6533b7d8fe1ef96bd126a31f
RESEARCH PRODUCT
X-rays from accretion shocks in T Tauri stars: The case of BP Tau
J. H. M. M. SchmittJan RobradeJan-uwe NessBeate StelzerFabio Favatasubject
Physicsbusiness.product_categoryFilling factorAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsAccretion (astrophysics)T Tauri starSpace and Planetary ScienceHigh plasmaAstrophysics::Solar and Stellar AstrophysicsFunnelAstrophysics::Earth and Planetary AstrophysicsForbidden mechanismbusinessAstrophysics::Galaxy Astrophysicsdescription
We present an XMM-Newton observation of the classical T Tauri star BP Tau. In the XMM-Newton RGS spectrum the O {\sc vii} triplet is clearly detected with a very weak forbidden line indicating high plasma densities and/or a high UV flux environment. At the same time concurrent UV data point to a small hot spot filling factor suggesting an accretion funnel shock as the site of the X-ray and UV emission. Together with the X-ray data on TW Hya these new observations suggest such funnels to be a general feature in classical T Tauri stars.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-03-07 |