Interferometry of the E Corona

G. Henderson

doi:10.1364/AO.9.002635

Applied Optics
Vol. 9,
Issue 12,
pp. 2635-2642
(1970)
•https://doi.org/10.1364/AO.9.002635

Interferometry of the E Corona

G. Henderson

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G. Henderson, "Interferometry of the E Corona," Appl. Opt. 9, 2635-2642 (1970)

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Abstract

Descriptions are given of Fabry-Perot spectrometer systems used in the total eclipses of 1965, 1966, and 1970 to observe the emission lines 5303 Å, Fe xiv and 6374 Å, Fe x at different points in the solar corona. Some results of coronal temperature measurements for the 12 November 1966 eclipse are presented.

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Position Angle	Radius	Half-width	Temperature (K × 10⁻⁶)
319	1.15	0.566	1.1
316	1.15	0.616	1.5
313	1.16	0.613	1.5
303	1.18	0.624	1.5
298	1.19	0.611	1.4
291	1.20	0.701	1.9
284	1.21	0.553	1.2
131	1.19	0.694	1.9
126	1.19	0.611	1.4
117	1.17	0.494	0.9
112	1.16	0.537	1.1
102	1.15	0.689	1.8
097	1.14	0.428	0.7
091	1.13	0.488	0.9
084	1.13	0.618	1.5
073	1.11	0.506	1.0
068	1.10	0.595	1.4
056	1.10	0.492	0.9
049	1.10	0.722	2.0
038	1.09	0.653	1.6
020	1.10	0.643	1.6
015	1.10	…	…
005	1.10	0.561	1.2
358	1.11	0.537	1.1
349	1.12	0.701	1.9
340	1.13	0.727	2.0
331	1.14	0.518	1.0
325	1.15	0.518	1.0
315	1.24	0.666	1.7
308	1.25	…	…
017	1.15	0.628	1.5
010	1.16	0.672	1.7
000	1.17	0.752	2.2
354	1.18	0.440	0.7
326	1.22	0.631	1.5
320	1.23	0.651	1.6
130	1.36	0.578	1.3
125	1.34	0.807	2.5
118	1.34	0.611	1.4
113	1.32	0.480	0.9
104	1.31	0.522	1.1
100	1.30	0.509	1.0
090	1.28	0.514	1.0
083	1.26	0.558	1.2
108	1.45	0.758	2.2
097	1.43	0.826	2.6
092	1.41	0.699	1.9
081	1.40	0.647	1.6
070	1.39	…	…
110	1.56	0.580	1.3
106	1.55	0.828	2.6
101	1.54	…	…
099	1.53	0.554	1.2

Position Angle	Radius	Temperature (K × 10⁻⁶)	Mean temperature	Half-width
260	1.70	1.3		0.580
260	1.70	1.4		0.594
260	1.70	1.0		0.500
260	1.70	0.7	1.1	0.425
258	1.78	1.9		0.709
258	1.78	1.7		0.660
258	1.78	1.8		0.675
258	1.78	2.1		0.738
258	1.78	1.5	1.8	0.620
256	1.91	2.0		0.719
256	1.91	1.5		0.616
256	1.91	0.9		0.483
256	1.91	…	1.5	…
255	2.00	1.7		0.655
255	2.00	2.2		0.762
255	2.00	2.5		0.811
255	2.00	1.4	2.0	0.602

Position Angle	Radius	Half-width	Temperature (K × 10⁻⁶)
319	1.15	0.566	1.1
316	1.15	0.616	1.5
313	1.16	0.613	1.5
303	1.18	0.624	1.5
298	1.19	0.611	1.4
291	1.20	0.701	1.9
284	1.21	0.553	1.2
131	1.19	0.694	1.9
126	1.19	0.611	1.4
117	1.17	0.494	0.9
112	1.16	0.537	1.1
102	1.15	0.689	1.8
097	1.14	0.428	0.7
091	1.13	0.488	0.9
084	1.13	0.618	1.5
073	1.11	0.506	1.0
068	1.10	0.595	1.4
056	1.10	0.492	0.9
049	1.10	0.722	2.0
038	1.09	0.653	1.6
020	1.10	0.643	1.6
015	1.10	…	…
005	1.10	0.561	1.2
358	1.11	0.537	1.1
349	1.12	0.701	1.9
340	1.13	0.727	2.0
331	1.14	0.518	1.0
325	1.15	0.518	1.0
315	1.24	0.666	1.7
308	1.25	…	…
017	1.15	0.628	1.5
010	1.16	0.672	1.7
000	1.17	0.752	2.2
354	1.18	0.440	0.7
326	1.22	0.631	1.5
320	1.23	0.651	1.6
130	1.36	0.578	1.3
125	1.34	0.807	2.5
118	1.34	0.611	1.4
113	1.32	0.480	0.9
104	1.31	0.522	1.1
100	1.30	0.509	1.0
090	1.28	0.514	1.0
083	1.26	0.558	1.2
108	1.45	0.758	2.2
097	1.43	0.826	2.6
092	1.41	0.699	1.9
081	1.40	0.647	1.6
070	1.39	…	…
110	1.56	0.580	1.3
106	1.55	0.828	2.6
101	1.54	…	…
099	1.53	0.554	1.2

Position Angle	Radius	Temperature (K × 10⁻⁶)	Mean temperature	Half-width
260	1.70	1.3		0.580
260	1.70	1.4		0.594
260	1.70	1.0		0.500
260	1.70	0.7	1.1	0.425
258	1.78	1.9		0.709
258	1.78	1.7		0.660
258	1.78	1.8		0.675
258	1.78	2.1		0.738
258	1.78	1.5	1.8	0.620
256	1.91	2.0		0.719
256	1.91	1.5		0.616
256	1.91	0.9		0.483
256	1.91	…	1.5	…
255	2.00	1.7		0.655
255	2.00	2.2		0.762
255	2.00	2.5		0.811
255	2.00	1.4	2.0	0.602

Abstract

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Figures (18)

Tables (2)

Equations (2)

Applied Optics