Preprints of the Astrophysikalisches Institut Potsdam
in 1998

98-038
The role of convective boundaries
F. Herwig, T. Blöcker, D. Schönberner (added Dec. 7, 1998)

98-037
Long-term evolution of AGB wind envelopes: Insights from hydrodynamical models
M. Steffen, Schönberner, R. Szczerba (added Dec. 7, 1998)

98-036
Radio Evidence on Shock Wave Formation in the Solar Corona
Klassen A., Aurass H., Klein K.L., Hofmann A., Mann G. (added Dec. 1, 1998)

98-035
The isolated neutron star candidate RBS1223 (1RXS J130848.6+212708)
A.D. Schwope, G. Hasinger, R. Schwarz, F. Haberl, M. Schmidt (added Nov 18, 1998)

98-034
The Metallicity Effect on the Cepheid P-L relation from SMC Cepheids
Jesper Storm, Bruce W. Carney, Anne M. Fry (added Nov 17, 1998)

98-033
Rotation law and magnetic field for M dwarf models
G. Rüdiger, M. Küker (added Nov 17, 1998)

98-032
The Maunder minimum as due to magnetic \Lambda-quenching
M. Küker, R. Arlt, G. Rüdiger (added Nov 17, 1998)

98-031
Modelling of the magnetic accretion flow in HU Aquarii
Claus Heerlein, Keith Horne, A.D. Schwope (added Nov 9, 1998)

98-030
The ROSAT Bright Survey: I. Identification of an AGN sample with hard ROSAT X-ray spectra
J.-U. Fischer, G. Hasinger, A.D. Schwope, H. Brunner, Th. Boller, J. Trümper, W. Voges, S. Neizvestny (added Nov 9, 1998)

98-029
On the validity of the core-mass luminosity relation for TP-AGB stars with efficient dredge-up
F. Herwig, D. Schönberner, T. Blöcker (added Nov 4, 1998)

98-028
AGN/galaxy separation in the ROSAT Bright Survey
I. Lehmann, G. Hasinger, A.D. Schwope, Th. Boller (added Oct 8, 1998)

98-027
Accretion Stream Mapping
S. Vrielmann, A. Schwope (added Oct 2, 1998)

98-026
Tomography of Polars
A. Schwope, R. Schwarz, A. Staude, C. Heerlein, K. Horne, D. Steeghs (added Oct 2, 1998)

98-025
Evolutionary Models of White Dwarfs with Helium Cores
T. Driebe, D. Schönberner, T. Blöcker, F. Herwig (added Oct 1, 1998)

98-024
Nonthermal Radio Signatures of Coronal Disturbances with and without Coronal Mass Ejections
H. Aurass, A. Vourlidas, M. D. Andrews, B.J. Thompson, R.H. Howard, G. Mann (added Sep. 10, 1998)

98-023
Mkn298: an AGN hidden by starbursts
P. Rafanelli, V. Afanasiev, K. Birkle, P. Böhm, Th. Boller, S. Dodonov, M. Radovich, G. Richter, M. Salvato, J. Vennik (added August 26, 1998)

98-022
Spectroscopic and photometric investigations of MAIA candidate stars
G. Scholz, H. Lehmann, G. Hildebrandt, K. Panov, L.Iliev (added August 25, 1998)

98-021
Lithium Depletion in the Sun:
A Study of Mixing Based on Hydrodynamical Simulations
T. Blöcker, H. Holweger, B. Freytag, F. Herwig, H.-G. Ludwig, M. Steffen (added July 24, 1998)

98-020
The evolution of helium white dwarfs: I. The companion of the millisecond pulsar PSR J1012+5307
T. Driebe, D. Schönberner, T. Blöcker, F. Herwig (added July 24, 1998)

98-019
The new long-period AM Herculis system RX J0203.8+2959
R. Schwarz, A.D. Schwope, K. Beuermann, et al. (added July 21, 1998)

98-018
Angular momentum transport by nonlinear hydrodynamic turbulence in protoplanetary disks
A. Drecker, G. Rüdiger (added July 21, 1998)

98-017
The influence of turbulence on the solar p-mode frequencies
S. Böhmer, G. Rüdiger (added July 21, 1998)

98-016
Calibration and modelling of the SODART-OXS Bragg spectrometer onboard the SRG satellite
I. Halm, H.-J. Wiebicke, F.E. Christensen, P. Frederiksen, I. Rasmussen (added June 30, 1998)

98-015
Hydrodynamical models and synthetic spectra of circumstellar dust shells around AGB stars
II. Time-dependent simulation
M. Steffen, R. Szczerba, D. Schönberner (added May 28, 1998)

98-014
Globular Cluster Calibration of the Peak Brightness of the Type Ia Supernova 1992A and the Value of H0
M. Della Valle, M. Kissler-Patig, J. Danziger, J. Storm (added May 15, 1998)

98-013
A Baade-Wesselink Analysis of Cepheids in the Small Magellanic Cloud
Jesper Storm, Bruce W. Carney, and Anne M. Fry (added May 15, 1998)

98-012
The Karlsruhe dynamo experiment
K.-H. Rädler, E. Apstein, M. Rheinhardt, M. Schüler (added May 14, 1998)

98-011
Bifurcations in spherical MHD models
H. Fuchs, K.-H. Rädler (added May 14, 1998)

98-010
Particle acceleration efficiency and MHD characteristics of CIR-related shocks
H.-T. Classen, G. Mann, E. Keppler (added May 4, 1998)

98-009
Hydrodynamical models of Planetary Nebulae and the problem of abundance determinations
M. Perinotto, K. Kifonidis, D. Schönberner, H. Marten (added March 23, 1998)

98-008
Velocity Oscillations in Active Sunspot Groups
H. Balthasar, V. Martinez Pillet, H. Schleicher and H. Woehl (added March 23, 1998)

98-007
Identification of soft high galactic latitude RASS X-ray sources: I. A complete count-rate limited sample
H.-C. Thomas, K. Beuermann, K. Reinsch, A.D. Schwope, J. Trümper, W. Voges (added March 19, 1998)

98-006
Spiral pattern in the optical polarization of NGC 6946
Ch. Fendt, R. Beck, N. Neininger (added March 19, 1998)

98-005
Possible bending mechanisms of protostellar jets
Ch. Fendt, H. Zinnecker (added March 9, 1998)

98-004
The 09 September 1989 gamma-Ray Flare - Multi--Site Particle Acceleration and Shock--Excited Radio Emission during Quasiperpendicular and Quasiparallel Propagation
H. Aurass, A. Hofmann, H. - W. Urbarz (added Feb 18, 1998)

98-003
New space motion of Galactic globular cluster Palomar 5
R.-D. Scholz, M. Irwin, M. Odenkirchen, H. Meusinger (added Feb 11, 1998)

98-002
First results of an unbiased H2 survey for protostellar jets in Orion A
T. Stanke, M.J. McCaughrean, H. Zinnecker (added Jan 6, 1998)

98-001
The X-ray Background and the ROSAT Deep Surveys
G. Hasinger and G. Zamorani (added Jan 5, 1998)

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