| Name | 090086 |
| Title | Survey of Suppressed X-ray Emission from Super-Eddington Accreting IMBHs |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0900860401 |
| DOI | https://doi.org/10.57780/esa-d20zsu1 |
| Author | European Space Agency |
| Description | A substantial fraction of accreting IMBHs show suppressed X-ray emission compared to the expectation from the active galactic nuclei (AGNs) accretion disk-corona connection. They also show unusally strong X-ray variability. We propose a systematic XMM-Newton survey (8-25 ks exposures) of the 14 extremely X-ray weak (by factors of >10) accreting IMBHs selected from previous Chandra snapshot coverage. We aim to identify large-amplitude X-ray variability and characterize X-ray spectral properties. We will determine whether absorption from clumpy disk wind associated with super-Eddington accretion is responsible for the extreme X-ray weakness and X-ray variability, and thus to unify these IMBHs and super-Eddington accreting AGNs under the same physical scenario. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-10-15T10:04:36Z/2022-10-15T17:52:56Z |
| Version | 20.09_20221024_1724 |
| 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 | 2023-11-11T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023, Survey Of Suppressed X-Ray Emission From Super-Eddington Accreting Imbhs, 20.09_20221024_1724, European Space Agency, https://doi.org/10.57780/esa-d20zsu1 |