877H \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.453.2877H First Search for an X-Ray--Optical Reverberation Signal in an Ultraluminous X-Ray Source \|Pasham Dheeraj R. Strohmayer Tod E. et al. \| ApJ \| 818-85 \| 2016 \| 2016ApJ...818...85P \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...818...85P 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 Ultraluminous X-ray sources with flat-topped noise and QPO \|Atapin Kirill Fabrika Sergei \| MNRAS \| 486-2766 \| 2019 \| 2019MNRAS.486.2766A \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.486.2766A Linking Soft Excess in Ultraluminous X-Ray Sources with Optically Thick Wind Driven by Supercritical Accretion \|Qiu Yanli Feng Hua \| ApJ \| 906-36 \| 2021 \| 2021ApJ...906...36Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...906...36Q 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 Long-term X-ray spectral evolution of ultraluminous X-ray sources: implications on the accretion flow geometry and the nature of the accretor \|Gu00farpide A. Godet O. et al. \| A&A \| 649-104 \| 2021 \| 2021A&A...649A.104G \| http://ui.adsabs.harvard.edu/#abs/2021A&A...649A.104G Unveiling the accretion scenario of BH-ULXs using XMM-Newton observations \|Majumder Seshadri Das Santabrata et al. \| MNRAS \| 526-2086 \| 2023 \| 2023MNRAS.526.2086M \| http://ui.adsabs.harvard.edu/#abs/2023MNRAS.526.2086M 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	2014-02-11T00:29:41Z/2014-02-13T10:23:35Z
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	2015-03-04T23:00:00Z
Last Update	2025-01-27
Keywords	"accretion disk", "optical vlt", "NGC 5408", "xray optical correlation", "xray reverberation", "reverberation mapping", "XMM-Newton", "companion star", "hereafter x", "xray reprocessing", "xray optical correlations", "XMM", "optical flux", "sensitive search", "xray xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Tod Strohmayer, 2015, 'A Search for X-ray Reverberation in the Ultraluminous X-ray Source NGC 5408 X-1', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ywf1sou