|Title||EPIC Observations of Giant Low Surface Brightness Galaxies|
|Author||Dr Shude Mao|
|Description||Current galaxy formation theory predicts that large disk galaxies are embedded in hot gaseous haloes. Previous observations of high surface brightness (HSB) galaxies show that the predicted X-ray luminosities are too high by one order of magnitude. We propose to shed further light on this discrepancy by obtaining 10 ks exposures of three giant low surface brightness (LSB) galaxies. In contrast to HSB galaxies, the mass distributions in these LSB systems are known to large radii through HI studies. Their low star formation activity makes loss of gas through galactic winds improbable. Substantial X-ray haloes should thus be seen. Combined with extensive ground-based data, these observations will provide a critical test of current ideas about how galaxies form.|
|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, 2003-07-05T00:00:00Z, 006695, 17.56_20190403_1200. https://doi.org/10.5270/esa-w3kpgpk|