| Proposal ID | 086136 |
| Title | Revisiting the obscuring wind of NGC 5548 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0861360101 |
| DOI | https://doi.org/10.57780/esa-j2y69g1 |
| Principal Investigator, PI | Dr Junjie Mao |
| Abstract | An obscuring wind featuring heavy absorption of the soft X-ray continuumassociated with blue-shifted UV broad absorption lines was previously discoveredin NGC 5548. The obscurer has been present in our line-of-sight (LOS) since atleast 2011. Outside our LOS, if photons from the central engine to thenarrow-line region are also screened, X-ray narrow emission lines would bediminished, given adequate delay time. We propose to observe NGC 5548 with XMM-Newton for 70 ks, we can verify whether the narrow emission lines in the softX-ray band are diminished. This helps us to better understand the geometry ofthe obscurer. With coordinated HST/COS, we can study the FUV and NUV absorptionlines associated with the obscurer along the LOS. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-01-27T04:33:50Z/2021-01-28T01:40:30Z |
| Version | 18.02_20200221_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 | 2022-04-06T00:00:00Z |
| Keywords | "ngc 5548", "XMM", "narrow line region", "nuv absorption lines", "coordinated hst", "sight los", "central engine", "adequate delay time", "NGC 5548", "HST", "soft xray continuum", "narrow emission lines", "obscuring wind", "soft xray band", "xmm newton" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Junjie Mao, 2022, 'Revisiting the obscuring wind of NGC 5548', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-j2y69g1 |