|Title||X-RAY STUDY OF THE SPIRAL-DOMINANT COMPACT GALAXY GROUP HCG 57|
|Author||Dr YASUSHI FUKAZAWA|
|Description||It has been revealed that groups of galaxies contain a large amount of hot gas as well as galaxy clusters. Therefore, observations of X-ray emission from groups of galaxies allow us to estimate mass distribution and elemental abundances. However, only elliptical-dominant groups have been investigated until now, due to X-ray faintness of spiral-dominant ones. Here we propose to observe a spiral-dominant group of galaxies HCG 57 in order to investigate differences of temperature, metal, mass, and entropy between spiral-dominant and elliptical-dominant.|
|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, 2006-07-05T00:00:00Z, 020609, 17.56_20190403_1200. https://doi.org/10.5270/esa-f3zplfa|