|Title||Physical pairs: a way station on the road of coalescence of poor groups|
|Author||Dr Ginevra Trinchieri|
|Description||Our knowledge of galaxy evolution in a hierarchical evolutionary scenario requires understanding of progressively poorer structures. Poor-loose groups represent the defining galaxy aggregates in the field and are probably closely connected to physical pairs as well as to isolated E galaxies. We propose to observe a sample of mixed morphology physical pairs, isolated or in poor environments in the Southern hemispere. Systems span a wide range of impact parameters, indicative of different stages-kinds of galaxy encounters in the field. Our specific aim is to reach a definition of the evolutionary state of the pair-loose group, which could be closely linked to their X-ray properties.|
|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, 2004-11-07T00:00:00Z, 014858, 17.56_20190403_1200. https://doi.org/10.5270/esa-dlwcsf2|