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Table 2

Sizes of debris disks estimated from images at long wavelength.

R in R out R mean ΔR ΔR/Rmean λ Ref.
(AU) (AU) (AU) (AU) (μm)

Vega A0V <85 >105 >0.2 1300 IRAM-PdB 1
HD 21997 A3IV/V 55 ± 16 <108a <2 886 ALMA 2
Fomalhaut A4V 141.5 16 ± 3 0.1 857 ALMA 3
HD 107146 G2V 50 170 1.1 880 ALMA 4
η Corvi F2V 164 ± 4 <60 <0.3 850 SCUBA2 5
Sun G2V 30 50 0.5 6
ϵ Eridani K2V 57 ± 1.3 <22 <0.4 1200 IRAM-30 m 7
AU Mic M1V 40 ± 0.4 1.3 1300 ALMA 8

Notes.

(a)

Angular resolution is 1.5′′, the belt is smaller than beam, hence ΔR< 1.5′′ × 72 pc = 108 AU.

Reference. (1) Piétu et al. (2011); (2) Moór et al. (2013); (3) Boley et al. (2012); (4) Hughes et al. (2011); (5) Duchêne et al. (2014); (6) Stern & Colwell (1997); (7) this work; (8) MacGregor et al. (2013).

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