| Name | 082072 |
| Title | Is there an enormous cold front at the virial radius of the Perseus cluster? |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0820720101 |
| DOI | https://doi.org/10.5270/esa-iszy2ll |
| Author | European Space Agency |
| Description | One remarkable recent development in the study of cold fronts in galaxy clusters is the discovery of large scale cold fronts reaching out to very large radii in the Perseus cluster. Large scale cold fronts are much older than those commonly found in cluster cores, as they have risen outwards and grown with time. Because of this, diffusion processes have had much longer to broaden the cold front edge, while Kelvin-Helmholtz instabilities have had much longer to grow. Existing ROSAT and Suzaku observations suggest that there is an enormous cold front located near the virial radius of the Perseus cluster, at the edge of a western X-ray excess, but lack the spatial resolution to be definitive. We propose brief observations with XMM to determine whether there really is a cold front present. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-02-20T10:53:29Z/2019-03-04T17:03:35Z |
| 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 | 2020-03-29T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2020, Is There An Enormous Cold Front At The Virial Radius Of The Perseus Clusterquestionmark, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-iszy2ll |