A dataset provided by the European Space Agency

Name: Taking the beat of the UNSeEN openParThe Ultraluminous NS populatioN of ULXsclosePar
Published: 2020-01-17T23:00:00Z

Proposal ID	082445
Title	Taking the beat of the UNSeEN (The Ultraluminous NS populatioN of ULXs)
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824450201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824450301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824450401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824450501 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824450601 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824450701 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824450801 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824450901
DOI	https://doi.org/10.5270/esa-govki6q
Principal Investigator, PI	Prof Gian Luca Israel
Abstract	Due to their super-Eddington (L_Edd) X-ray luminosity ULXs have long beenconsidered the ideal sample where to look for BHs of intermediate mass. Thediscovery of three ULXs showing pulsations unambiguously associated them to NSsexceeding 500 times their L_Edd. These discoveries challenge our understandingof accretion physics and pose a key question about the nature of the ULXs\: arethey a population hosting both BHs and NSs, or is there a dominant new NSpopulation with extreme properties? This proposal involves a large fraction ofthe ULX community and is aimed at answering the above question by tripling thenumber of ULXs where sensitive searches for X-ray pulsations and cyclotronfeatures can be carried out. We expect to detect 2-3 new PULXs, thus doubling the current sample.
Publications	A Long Hard-X-Ray Look at the Dual Active Galactic Nuclei of M51 with NuSTAR \|Brightman, M., Balokovic, M., et al. \| ApJ \| 867-110 \| 2018 \| 2018ApJ...867..110B \| http://ui.adsabs.harvard.edu/#abs/2018ApJ...867..110B M51 ULX-7: superorbital periodicity and constraints on the neutron star magnetic field \|Vasilopoulos, G., Lander, S. K., et al. \| MNRAS \| 491-4949 \| 2020 \| 2020MNRAS.491.4949V \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.491.4949V The Ultraluminous X-Ray Sources Population of the Galaxy NGC 7456 \|Pintore, F., Marelli, M., et al. \| ApJ \| 890-166 \| 2020 \| 2020ApJ...890..166P \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...890..166P Spectral Modeling of Charge Exchange in the Central Region of M51 \|Yang, Hang, Zhang, Shuinai, \| ApJ \| 894-22 \| 2020 \| 2020ApJ...894...22Y \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...894...22Y Discovery of a 2.8 s Pulsar in a 2 Day Orbit High-mass X-Ray Binary Powering the Ultraluminous X-Ray Source ULX-7 in M51 \|Rodr\\u00edguez Castillo, G. A., Israel, G. L., et al. \| ApJ \| 895-60 \| 2020 \| 2020ApJ...895...60R \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...895...60R Swift Monitoring of M51: A 38 day Superorbital Period for the Pulsar ULX7 and a New Transient Ultraluminous X-Ray Source \|Brightman, Murray, Earnshaw, Hannah, et al. \| ApJ \| 895-127 \| 2020 \| 2020ApJ...895..127B \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...895..127B 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 Possible Periodic Dips in the Pulsating Ultraluminous X-Ray Source M51 ULX-7 \|Hu, Chin-Ping, Ueda, Yoshihiro, \| ApJ \| 909-5 \| 2021 \| 2021ApJ...909....5H \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...909....5H Long-term X-ray spectral evolution of ultraluminous X-ray sources: implications on the accretion flow geometry and the nature of the accretor \|G\\u00farpide, A., Godet, O., et al. \| A&A \| 649-104 \| 2021 \| 2021A&A...649A.104G \| http://ui.adsabs.harvard.edu/#abs/2021A&A...649A.104G Spectral state transitions in Circinus