The Milky Way and Beyond (43 page)

Read The Milky Way and Beyond Online

Authors: Britannica Educational Publishing

Shu, Frank H.,
24

Sirius,
46
,
50
,
53
,
57
,
68
,
81
,
89
,
104
,
122
,
125
–126

solar motion,
40
–44

solar wind,
46
,
48
,
81

speckle interferometry,
67

spectroscopic binary stars,
60
,
61
,
62
,
63
,
67
,
124

spiral galaxies, explanation of,
178
–181

SS Cygni,
73
,
77

star clusters

dynamics of,
119
–120

in external galaxies,
120
–122

globular clusters,
21
,
23
,
25
,
29
,
30
,
31
,
32
,
34
,
36
,
38
,
43
–44,
70
,
71
–72,
74
,
76
,
79
,
110
,
112
,
113
,
114
–117,
119
,
120
,
121
,
122
,
151
,
165
,
166
,
170
,
171
,
173
,
174
,
176
,
185
,
195

OB and T associations,
90
,
112
,
117
–119,
120
,
121
,
199

open clusters,
32
,
34
,
35
,
38
,
71
,
72
,
110
–114,
118
,
119
,
120
,
121
,
124
,
170
,
171

stars

atmosphere of,
80
–82

brightness and colour of,
53
–54,
92
–93,
115

categories of,
50

distances to,
49
–52

end states of,
102
–109

formation and evolution of,
14
,
89
–102,
139
–140,
144
,
152
–153,
155

internal structure of,
82
–88,
92
–93

masses of,
59
–60

motion of,
38
–40,
52
–53

positions of,
52
–53

principal population types,
28
–31

size and activity of,
45
–49

temperatures of,
59
,
92
,
93
,
95
,
98
,
99

stellar associations, explanation of,
45
,
110
,
118

stellar luminosity function,
31
–35

stellar winds,
46
–49,
137
,
143
,
151
,
152

subgiant stars,
58
,
68
,
69

Sun, atmosphere and mechanism of energy transport,
80
–81,
85
,
87
–88

supergiant nebulae,
145
–146

symbiotic stars,
154

T

Tammann, Gustav,
199

Tarter, Jill,
95

Taylor, Joseph,
106
–107

Trifid Nebula,
131
,
162

Trumpler, Robert J.,
114

Tully-Fisher relation,
185

turbulence (in nebulae),
16
,
136
–137,
138

Tycho's nova,
154
,
156
,
158

U

Ursa Major,
113
,
123
,
179

Ursa Minor,
37
,
124
,
186

V

van Maanen rotation,
171
–172

van Rhijn, Pieter J.,
31

van Rhijn function,
31
,
32
,
33
,
34
,
35

variable stars, explanation of,
73
–80

Vaucouleurs, Gerard de,
180
,
182
,
188

Vega,
46
,
67
,
123
,
126

Vela Pulsar,
105
,
107

Virgo A,
192
,
199
–200

Virgo cluster,
122
,
184
,
185
,
192
,
196
,
199
,
200

visual binary stars,
60
–61,
67
,
72

W

Wallerstein, George,
30

white dwarfs,
14
,
34
,
35
,
36
,
39
,
46
,
50
,
62
,
67
,
69
,
70
,
71
,
72
,
76
,
77
,
78
,
84
,
94
,
101
,
103
–104,
105
,
126
,
153
,
154
,
167

Wilkinson Microwave Anisotropy Probe,
44

Wolf, Charles-Joseph-Étienne,
98

Wolf-Rayet stars,
97
–98,
152

Z

Zanstra, H.,
152

Zwicky, Fritz,
197

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