Recent X-ray and optical observations suggest that the supersoft ultraluminousX-ray source in NGC 247 is an interesting candidate for an intermediate massblack hole, based on the fact that emission from an unusually cool and luminousaccretion disk can explain multiwavelength data across 3 orders of magnitudes inwavelength. If the disk interpretation is valid, the source is predicted to beUV-luminous. Thus, we propose joint HST/XMM-Newton observations of the sourcefor a definitive test of of the disk scenario and reliable measurement of theblack hole mass.
Publications
A Luminous X-Ray Flare from the Nucleus of the Dormant Bulgeless Spiral Galaxy NGC 247 |Feng, Hua, Ho, Luis C., et al. | ApJ | 807-185 | 2015 | 2015ApJ...807..185F | http://ui.adsabs.harvard.edu/#abs/2015ApJ...807..185F
Nature of the Soft ULX in NGC 247: Super-Eddington Outflow and Transition between the Supersoft and Soft Ultraluminous Regimes |Feng, Hua, Tao, Lian, et al. | ApJ | 831-117 | 2016 | 2016ApJ...831..117F | http://ui.adsabs.harvard.edu/#abs/2016ApJ...831..117F
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
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
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
2014-07-01T04:20:39Z/2014-07-01T14:32:19Z
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.
European Space Agency, Dr Hua Feng, 2015, 'Multiwavelength Test For A Standard Accretion Disk Around An Intermediate BHC', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-23g9upy