ULX5 \|Mondal, Samaresh, R\\u00f3\\u017ca\\u0144ska, Agata, et al. \| A&A \| 651-54 \| 2021 \| 2021A&A...651A..54M \| http://ui.adsabs.harvard.edu/#abs/2021A&A...651A..54M Optical counterparts of ULXs in two dwarf galaxies: NGC 4861 and NGC 4449 \|Ozdogan Ela, M., Akyuz, A., et al. \| MNRAS \| 505-771 \| 2021 \| 2021MNRAS.505..771O \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.505..771O Evidence for Fe K\\u03b1 line and soft X-ray lag in NGC 7456 ultraluminous X-ray source-1 \|Mondal, Samaresh, R\\u00f3\\u017ca\\u0144ska, Agata, et al. \| MNRAS \| 505-106 \| 2021 \| 2021MNRAS.505L.106M \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.505L.106M 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 possible planet candidate in an external galaxy detected through X-ray transit \|Di Stefano, Rosanne, Berndtsson, Julia, et al. \| NatAs \| 5-1297 \| 2021 \| 2021NatAs...5.1297D \| http://ui.adsabs.harvard.edu/#abs/2021NatAs...5.1297D Evolution of the Spin, Spectrum and Superorbital Period of the Ultraluminous X-Ray Pulsar M51 ULX7 \|Brightman, Murray, Bachetti, Matteo, et al. \| ApJ \| 925-18 \| 2022 \| 2022ApJ...925...18B \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...925...18B Magnetic fields and hot gas in M 101 \|We\\u017cgowiec, M., Beck, R., et al. \| A&A \| 664-108 \| 2022 \| 2022A&A...664A.108W \| http://ui.adsabs.harvard.edu/#abs/2022A&A...664A.108W NuSTAR Observations of 52 Compton-thick Active Galactic Nuclei Selected by the Swift/Burst Alert Telescope All-sky Hard X-Ray Survey \|Tanimoto, Atsushi, Ueda, Yoshihiro, et al. \| ApJS \| 260-30 \| 2022 \| 2022ApJS..260...30T \| http://ui.adsabs.harvard.edu/#abs/2022ApJS..260...30T A Multiepoch X-Ray Study of the Nearby Seyfert 2 Galaxy NGC 7479: Linking Column Density Variability to the Torus Geometry \|Pizzetti, A., Torres-Alb\\u00e0, N., et al. \| ApJ \| 936-149 \| 2022 \| 2022ApJ...936..149P \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...936..149P X-Ray Spectroscopic Evidence of Charge Exchange Emission in the Disk of M51 \|Zhang, Shuinai, Wang, Q. Daniel, et al. \| ApJ \| 941-68 \| 2022 \| 2022ApJ...941...68Z \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...941...68Z The Extragalactic Population of Accreting Neutron Stars and the Ultraluminous X-ray Sources Paradigm: from ULTraS to PULSULTraS \|Israel, G. L., de Luca, A., et al. \| MmSAI \| 93-34 \| 2022 \| 2022MmSAI..93b..34I \| http://ui.adsabs.harvard.edu/#abs/2022MmSAI..93b..34I Multi-epoch hard X-ray view of Compton-thick AGN Circinus Galaxy \|Kayal, Abhijit, Singh, Veeresh, et al. \| MNRAS \| 522-4098 \| 2023 \| 2023MNRAS.522.4098K \| http://ui.adsabs.harvard.edu/#abs/2023MNRAS.522.4098K Ultraluminous X-ray sources \|King, Andrew, Lasota, Jean-Pierre, \| NewAR \| 96-101672 \| 2023 \| 2023NewAR..9601672K \| http://ui.adsabs.harvard.edu/#abs/2023NewAR..9601672K Exploring X-Ray Properties of Low-metallicity Dwarf Galaxies \|Cann, Jenna M., Weaver, Kimberly A., et al. \| ApJ \| 961-178 \| 2024 \| 2024ApJ...961..178C \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...961..178C 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
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2018-05-11T21:25:50Z/2018-12-30T10:30:18Z
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	2020-01-17T23:00:00Z
Keywords	"pulsations unambiguously", "accretion physics", "xray pulsations", "sensitive searches", "ideal sample", "ultraluminous ns population", "ns population", "ulx community", "intermediate mass", "ulxs \:"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof Gian Luca Israel, 2020, 'Taking the beat of the UNSeEN openParThe Ultraluminous NS populatioN of ULXsclosePar', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-govki6q