|Title||Simultaneous XMM-Chandra Observations of 3C273|
|Author||Mr Andy Pollock|
|Description||Cross-calibration with Chandra is important and best done on simultaneous observations of objects with smooth continua as the whole of the detectors are illuminated. The proposed work is part of the Chandra effort to understand the significant build-up of ACIS contamination. Simultaneous observations will help both us and them. They are planning two 30ks observations numbered 4430 (ACIS-S+HETG) and 4431 (ACIS-S+LETG) in the Chandra long-term schedule and have undertaken to make an effort to do them when visible by XMM, which is not the case in the current rough plan.|
|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, 2005-01-09T00:00:00Z, 015996, 17.56_20190403_1200. https://doi.org/10.5270/esa-0wr439f|