Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Todt, Helge (Dr.)"'
We present the analysis of infrared (IR) observations of the planetary nebula NGC40 together with spectral analysis of its [WC]-type central starHD826. Spitzer IRS observations were used to produce spectral maps centred at polycyclic aromatic hydroca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______266::f9dbdbfa1d9367f4759449669cdd9fc5
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/49514
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/49514
Autor:
Shenar, Tomer, Hainich, Rainer, Todt, Helge (Dr.), Moffat, Anthony F. J., Sander, Andreas Alexander Christoph, Oskinova, Lida M. (apl. Prof. Dr.), Ramachandran, Varsha (Dr.), Munoz, M., Pablo, H., Sana, Hugues, Hamann, Wolf-Rainer (Prof. Dr.)
Context. SMC AB6 is the shortest-period (P = 6.5 d) Wolf-Rayet (WR) binary in the Small Magellanic Cloud. This binary is therefore a key system in the study of binary interaction and formation of WR stars at low metallicity. The WR component in AB6 w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______266::e2227b07176bfd06b98b0d106ac19c73
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/52156
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/52156
Autor:
Sander, Andreas Alexander Christoph (Dr. rer. nat.), Fürst, F., Kretschmar, P., Oskinova, Lida M. (apl. Prof.), Todt, Helge (Dr. rer. n.), Hainich, Rainer (Dr. rer. n.), Shenar, Tomer (Dr.), Hamann, Wolf-Rainer (Prof. Dr.)
Aims. To gain a realistic picture of the donor star in Vela X-1, we constructed a hydrodynamically consistent atmosphere model describing the wind stratification while properly reproducing the observed donor spectrum. To investigate how X-ray illumin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______266::47ec6ee254119a1d8cbb1f1c2c80c611
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/53498
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/53498
Autor:
Shenar, Tomer (M.Sc.), Oskinova, Lida M. (Dr.), Jaervinen, S. P., Luckas, P., Hainich, Rainer (Dr.), Todt, Helge (Dr.), Hubrig, Swetlana, Sander, Andreas Alexander Christoph (Dr. rer. nat.), Ilyin, Ilya, Hamann, Wolf-Rainer (Prof. Dr.)
Mass-loss rates of massive, late type main sequence stars are much weaker than currently predicted, but their true values are very difficult to measure. We suggest that confined stellar winds of magnetic stars can be exploited to constrain the true m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______266::a6211fd7a1bd1b5996da566164fd0ea7
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/54544
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/54544
Autor:
Reindl, Nicole, Rauch, Thomas, Miller Bertolami, Marcelo Miguel, Todt, Helge (Dr. rer. n), Werner, K.
SAO 244567 is a rare example of a star that allows us to witness stellar evolution in real time. Between 1971 and 1990, it changed from a B-type star into the hot central star of the Stingray Nebula. This observed rapid heating has been a mystery for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______266::fb3c3cee1baf3fa31834813bd011b374
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/56365
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/56365
Autor:
Hamann, Wolf-Rainer (Prof. Dr.), Gräfener, G., Liermann, A., Hainich, Rainer (Dr. rer. nat.), Sander, Andreas Alexander Christoph (Dr. rer. nat.), Shenar, Tomer (Dr.), Ramachandran, Varsha (Dr.), Todt, Helge (Dr. rer. nat.), Oskinova, Lida M. (apl Prof.)
Publikováno v:
Astronomy & Astrophysics
Comprehensive spectral analyses of the Galactic Wolf-Rayet stars of the nitrogen sequence (i.e. the WN subclass) have been performed in a previous paper. However, the distances of these objects were poorly known. Distances have a direct impact on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::99c12bcf11765d3cdbd11a19684bbd37
