| Proposal ID | 072520 |
| Title | Constraining Time lag- and PSD-scalings with the brightest low-mass AGN NGC 7314 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0725200101 |
| DOI | https://doi.org/10.5270/esa-6ikjid4 |
| Principal Investigator, PI | Dr Dimitrios Emmanoulopoulos |
| Abstract | Defining scaling relationships in accreting black holes of different mass andaccretion rate is the crucial step in understanding the underlying physicalprocesses. Measuring parameters for objects with extreme mass or accretion ratehas the greatest value. Here we propose a 2-orbit observation of by far thebrightest very low mass AGN, NGC7314. We aim to determine: 1) whether negativehigh frequency spectral lags (observational diagnostic of strong gravity) scalelinearly with mass, as expected from disc reflection models 2) whether PSD bendtimescales depend on accretion rate or not and 3) whether the high frequencypart of the PSD provides a mass indicator 4) whether lag value depends onabsorption, as required in wind models for lags. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2013-05-17T02:53:11Z/2013-11-30T03:54:30Z |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2014-12-13T23:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "psd scalings", "accretion rate", "disc reflection models", "accreting blackhole", "low mass agn", "frequency spectral lags", "wind models", "defining scaling relationships", "NGC 7314", "physical processes", "lag value", "constraining time lag", "gravity scale linearly" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Dimitrios Emmanoulopoulos, 2014, 'Constraining Time lag- and PSD-scalings with the brightest low-mass AGN NGC 7314', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-6ikjid4 |