| Proposal ID | 067278 |
| Title | A Variable Energy, Redshifted, Iron Absorption Line in a recoiling Black Hole |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0672780101 |
| DOI | https://doi.org/10.5270/esa-229q51n |
| Principal Investigator, PI | Dr Francesca Civano |
| Abstract | We ask for 120ks of XMM/EPIC time on a unique z=0.359 source which shows in theX-rays an unprecedented redshifted, variable in energy, absorption iron line,plus an iron emission line, forming an inverted P-Cygni profile. In the optical,two sources, within ~2.5 kpc, are embedded in the same galaxy. One of them isthe best candidate to date for being a recoiling SMBH with both spectroscopicand imaging signatures, in a recently merged system. Chandra/HRC imaging andHST/STIS data, will help to understand if CID-42 is a GW recoiling SMBH or aslingshot recoiling SMBH in a triple SMBH system. The EPIC spectrum willconstrain column density, velocity and ionization state of the absorbing gas,and link the nature of the X-ray absorption line with the nature of this source. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2011-06-03T05:13:50Z/2011-06-04T18:09:33Z |
| 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 | 2012-06-24T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "359 source", "XMM", "absorption iron line", "gw recoiling smbh", "recoiling black hole", "xray absorption line", "EPIC", "absorbing gas", "imaging signatures", "slingshot recoiling smbh", "hrc imaging", "epic spectrum", "epic time", "recoiling smbh", "constrain column density", "HST", "stis data", "variable energy", "triple smbh system", "iron absorption line", "merged system", "iron emission line", "cygni profile" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Francesca Civano, 2012, 'A Variable Energy, Redshifted, Iron Absorption Line in a recoiling Black Hole', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-229q51n |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |