| Name | 065191 |
| Title | Si to Fe Abundance Ratio in the Hot ISM of Early Type Galaxies |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651910401 |
| DOI | https://doi.org/10.5270/esa-ye8vs9r |
| Author | European Space Agency |
| Description | We propose deep XMM-Newton observations of young, post-merger elliptical galaxies to determine Si to Fe abundance ratios in the hot ISM and to compare with those of typical old elliptical galaxies. Accurate measurement of Fe to alpha element abundance ratios is critical to understand the metal enrichment history from SNe Type Ia and II ejecta. Because the LX/LB ratios are low among the proposed ellipticals, measurements of individual element abundances are uncertain and often controversial. However, the Si to Fe abundance ratio can be tightly constrained by analyzing the proposed XMM-Newton data, in conjunction with available Chandra data to constrain the LMXB contribution to the XMM spectra. These results can constrain different evolutionary scenarios. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-12-08T18:21:23Z/2011-01-06T03:15:04Z |
| 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 | 2012-01-26T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2012, Si To Fe Abundance Ratio In The Hot Ism Of Early Type Galaxies, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ye8vs9r |