|Title||A search for a spinning white dwarf companion in the gCas-analog HD 161103|
|Author||Dr Raimundo Lopes de Oliveira|
|Description||We ask for a new observation of the gamma Cassiopeiae-like X-ray star HD 161103 to check for the presence of the 3.2 ks modulation seen in the previous XMM-Newton observation (in 2004). If the modulation is observed once again with the same period, it would support the origin of the mysterious X-ray emission of the whole class of gamma Cas-like stars as being due to an accreting compact object, presumably a white dwarf.|
|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, 2013-09-21T00:00:00Z, 069176, 17.56_20190403_1200. https://doi.org/10.5270/esa-ykmmjfc|