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ETH

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Extragalactic Astrophysics &
Observational Cosmology Group
 
Thomas Bschorr
Postal Address  
ETH Zurich
Institute of Astronomy
Department of Physics, HIT J 11.3
Wolfgang-Pauli-Strasse 27
8093 Zurich
Switzerland
Phone: ++41(0)44 633-6684
Fax: ++41 (0)44 633-1238
email: bschorr@phys.ethz.ch

Curriculum Vitae 

Education:
2007
Diploma Degree in Physics
Universität Ulm, Germany
Title: "Polarization Effects in the Cosmic Microwave Background" (pdf).
Supervisor: Prof. Frank Steiner
Co-Supervisor: Prof. Jens Bolte
 
             
Employment:
 
2007 -
PhD student, Institute of Astronomy, ETH Zurich


Research Interests 




I am doing my PhD with Prof. Carollo. I am interested in the structure and evolution of galaxies with emphasis on the population of disk galaxies in the COSMOS field.

In the COSMOS field, we have about 130000 objects down to a magnitude limit of 24 in the I-band. This big number allows us to study in a statistical way the evolution of galaxies but also challenges us, as we cannot look at each galaxy on its own. Hence, we first need an automatic classification scheme, that reliably categorizes galaxies into the different types, such as late and early types, but also according to their internal substructure.

The focus of my PhD is to study the evolution of the growth of mass with cosmic time in disk galaxies with different internal structure properties, i.e., spiral structure, floculent structure or non-axisymmmetric instabilities such as bars. This substructure can be related to the dynamical state and intrinsic properties - and thus allows us to understand the major drivers of galaxy evolution over the past 8 billion years.

I am therefore working at developing an automated classification of substructure in faint distant galaxies. I also intend to study how the presence of certain types of substructure depends on the environment of the galaxy at different epochs. Furthermore, I want to link the internal substructure to the star-formation properties of the different types of galaxies.


Galaxy images.

The image above shows some stamps of galaxies taken from the COSMOS survey, which I use to study the substructure. They are obtained, using the Advanced Camera of Survey (ACS) on board of the Hubble Space Telescope.







Links
Image galery from
- HST galery
- ESO galery
- SDSS galery
- 2MASS survey
- ESA multimedia
- selected movies, presented at the International Year of Astronomy 2009