| Name | 080131 |
| Title | Constraining the nature of the companion star of the IMBH HLX-1 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0801310101 |
| 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 |