ClassvirgulI and II YSOs are bright sources of soft (< 10 keV) X-rays, but verylittle is known of their hard (> 10 keV) X-ray emission and of theirinter-relation. Those YSOs can exhibit emission in the Fe Kalpha line at 6.4keV. Its origin and site of production is still controversial, e.g., being dueto flare reverberation or accelerated particles hitting the corona or thesurrounding inner part of the circumstellar disk. Time resolved spectroscopymade possible with the proposed 300 ks long joint simultaneous XMM-EPIC andNustar observations of Elias29, in the nearby (120 pc) rho Oph SFR, and of theother YSOs in the Nustar FOV will allow us to investigate, for the first time,these open questions.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2017-08-13T16:17:25Z/2017-08-18T22:17:17Z
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, Prof Salvatore Sciortino, 2018, 'The hard X-ray emission of Class I-II YSOs and the origin of the 6.4 keV Fe line', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5a80qtq
