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Discovery of starspots on Vega
Astronomy and Astrophysics, 2015Context. The theoretically studied impact of rapid rotation on stellar evolution needs to be compared with these results of high-resolution spectroscopy-velocimetry observations. Early-type stars present a perfect laboratory for these studies. The prototype A0 star Vega has been extensively monitored in recent years in spectropolarimetry.
Böhm, T. +10 more
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The 1973 RT Andromedae Starspot
Publications of the Astronomical Society of Australia, 1991AbstractAn analysis of 1973 RT Andromedae B and V light curves is presented. The results are fitted into a spot evolution sequence found in a previous study which used the same technique on different data. The new values of the system’s physical parameters are in general agreement with the earlier ones.
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Astrophysics, 2014
Long-term, multiband photometric observations of 8 young PMS stars are used to construct models for their starspots. It is shown that the average density of starspots is up to 40 % of the total surface of a star (V824 Ara), while the difference in temperatures between a quiet photosphere and a spot ranges from 870 K (AB Dor) to 1700-1800 K (PZ Tel ...
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Long-term, multiband photometric observations of 8 young PMS stars are used to construct models for their starspots. It is shown that the average density of starspots is up to 40 % of the total surface of a star (V824 Ara), while the difference in temperatures between a quiet photosphere and a spot ranges from 870 K (AB Dor) to 1700-1800 K (PZ Tel ...
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Starspot mapping with robotic telescopes
Astronomische Nachrichten, 2002Robotic telescopes for photometry and imaging have been around for several years. They have been very valuable to monitor light variations due to changing spot patterns on active stars. Two new spectroscopic robotic telescopes will come online in the near future, one in Tenerife and one in Arizona.
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