|Title||CONNECTING X-RAY AND UV LYALPHA ABSORBERS|
|Author||Ms KATRIEN STEENBRUGGE|
|Description||We propose to observe the Seyfert 1 galaxy Ton 1388 for 130 ks. This source shows 16 Lyalpha absorbers with a redshift between 0.01639 and 0.17366 along the line of sight. A Chandra LETGS observation showed evidence for the X-ray detection of three of these Lyalpha absorbers. With the proposed observation we will confirm these three detections, and place tight upper limits to the column densities of the remaining 13 Lyalpha absorbers. The RGS spectra will allow us to characterize the Warm-Hot Intergalactic Medium along the line of sight, obtaining total column densities, the dominant ionization process: collisional or photionization, and CNO abundances.|
|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, 2006-01-29T00:00:00Z, 020194, 17.56_20190403_1200. https://doi.org/10.5270/esa-1kqbh4n|