We have detected bright X-ray emission from the rapidly-accreting jet-driving TTauri star RY Tau. Chandra ACIS-S spectra reveal a wealth of emission linesarising in a multi-temperature plasma consisting of a superhot variablecomponent and a very soft component traced down to approximately 0.2 keV. ACIS-Simages show faint soft emission extending outward along the jet. We propose toobtain a high-resolution grating spectrum of RY Tau using RGS. The spectrum willprovide crucial information needed to construct a detailed emission model andidentify the origin of the very soft component, which likely arises at the baseof the jet or an accretion shock.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2013-08-21T04:16:33Z/2013-08-22T11:33:13Z
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, 2014, 'Accretion comma Jets comma and a Superhot Corona in the T Tauri Star RY Tau', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-gcs5yfm
