A dataset provided by the European Space Agency

Name 080131
Title Constraining the nature of the companion star of the IMBH HLX-1


DOI https://doi.org/10.5270/esa-b4qrm95
Author Dr olivier godet
Description We found in 2009 a strong virgul10^4 Msun IMBH candidate, the hyper luminous X-ray source HLX-1 in the outskirts of the ESO 243-49 galaxy. We proposed that the IMBH is fed by mass transfer episodes when a WD donor passes at periapsis and is tidally stripped, leading to X-ray outbursts. We detected in previous XMM observations of HLX-1 faint unresolved X-ray lines at 0.64, 0.88 & 0.98keV. We propose that they may be due to photo-ionization of nearby material by the central source. We request a 130ks XMM ToO to detect with a high significance soft X-ray lines when the source will be near its emission peak. Modeling of the RGS data with photo-ionization codes will help us put constraints on the physical and dynamical properties of the emitting material around the BH.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2017-05-17T23:02:18Z/2017-05-19T11:18:58Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 2018-06-13T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2018-06-13T22:00:00Z, 080131, 17.56_20190403_1200. https://doi.org/10.5270/esa-b4qrm95