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X-Rays in YSOs and spectral accretion tracers
Oral comunication

R. Azevedo

Comparing X-ray data to optical data of Orion CTTS, a dependency is found between the X-ray soft band emission, hardness ratio and the optical veiling which indicates that the accretion columns and the accretion shock are important features for the X-ray formation in the low temperature regime and/or that the infalling material thermalizes coronal X-ray emission.

XVIII Encontro Nacional de Astronomia e Astrofísica
Évora, Portugal
2008 September

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Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia