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Table 6

Result of residual silicate CSE emission at 9.7 μm.

DDOD(a) Sect. 3.2 Observation (b) Result (c)
E(B–V)

RS Pup
         
ζ Gem
         
η Aql
         
V Cen (d)
         
SU Cyg

Notes. The silicate absorption due to interstellar extinction is calculated (using Eq. (4)) based on reddenings from DDOD. Observed absorption of silicate from Spitzer is used together with Eq. (3) in order to derive , the silicate emission due to a CSE. (a)David Dunlap Observatory Database. Standard error is the deviation of the measurement. (b) Errors correspond to Spitzer uncertainties (see error bars in Fig. 4) (c) Errors are given by summing quadratically the precedent absorption uncertainties. (d) If Eq. (5) for V Cen is considered we obtain and (see Fig. 5).

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