The Size, Structure, and Variability of Late-Type Stars Measured ...

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Table 2.2: Diameter Measurements from Various Sources: Supergiants
λ (µm) Diam. (mas) Method ∗ Instrument ref.
α Ori
0.370 52 ± 6 AM KPNO 4m Telescope [20]
0.410 51 ± 2 AM KPNO 4m Telescope [20]
0.520 50 ± 1 AM KPNO 4m Telescope [20]
0.546 57 ± 2 AM Herschel Telescope [111]
0.550 48 ± 1 AM KPNO 4m Telescope [20]
0.633 55 ± 1 AM Herschel Telescope [111]
0.650 58 ± 1 AM KPNO 4m Telescope [20]
0.656 44 ± 1 AM KPNO 4m Telescope [20]
0.700 49 ± 3 AM Herschel Telescope [111]
0.710 54 ± 2 AM Herschel Telescope [111]
0.830 51.1 ± 1.5 I COAST [18]
0.850 46 ± 1 AM KPNO 4m Telescope [20]
0.854 43 ± 1 AM KPNO 4m Telescope [20]
1.09 42 AM Keck Telescope [104]
1.28 42 AM Keck Telescope [104]
1.64 41.5 AM Keck Telescope [104]
2.12 42 AM Keck Telescope [104]
2.2 44.2 ± 0.2 I Michelson Array [26]
3.09 48 AM Keck Telescope [104]
3.75 40.2 ± 0.2 I IOTA [69]
11.09 54.1 ± 0.5 I ISI -
11.15 52.6 - 55.8 I ISI -
11.17 54.2 ± 0.5 I ISI -
several 41.0 ± 0.8 P several [73]
α Her
2.2 32.2 ± 0.8 I Michelson Array [8]
2.2 30.90 ± 0.02 I IOTA [69]
3.75 32.8 ± 0.7 I IOTA [69]
11.15 39.3 ± 1.0 I ISI -
∗ AM: aperture masking, I: interferometry, P: infrared photomotry