|PROBING THE X-RAY EMITTING GAS AND CIRCUMSOURCE ABSORBING MATERIALS OF GAMMA CAS
|Dr MING GU
|gamma Cas is a well-known Be star with unique X-ray properties. A previously obtained Chandra HETGS spectrum exhibits lines from a broad range of temperatures, suggesting the emission is composed of multiple components and possible signatures of the influence of the surrounding Be disk. An issue of compelling interest is whether the X-rays are emitted from near this Be star or elsewhere (e.g. from an accreting degenerate secondary). We propose to exploit the high effective areas of the EPIC and RGS spectromenters on board XMM to obtain additional information concerning the properties of X-ray emitting plasmas and the circumsource absorbing materials of gamma Cas.
|No observations found associated with the current proposal
|EMOS1, EMOS2, EPN, OM, RGS1, RGS2
|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
|European Space Agency, 2005, 020122, 17.56_20190403_1200. https://doi.org/10.5270/esa-sghm3vb