| Name | 074144 |
| Title | An exceptionally powerful AGN outburst in the low-luminosity non-cool-core group |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741440101 |
| DOI | https://doi.org/10.5270/esa-g7y9yz0 |
| Author | Dr Ewan O.Sullivan |
| Description | The shallow potentials of galaxy groups make them vulnerable to heating and gas loss caused by powerful AGN outbursts. Theoretical models suggest that feedback at zvirgul2 must have ejected gas from groups, reducing their baryon content, but a lack of identified nearby non-cool-core (NCC) groups makes it difficult to determine whether AGN continue to have such a significant impact on the structure of the intra-group medium (IGM). We propose a deep observation of HCG 15, a disturbed non-cool-core group which appears to have undergone an exceptionally powerful AGN outburst virgul190-330 Myr ago. We will search for cavities, make a more accurate estimate of the outburst power, examine the IGM for evidence of outward gas transport, and determine whether the AGN has disrupted the group core. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2014-08-06T21:09:43Z/2014-08-08T12:03:03Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2015-08-25T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Ewan O.Sullivan, 2015, 074144, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-g7y9yz0 |