|Title||Mass, Enrichment, and Entropy in a Typical Isolated Elliptical Galaxy|
|Author||Dr Tesla Jeltema|
|Description||We propose a 100 ksec XMM observation of the isolated elliptical galaxy NGC2325, a fairly typical galaxy in terms of its X-ray and optical luminosity. Studies of isolated galaxies allow us to investigate the intrinsic properties of the hot gas halos in early-type galaxies without the complicating effects of a cluster or group environment, and we will study in detail the metallicity, entropy, and temperature profiles in this galaxy as indications of the effectiveness of enrichment and feedback processes. In addition, we will shed light on the debate over the dark matter density profiles of ellipticals by uniquely determining the mass profile of the same isolated galaxy using both deep X-ray and optical dynamical measurements.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2012-10-18T00:00:00Z, 067087, 17.56_20190403_1200. https://doi.org/10.5270/esa-q3vfdxh|