| Name | 030129 |
| Title | WHERE IS THE IRON IN THE NGC 5044 GALAXY GROUP ? |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0301290101 |
| DOI | https://doi.org/10.5270/esa-ni8qtdl |
| Author | Prof William Mathews |
| Description | This is a request for a second off-center observation of the galaxy group NGC 5044. Our previous offset observation, centered 217 kpc to the south of the group center, revealed that the hot gas in this region has received much less iron than expected from dwarf galaxy outflows. We now request to observe NGC 5044 offset to the west where the density of dwarf galaxies is greater. If the iron abundance is greater in the western offset, this will alleviate or remove the iron shortfall implied by the southern offset and will indicate that baryons entered the group anisotropically along cosmic filaments. If not, this will strengthen our conclusion that a considerable fraction of the iron produced by supernovae is not visible either in the hot gas or in galactic stars. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2006-01-06T09:47:35Z/2006-01-07T01:51:07Z |
| 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 | 2007-01-24T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2007-01-24T00:00:00Z, 030129, 17.56_20190403_1200. https://doi.org/10.5270/esa-ni8qtdl |