Open Access

Table 1

Time dependence of very broadly defined local extrema (MAX/min) of main observables of γ Cas during its high-activity episode in 1932–1942.

Time E/CorEW V/R Emiss. width Sharp emiss. Shell Veiling Col temp Brightness n
1932 Jul./Aug.
min
Min MAX
1933 Jan./Feb. Min MAX 14
Min MAX
Min MAX Min 10
1933 Jul./Aug. MAX Min y?
MAX y?
MAX y? MAX 18
1934 Jan./Feb. MAX Min MAX
MAX min MAX 13
MAX min
1934 Jul./Aug. MAX min
MAX Min Min 17
MAX Min Min 17
1935 Jan./Feb. MAX Min
Min
Min 9
1935 Jul./Aug. Min MAX
MAX Y Min MAX 20
MAX Y Min 13
1936 Jan./Feb. Min MAX Y min
Min MAX YY min
MAX YY MAX
1936 Jul./Aug. Y MAX
Min MAX Y MAX 26
Min MAX MAX
1937 Jan./Feb. MAX MAX
MAX MAX Min MAX
MAX Min MAX Min MAX
1937 Jul./Aug. MAX Min MAX Min MAX 32
MAX Min MAX
min min
1938 Jan./Feb. Y? Min
Y MAX 21
Y MAX MAX
1938 Jul./Aug. Min Min Y MAX MAX
Min y? MAX MAX 23
Min
1939 Jan./Feb. Min
MAX Min Y Min MAX
MAX Y Min
1939 Jul./Aug. YY
YY
MAX Y Min 10
1940 Jan./Feb. MAX Y Min MAX Min
Min Y MAX Min
Min MAX y MAX Min
1940 Jul./Aug. Min MAX Min Min
Min Y Min Min
Min Y Min 9
1941 Jan./Feb. Min y MAX
Min MAX
Min MAX MAX
1941 Jul./Aug. Min MAX MAX
Min MAX MAX
Min MAX 7
1942 Jan./Feb. Min
Min
Min MAX
1942 Jul./Aug. Min MAX
Min

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