A dataset provided by the European Space Agency

Name: The Stellar Population Around the Intermediate Mass Black Hole ESO 243-49 HLX-1
Published: 2014-08-31T00:00:00Z

Proposal ID	069306
Title	The Stellar Population Around the Intermediate Mass Black Hole ESO 243-49 HLX-1
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0693060301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0693060401
DOI	https://doi.org/10.5270/esa-jfwkzy0
Principal Investigator, PI	Dr Sean Farrell
Abstract	We request joint XMM-Newton and HST observations of the best intermediate massblack hole candidate HLX-1. Recent HST and Swift observations found thebroadband spectral energy distribution was well described by an irradiatedaccretion disc plus a stellar population. However, degeneracies in the modelsresulted in two acceptable solutions with dramatically different parametervalues. We request two observations to be performed with XMM-Newton and the HSTat different X-ray luminosities in order to break these model degeneracies usingthe variability of the disc emission. With these observations we will be able todetermine the nature of the environment around the black hole, test formationtheories for HLX-1, and rule out beaming as the origin of the extreme luminosities.
Publications	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 Radio variability in the Phoenix Deep Survey at 1.4 GHz \|Hancock P. J. Drury J. A. et al. \| MNRAS \| 461-3314 \| 2016 \| 2016MNRAS.461.3314H \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.461.3314H 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 New Physical Insights about Tidal Disruption Events from a Comprehensive Observational Inventory at X-Ray Wavelengths \|Auchettl Katie Guillochon James \| ApJ \| 838-149 \| 2017 \| 2017ApJ...838..149A \| http://ui.adsabs.harvard.edu/#abs/2017ApJ...838..149A Outbursts of the intermediate-mass black hole HLX-1: a wind-instability scenario \|Soria Roberto Musaeva Aina et al. \| MNRAS \| 469-886 \| 2017 \| 2017MNRAS.469..886S \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.469..886S AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton \|Svoboda J. Guainazzi M. \| A&A \| 603-127 \| 2017 \| 2017A&A...603A.127S \| http://ui.adsabs.harvard.edu/#abs/2017A&A...603A.127S Ultra-steep-spectrum Radio Jellyfish Uncovered in A2877 \|Hodgson Torrance Bartalucci Iacopo et al. \| ApJ \| 909-198 \| 2021 \| 2021ApJ...909..198H \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...909..198H 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 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	2012-11-23T02:19:28Z/2013-07-05T14:50:33Z
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	2014-08-31T00:00:00Z
Last Update	2025-01-27
Keywords	"xmm newton", "disc emission", "XMM-Newton", "test formation theories", "xray luminosities", "stellar population", "model degeneracies", "XMM", "acceptable solutions", "parameter values", "models resulted", "black hole", "HST"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Sean Farrell, 2014, 'The Stellar Population Around the Intermediate Mass Black Hole ESO 243-49 HLX-1', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-jfwkzy0