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werden. Abb. 9 (rechts) zeigt, dass der Massenverlust
zeitlich stark zugenommen haben muss: von 2 bis 10
Erdmassen pro Jahr innerhalb einer Zeitspanne von nur
30.000 Jahren. Während der Zeit von 50.000 Jahren hat
der Stern etwa 0,5 Sonnenmassen an seine Umgebung
abgegeben!
Ausgewählte Publikationen Selected Publications
Carroll, T.A., Kopf, M., Ilyin, I. and Strassmeier, K.G.
Cayrel, R., Steffen, M., Chand, H., Bonifacio, P., Spite, M.,
(2007): Zeeman-Doppler imaging of late-type stars:
Spite, F., Petitjean, P., L., Ludwig, H.-G., Caffau, E. (2007):
The surface magnetic field of II Peg, Astronomische
Line shift, line asymmetry, and the 6Li/7Li isotopic ratio
Nachrichten 328, 1043
determination, Astronomy & Astrophysics 473, L37
Korhonen, H., Berdyugina, S.V., Hackman, T., Ilyin, I.V.,
Wedemeyer-Böhm, S., Steffen, M. (2007): Carbon mon-
Strassmeier, K.G., Oláh, K. Weber, M., Rice, J.B. and
oxide in the solar atmosphere. II. Radiative cooling
Tuominen, I. (2007): Study of FK Comae Berenices. V.
by CO lines, Astronomy & Astrophysics 462, L31
Spot evolution and detection of surface differential
rotation, Astronomy & Astrophysics 476, 881
Kõvári, Z., Bartus, J., Strassmeier, K.G., Oláh, K., Weber,
M., Rice, J.B. and Washuettl, A. (2007): Doppler imaging
of stellar surface structure. XXIII. The ellipsoidal K giant
binary Andromedae, Astronomy & Astrophysics 463, 1071
Strassmeier, K. G., Rice, J. B. (2006): First Doppler images of the very young K2-dwarf PW Andromedae =
HD 1405, Astronomy & Astrophysics 460, 751
Hubrig, S., González, J.F., Savanov, I., Schöller, M.,
Ageorges, N., Cowley, C.R., Wolff, B. (2006): Inhomogeneous surface distribution of chemical elements
Carroll, T.A. and Kopf, M. (2007): The meso-structured
in the eclipsing binary ARAur, a new challenge for
magnetic atmosphere. A stochastic polarized radiative
our understanding of HgMn stars, Monthly Notices of
transfer approach, Astronomy & Astrophysics 468, 323
the Royal Astronomical Society 371, 1953
Strassmeier, K.G., Carrol, T., Rice, J.B., Savanov, I.S.
Fröhlich, H.-E., Kroll, P., Strassmeier, K.G. (2006): The
(2007): Resolving stellar surface spots, Memorie della
RS CVn binary HK Lacertae, long-term photometry
Societa Astronomica Italiana 78, 278
from Sonneberg sky-patrol plates, Astronomy & As-
Kovári, Z., Bartus, J., Strassmeier, K.G., Vida, K., Vanda,
trophysics 454, 295
M.A., Oláh, K. (2007): Anti-solar differential rotation
Oláh, K., Korhonen, H., Kovari, Z., Forgács-Dajka, E.,
on the active K-giant σ Geminorum, Astronomy &
Strassmeier, K.G. (2006): Study of FK Comae Beren-
Astrophysics 474, 165
ices. VI. Spot motions, phase jumps and a flip-flop
Oláh, K., Strassmeier, K. G., Granzer, T., Soon, W.,
Baliunas, S.L. (2007): Changing stellar activity cycles,
Astronomische Nachrichten, 328, 1072
Järvinen, S.P., Berdyugina, S.V., Korhonen, H., Ilyin, I.,
Tuominen, I. (2007): EK Draconis. Magnetic activity
in the photosphere and chromosphere, Astronomy &
Astrophysics 472, 887
Vreeswijk, P.M., Ledoux, …, Andersen, M. I., …, Savaglio, S., Wijers, R.A.M.J. (2007): Rapid-response mode
VLT/UVES spectroscopy of GRB060418. Conclusive
from time-series modelling, Astronomy & Astrophysics
452, 303
Ayres, T.R., Harper, G.M., Brown, A., Korhonen, H., Ilyin,
I.V., Redfield, S., Wood, B.E. (2006): The Remarkable
Far-Ultraviolet Spectrum of FK Comae Berenices,
King of Spin, Astrophysical Journal 644, 464
Savanov, I., Hubrig, S., Mathys, G., Ritter, A., Kurtz,
D.W. (2006): Search for radial velocity and magnetic
field pulsational variations in the roAp star γ Equulei,
Astronomy & Astrophysics 448, 1165
evidence for UV pumping from the time evolution of
Jeffery, C.S., Schönberner, D. (2006): Stellar archaeol-
Fe II and Ni II excited- and metastable-level popula-
ogy, the evolving spectrum of FG Sagittae, Astrono-
tions, Astronomy & Astrophysics 468, 83
my & Astrophysics 459, 885
Schönberner, D., Jacob, R., Steffen, M., Sandin, C.
(2007): The evolution of planetary nebulae IV. On
the physics of the luminosity function, Astronomy &
Astrophysics 473, 467
37