|Title||X-RAY HALOES OF MASSIVE GALAXIES: TESTING GALAXY FORMATION|
|Author||Dr KRISTIAN PEDERSEN|
|Description||The luminosity of X-ray haloes around disc galaxies is a crucial quantity for constraining theories for the assembly of disc galaxies. We have compiled a unique, physically realistic sample of hydrodynamical simulations of disc galaxy formation and evolution, predicting present day X-ray halo luminosities and the spatial distribution of the X-ray emission. Here we propose to test these novel models by obtaining deep XMM-Newton pointings of two massive, nearby, edge-on disc galaxies. A detection of X-ray haloes around these massive disc galaxies will for the first time prove that disc formation is on-going today. Alternatively, a non-detection will require a major re-thinking of the currently accepted scenario for assembling disc galaxies.|
|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, 2005-02-21T00:00:00Z, 020630, 17.56_20190403_1200. https://doi.org/10.5270/esa-i07ib9v|