We propose a 22.5 arcmin offset observation of the unique galaxy group NGC 5044to obtain unprecedented constraints on star formation history and evolution ingroups of galaxies. Having already analyzed the inner 100 kpc of this systemin a modest pointed AO1 observation, we will now investigate the criticaltransition region (100-600kpc) where metal abundances have not been previouslystudied. First, we will definitively measure the total Fe mass in this systemto a large fraction (0.6) of the virial radius. In addition, we expect tomeasure a sharp drop in abundance as we explore the ICM untouched by SN fromthe dominant galaxy. This directly constrains both the IMF and the uncertainSNII Fe yield.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2003-01-09T12:27:27Z/2003-01-09T23:19:23Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Dr Aaron Lewis, 2004, 'NGC 5044: Probing the Iron Abundance at Large Radii', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tqcsyrk
