A dataset provided by the European Space Agency

Name: A detailed look at an understudied ULX QPO
Published: 2013-11-07T00:00:00Z

Proposal ID	069157
Title	A detailed look at an understudied ULX QPO
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0691570101
DOI	https://doi.org/10.5270/esa-af0d1cu
Principal Investigator, PI	Dr Matthew Middleton
Abstract	The study of quasi-periodic oscillations (QPOs) is of increasing importance inhelping us to understand the enigmatic population of ultra-luminous X-raysources (ULXs). Whilst few in number, these signals present an opportunity tounderstand the accretion flow and provide a diagnostic of the central, unknownmass by comparison of the joint spectral and timing characteristics of theemission to those of well studied X-ray binaries (XRBs) and active galacticnuclei (AGNs). We propose a single orbit observation of NGC 6946 X-1, providingonly the second unambiguous high-quality dataset on a ULX with a QPO. This willallow the QPO and broad-band variability to be probed using the latest jointspectral/timing methods, allowing robust tests for models of the emission properties of this ULX.
Publications	Broad absorption features in wind-dominated ultraluminous X-ray sources? \|Middleton, Matthew J., Walton, Dominic J., et al. \| MNRAS \| 438-51 \| 2014 \| 2014MNRAS.438L..51M \| http://ui.adsabs.harvard.edu/#abs/2014MNRAS.438L..51M 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 A spectral-timing model for ULXs in the supercritical regime \|Middleton, Matthew J., Heil, Lucy, et al. \| MNRAS \| 447-3243 \| 2015 \| 2015MNRAS.447.3243M \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.447.3243M Non-detection of X-ray emission from sterile neutrinos in stacked galaxy spectra \|Anderson, Michael E., Churazov, Eugene, \| MNRAS \| 452-3905 \| 2015 \| 2015MNRAS.452.3905A \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.452.3905A 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 Diagnosing the accretion flow in ultraluminous X-ray sources using soft X-ray atomic features \|Middleton, Matthew J., Walton, Dominic J., et al. \| MNRAS \| 454-3134 \| 2015 \| 2015MNRAS.454.3134M \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.454.3134M Hot gas and magnetic arms of NGC 6946: Indications for reconnection heating? \|Wezgowiec, M., Ehle, M., \| A&A \| 585-3 \| 2016 \| 2016A&A...585A...3W \| http://ui.adsabs.harvard.edu/#abs/2016A&A...585A...3W Resolved atomic lines reveal outflows in two ultraluminous X-ray sources \|Pinto, Ciro, Middleton, Matthew J., \| Natur \| 533-64 \| 2016 \| 2016Natur.533...64P \| http://ui.adsabs.harvard.edu/#abs/2016Natur.533...64P 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 Pulsator-like Spectra from Ultraluminous X-Ray Sources and the Search for More Ultraluminous Pulsars \|Pintore, F., Zampieri, L., et al. \| ApJ \| 836-113 \| 2017 \| 2017ApJ...836..113P \| http://ui.adsabs.harvard.edu/#abs/2017ApJ...836..113P Analysis of Quasi-periodic Oscillations and Time Lag in Ultraluminous X-Ray Sources with XMM-Newton \|Li, Zi-Jian, Xiao, Guang-Cheng, et al. \| ApJ \| 839-19 \| 2017 \| 2017ApJ...839...19L \| http://ui.adsabs.harvard.edu/#abs/2017ApJ...839...19L Soft extragalactic X-ray binaries at the Eddington Threshold \|Earnshaw, Hannah M., Roberts, Timothy P., \| MNRAS \| 467-2690 \| 2017 \| 2017MNRAS.467.2690E \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.467.2690E From ultraluminous X-ray sources to ultraluminous supersoft sources: NGC 55 ULX, the missing link \|Pinto, C., Alston, W., et al. \| MNRAS \| 468-2865 \| 2017 \| 2017MNRAS.468.2865P \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.468.2865P Ultrafast outflows in ultraluminous X-ray sources \|Pinto, C., Fabian, A., et al. \| AN \| 338-234 \| 2017 \| 2017AN....338..234P \| http://ui.adsabs.harvard.edu/#abs/2017AN....338..234P Searching for outflows in ultraluminous X-ray sources through high-resolution X-ray spectroscopy \|Kosec, P., Pinto, C., et al. \| MNRAS \| 473-5680 \| 2018 \| 2018MNRAS.473.5680K \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.473.5680K Searching for propeller-phase ULXs in the XMM-Newton Serendipitous Source Catalogue \|Earnshaw, H. P., Roberts, T. P., \| MNRAS \| 476-4272 \| 2018 \| 2018MNRAS.476.4272E \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.476.4272E 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 A Broadband Look at the Old and New ULXs of NGC 6946 \|Earnshaw, Hannah P., Grefenstette, Brian W., et al. \| ApJ \| 881-38 \| 2019 \| 2019ApJ...881...38E \| http://ui.adsabs.harvard.edu/#abs/2019ApJ...881...38E A Sparkler in the Fireworks Galaxy: Discovery of an Ultraluminous X-Ray Transient with a Strong Oxygen Line in NGC 6946 \|Wang, Chen, Soria, Roberto, \| ApJ \| 883-44 \| 2019 \| 2019ApJ...883...44W \| http://ui.adsabs.harvard.edu/#abs/2019ApJ...883...44W Thermal stability of winds driven by radiation pressure in super-Eddington accretion discs \|Pinto, C., Mehdipour, M., et al. \| MNRAS \| 491-5702 \| 2020 \| 2020MNRAS.491.5702P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.491.5702P 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 The EXTraS project: Exploring the X-ray transient and variable sky \|De Luca, A., Salvaterra, R., et al. \| A&A \| 650-167 \| 2021 \| 2021A&A...650A.167D \| http://ui.adsabs.harvard.edu/#abs/2021A&A...650A.167D Ionized emission and absorption in a large sample of ultraluminous X-ray sources \|Kosec, P., Pinto, C., et al. \| MNRAS \| 508-3569 \| 2021 \| 2021MNRAS.508.3569K \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.508.3569K A multimission catalogue of ultraluminous X-ray source candidates \|Walton, D. J., Mackenzie, A. D. A., et al. \| MNRAS \| 509-1587 \| 2022 \| 2022MNRAS.509.1587W \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.509.1587W Variability in a low-mass active galactic nucleus: oscillation or eruption? \|Webbe, Robbie, Young, A. J., \| MNRAS \| 518-3428 \| 2023 \| 2023MNRAS.518.3428W \| http://ui.adsabs.harvard.edu/#abs/2023MNRAS.518.3428W Winds in ultraluminous X\\u2011ray sources: New challenges \|Pinto, C., Kosec, P., \| AN \| 344-20220134 \| 2023 \| 2023AN....34420134P \| http://ui.adsabs.harvard.edu/#abs/2023AN....34420134P Ultraluminous X-ray sources \|King, Andrew, Lasota, Jean-Pierre, \| NewAR \| 96-101672 \| 2023 \| 2023NewAR..9601672K \| http://ui.adsabs.harvard.edu/#abs/2023NewAR..9601672K 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 STATiX pipeline for the detection of X-ray transients in three dimensions \|Ruiz, A., Georgakakis, A., et al. \| MNRAS \| 527-3674 \| 2024 \| 2024MNRAS.527.3674R \| http://ui.adsabs.harvard.edu/#abs/2024MNRAS.527.3674R 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	2012-10-21T17:50:58Z/2012-10-23T02:59:19Z
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	2013-11-07T00:00:00Z
Keywords	"emission properties", "robust tests", "understudied ulx qpo", "NGC 6946", "broad band variability", "xray binary xrbs", "quality dataset", "enigmatic population", "single orbit", "accretion flow", "ngc 6946 x"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Matthew Middleton, 2013, 'A detailed look at an understudied ULX QPO', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-af0d1cu