|Title||HD110432: the most extreme case amongst gamma-Cas X-ray stars|
|Author||Dr Raimundo Lopes de Oliveira|
|Description||We propose to conduct a spectral and photometric characterization of the gamma Cas-like star HD 110432 from a broad energy range. The aims are to confront the multiple-discrete plasma and the cooling plasma scenarios, and look for signs of ..reflection. of X-rays from a cold material. In addition, the investigation will allow us to check for presence of flare-like events in high energies and for extended ..drop-off. time interval in the hard flux. This investigation requires a simultaneous campaign with the XMM-Newton (15 ks) and NuSTAR (100 ks) satelites. The ultimate goal is to contribute to solve one of the bigger X-ray mysteries in massive stars: the origin of the X-rays of gamma Cas stars; magnetic Be stars or accreting white dwarfs?|
|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, 2020-08-16T22:00:00Z, 084076, 17.56_20190403_1200. https://doi.org/10.5270/esa-jwhwciw|