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Dive into the research topics where Susanne Friedrich is active.

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Featured researches published by Susanne Friedrich.


Archive | 1992

Calculations of line positions in the presence of magnetic and electric fields in white dwarf spectra

Susanne Friedrich; Roland Östreicher; Hanns Ruder

We present first results of our line position calculations in the presence of strong magnetic and electric fields, as one can find in the dense atmospheres of magnetic White Dwarfs. The problem was solved by second order perturbation theory with hydrogenic wavefunctions calculated in a pure magnetic field and arbitrary orientations of the electric and magnetic fields.


Astronomy and Astrophysics | 2002

Search for variations in circular-polarization spectra of the magnetic white dwarf LP 790–29

Stefan Jordan; Susanne Friedrich


Astronomy and Astrophysics | 1996

RX J1940.1-1025 : A NEW ASYNCHRONOUS AM HERCULIS SYSTEM

Susanne Friedrich; R. Staubert; Georg Lamer; Michael König; R. Geckeler; M. Bassgen; W. Kollatschny; R. Ostreicher; S. D. James; R. K. Sood


Astronomy and Astrophysics | 1994

Line broadening in the presence of strong magnetic fields

Susanne Friedrich; R. Östreicher; H. Ruder; G. Zeller


Astronomy and Astrophysics | 1994

On the newly discovered 3.4 hour modulated X-ray source (RXJ1940.1-1025) near NGC 6814

R. Staubert; Michel Koenig; Susanne Friedrich; Georg Lamer; R. K. Sood; James Sue; D. P. Sharma


Archive | 2000

Doppler-mapping of the Asynchronous Polars BY Cam and V1432 Aql

Susanne Friedrich; Robert Schwarz; A. D. Schwope; Arnold Staude; Ralf D. Geckeler; R. Staubert


Astronomy and Astrophysics | 1997

The Seyfert galaxy NGC 6814 { a highly variable X-ray source

Michael König; Susanne Friedrich; Rüdiger Staubert; Jens Timmer


Archive | 1996

The new non-synchronous AM Her system RX J1940.1-1025.

R. Staubert; Susanne Friedrich; Ralf D. Geckeler; Georg Lamer; Michael König


Archive | 1995

RX J1940.2-1025: an Asynchronous Magnetic CV

B. Staubert; Susanne Friedrich; Georg Lamer; Michael König; Ralf D. Geckeler; Ritesh Sood


Astronomy and Astrophysics | 1995

ROSAT observation of GX 1+4

Peter Predehl; Susanne Friedrich; R. Staubert

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R. Staubert

University of Tübingen

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Georg Lamer

Leibniz Institute for Astrophysics Potsdam

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R. K. Sood

University of New South Wales

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H. Ruder

University of Erlangen-Nuremberg

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Hanns Ruder

University of Tübingen

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Jens Timmer

University of Freiburg

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