ROSAT detected X-ray emission from more than a dozen Herbig Ae/Be stars(intermediate mass pre-main-sequence stars), but its origin is not yetunderstood. Several explanations have been proposed, but there is presentlyno X-ray spectrum of sufficient quality to rigorously constrain the theory.We propose to obtain an EPIC pn spectrum of HD104237, the closest Herbig Ae star known. This spectrum will provide the accurate temperature discrimination needed to test competing models based on shock processesand wind-fed magnetospheres (which predict only soft emission below 1 keV)and coronal models in which hotter plasma is expected.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2002-02-17T15:18:54Z/2002-02-17T19:55:00Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Dr Stephen Skinner, 2003, 'Deciphering the X-ray Emission of the Nearest Herbig Ae Star', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ij827gm
