We propose to use XMM to observe the RSCG42 and FGC1287 galaxy groups in theoutskirts of Abell1367. Galaxies in these groups show extraordinarily long HItails extending for virgul160 and 250kpc, respectively, i.e., among the longest HIstructures ever observed in groups of galaxies. X-ray data are necessary todetermine the physical properties of the hot gas in these galaxies, to look forany hot counterpart of the cold HI tails and to determine the properties of theintra-group gas in these systems. These observations have the potential todiscriminate between the competing mechanisms that have been claimed to beresponsible for gas stripping in galaxy groups.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2012-06-16T05:29:08Z/2012-06-20T12:12:22Z
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 Luca Cortese, 2013, 'The origin of virgul200 kpc long gas tails in galaxy groups infalling into Abell1367', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-zo1vla9
