| Proposal ID | 030242 |
| Title | The Central Engine of POX 52: A Seyfert 1 with an Intermediate-Mass Black Hole |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0302420101 |
| DOI | https://doi.org/10.5270/esa-c5sm1lp |
| Principal Investigator, PI | Dr Aaron Barth |
| Abstract | POX 52 is a Narrow-Line Seyfert 1 galaxy with extreme and unusual properties.Its black hole mass, estimated from the optical spectrum of the AGN, is only~10^5 solar masses; its host galaxy is a dwarf elliptical with a velocitydispersion of only 36+/-5 km/s; and it is radiating at L/L_Edd ~ 1. POX 52offers a unique opportunity to study black hole accretion at high accretionrates in a mass range that has barely been explored previously. We request 100ksec of EPIC-pn observations of this unique AGN in order to characterize itsX-ray spectrum and absorption, to search for Fe K line emission, to study itsvariability properties, and to search for quasi-periodic oscillations with theaim of better constraining the black hole mass. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-07-08T06:50:49Z/2005-07-09T11:39:23Z |
| 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 | 2006-08-07T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "central engine", "mass range", "variability properties", "solar masses", "blackhole accretion", "accretion rates", "quasi periodic oscillations", "EPIC", "blackhole mass", "dwarf elliptical", "line emission", "xray spectrum", "optical spectrum", "velocity dispersion", "epic pn", "narrow line seyfert" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Aaron Barth, 2006, 'The Central Engine of POX 52: A Seyfert 1 with an Intermediate-Mass Black Hole', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-c5sm1lp |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |