| Proposal ID | 086394 |
| Title | Is there a slope change in the L_O-L_X relation for low-mass active black holes? |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0863941401 |
| DOI | https://doi.org/10.57780/esa-718ow1g |
| Principal Investigator, PI | Dr Igor Chilingarian |
| Abstract | A linear correlation between X-ray and optical OIII line luminosities in AGNis thought to manifest the ionization of low-density gas by the field of high-energy photons from the central black hole vicinity. It is often used toestimate the AGN ionizing flux from optical spectra. We identified 33 AGNpowered by low-mass BHs (<6e5 MSun). They form a tight (spread 0.23dex) sub-linear (L_OIII~L_X^0.48) relation that steepens and puffs up once more massiveobjects are included. We propose to observe a complete flux limited sample of 21AGN with low-mass BHs (<1e6 MSun) with available optical IFU spectroscopy. Wewill pin down the transition mass where the L_OIII-L_X slope changes and checkwhether it is connected to AGN-driven outflows, internal structure, dynamics, and star formation |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-11-08T07:59:49Z/2021-02-24T18:56:35Z |
| Version | 21.51_20241115_1113 |
| 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 | 2022-03-18T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "energy photons", "optical spectra", "internal structure", "6e5 msun", "agn ionizing flux", "transition mass", "low density gas", "optical ifu spectroscopy", "l_oiii l_x slope", "star formation", "agn powered", "agn driven outflows", "l_o l_x relation", "linear correlation", "central blackhole vicinity", "massive objects", "1e6 msun", "line luminosities", "low mass bhs", "tight spread" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Igor Chilingarian, 2022, 'Is there a slope change in the L_O-L_X relation for low-mass active black holes?', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-718ow1g |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |