| Name | 040452 |
| Title | The Role of Intracluster Stars in the Enrichment of the Intracluster Medium |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0404520101 |
| DOI | https://doi.org/10.5270/esa-onfld0w |
| Author | Mr Suresh Sivanandam |
| Description | How the intracluster medium (ICM) becomes enriched with metals is an important, yet unresolved, question. Conventional models, which hypothesize that cluster galaxies inject metals into the ICM via galactic winds and-or ram-pressure stripping, fall short unless they appeal either to extreme 100% mass loss or non-standard stellar initial mass functions to explain the ICM.s high enrichment. In contrast, our new measurements of the intracluster stars (Gonzalez et al. 2004), when combined with simple modeling, suggests that they produce a large fraction of the ICM.s metals (Zaritsky et al. 2005). Given the surprising nature of this result, in which at least some of the ICM.s metals are produced in situ instead of being transported out of galaxies, it is essential to further test our model. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2006-05-11T10:37:04Z/2006-11-29T03:52:05Z |
| 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 | 2008-01-04T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2008-01-04T00:00:00Z, 040452, 17.56_20190403_1200. https://doi.org/10.5270/esa-onfld0w |