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Table 4

Observations of the circumstellar envelopes.

IRAS Tel.a Detectionb Envelope S.B.c Ellipticity PA a t exp Cored
(B/V) (B0) (a/b) (°) (′′) (yr)

00193−4033 NTT ... ...  <27.7  <27.6 ... ... ... ... ...
01037+1219 VLT st env 24.3e 25.2 1.07 ± 0.03 89 5.2 840 pc
04575+1251 NTT ... ...  <27.2  <25.5 ... ... ... ... ...
05418−3224 NTT st ...  <26.9f  <26.8 ... ... ... ... ...
06012+0726 NTT ... ...  <25.6e  <24.7 ... ... ... ... ...
06255−4928 NTT st ...  <26.8f  <26.6 ... ... ... ... ...
07454−7112 NTT st env 25.8 25.1 1.12 ± 0.03 5 3.9 1290 pc
09116−2439 NTT ... env 26.7 25.9 1.11 ± 0.04 47 4.6 1600 ...
09452+1330 VLT st env 25.0g 25.6 1.03 ± 0.02 150 45.8 1770 pc
09521−7508 NTT st ...  <26.6f  <25.3 ... ... ... ... ...
10323−4611 NTT st env 25.9 25.0 1.20 ± 0.04 12 4.1 550 pc
12384−4536 NTT st env 25.8 25.3 1.14 ± 0.03 38 3.6 2320 ...
14591−4438 NTT ... env 25.5 24.8 1.10 ± 0.03 124 2.7 420 ...
16029−3041 NTT ... env 24.6g 23.8 1.07 ± 0.02 41 8.7 4660 ...
17319−6234 NTT ... env 24.2g 23.9 1.05 ± 0.02 65 8.5 2760 ...
18240+2326 OHP ... env 25.3e 25.6 1.14 ± 0.03 46 5.0 1440 ...
18467−4802 VLTh ... env 23.7e 24.5 1.03 ± 0.02 113 5.0 2310 ...
19178−2620 NTT st env 24.5 24.0 1.29 ± 0.03 156 5.4 3130 pc
20042−4241 NTT st ...  <27.6f  <27.4 ... ... ... ... ...
20077−0625 DT ... env 23.6e 24.3 1.28 ± 0.02 58 14.7 3310 pc
23257+1038 NTT ... env 25.4e 25.9 1.01 ± 0.03 157 5.2 3780 pc
23320+4316 OHP st env 26.8 26.2 1.13 ± 0.06 140 7.0 1760 pc

Notes. 

(a)

Telescope used for photometry and imaging shown in Figs. 16 and Fig. A.1.

(b)

Detections in V or B: st = star, env = envelope.

(c)

Surface brightness in mag arsec-2 in B or V (designated in footnote) and effective B0 (see text).

(d)

Core: pc = polar core.

(e)

V-band measurement.

(f)

Nominal limit based on extended source because of bright central star.

(g)

V surface brightness also measured: see Sect. 3.3.

(h)

VLT used for photometry, HST/ACS used for imaging.

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