| Slit position | R | 
|
|
|
|
|
[
 ]
|
[
]
|
[
]
|
[
 ]
|
[
]
|
||
| F59 filtera: | ||||||
| 15
E
|
(comb) | 38.5 | 2.0 | 3.3 | 20.2 | 1.6 |
| 15
W
|
(comb) | 40.7 | 2.0 | 3.3 | 19.5 | 1.6 |
| 25
E
|
(comb) | 39.9 | 3.2 | 3.5 | 17.8 | 1.6 |
| all | 39.7 | 1.4 | 3.5 | 19.2 | 0.9 | |
| F77 filter: | ||||||
| 15
E
|
(769.9) | 40.3 | 2.0 | 1.8 | 19.6 | 1.8 |
| 15
E
|
(769.9) | 40.4 | 2.0 | 2.2 | 19.6 | 0.8 |
| 15
E
|
(766.5) | 40.2 | 2.0 | 1.9 | 19.6 | 1.6 |
| 15
W
|
(769.9) | 40.2 | 2.0 | 2.3 | 20.5 | 2.0 |
| 15
W
|
(769.9) | 41.2 | 2.0 | 2.7 | 19.6 | 0.8 |
| 15
W
|
(766.5) | 39.3 | 2.0 | 2.3 | 20.3 | 1.8 |
| 25
E
|
(769.9) | 39.4 | 2.8 | 3.5 | 19.3 | 1.8 |
| 25
E
|
(769.9) | 39.6 | 2.8 | 3.7 | 19.4 | 1.0 |
| 25
E
|
(766.5) | 39.6 | 2.8 | 3.1 | 19.7 | 1.8 |
| all | 40.1 | 0.8 | 2.6 | 19.7 | 0.6 | |
Notes. The results are corrected for the projection. The columns give the radius and uncertainty in the radius (R and ), the width of the shell (,
measured as the FWHM of the line along the spatial axis), and the
expansion velocity and uncertainty in the expansion velocity (
and
).
(a) The NaD doublet lines were added and averaged before fitting an ellipse (see text for details).
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