Site menu:

Latest news:

Jan 16, 2014
Workshop 2014 announced

Read more »

Jan 16, 2014
Lecture series announced

Read more »

Jan 16, 2014
Presentation skills seminar announced

Read more »

Jan 16, 2014
Voice training seminar announced

Read more »

Zur deutschen Version

Contact etc.:

Search this site:

Links:

Image of M. Günther

M. Günther

Homepage »

Research: Accretion, winds and jets : high-energy emission from young stellar objects

I work on young low-mass systems. The central stars are surrounded by proto-planetary disks, hence this phase of star formation is critical to determine the mass available for planet formation and the total angular momentum. I study the high-energy emission, which is composed of three emission regions: i) the corona of the central star, ii) an accretion spot on its surface, where matter from the disk impacts on the star and iii) shocks in the powerful jets, which these systems drive. Modelling of X-ray spectra from XMM-Newton and Chandra reveals the physical conditions in the emission regions and thus allows us to estimate the relatuve importance of those three components. Complementary informations comes from the analysis of the UV line profiles observed with FUSE or HST/STIS.

Publications