|Title||NGC 741: Mergers and AGN feedback at the group scale|
|Author||Dr J. M. Vrtilek|
|Description||While AGN & mergers are thought to play important roles in group & cluster evolution, their effects in galaxy groups are poorly understood. We propose to observe the NGC741 group, which hosts both an old central radio galaxy, & a spectacular infalling head-tail source. Strongly-bent jets, a 100kpc radio trail and intriguing narrow X-ray filaments suggest that NGC 742 is moving trans-sonically, undergoing stripping and shock heating. NGC 741 possesses both an old, faint radio lobe & an X-ray cavity, whose inflating plasma may have unusual properties. We request Chandra and XMM observations of the group with the goal of examining the roles of the central AGN and infalling galaxy in heating the intra-group medium, & determining the origin of the intriguing X-ray filaments.|
|Publication||NGC 741---Mergers and AGN Feedback on a Galaxy-group Scale . Schellenberger, G., Vrtilek, J. M., et all. . ApJ . 845-84 . 2017 . 2017ApJ...845...84S ,
|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, 2016-02-03T23:00:00Z, 074819, 17.56_20190403_1200. https://doi.org/10.5270/esa-blm94a7|