Table 1
Shells of NGC 3923.
| Label | r [″] | R[kpc] | a [a0] |
|
|
|||
| a | + 1170 | 130.7 | 0.2 |
| b | −840 | 93.8 | 0.3 |
| c | + 630 | 70.4 | 0.4 |
| d | −520 | 58.1 | 0.4 |
| e | + 365 | 40.8 | 0.6 |
| f | −280 | 31.3 | 0.8 |
| g | + 203 | 22.7 | 1.1 |
| h | −148.5 | 16.6 | 1.5 |
| i | + 147.3 | 16.5 | 1.5 |
| j | + 128.1 | 14.3 | 1.7 |
| k | −103.6 | 11.6 | 2.2 |
| l | + 99.9 | 11.2 | 2.2 |
| m | −79.6 | 8.9 | 2.9 |
| n | + 72.8 | 8.1 | 3.1 |
| o | −67.0 | 7.5 | 3.4 |
| p | + 64.1 | 7.2 | 3.6 |
| q | + 60.4 | 6.7 | 3.9 |
| r | −55.5 | 6.2 | 4.2 |
| s | + 51.2 | 5.7 | 4.6 |
| t | −44.0 | 4.9 | 5.5 |
| u | + 41.5 | 4.6 | 5.9 |
| v | −37.7 | 4.2 | 6.6 |
| w | + 34.3 | 3.8 | 7.3 |
| x | + 29.3 | 3.3 | 8.8 |
| y | −28.7 | 3.2 | 9.0 |
| A | + 19.4 | 2.2 | 14 |
| B | −18.0 | 2.0 | 15 |
Notes. r: observed distance of the shell from the center of NGC 3923, data compilation taken from Bílek et al. (2013). The plus sign means that the shell is situated on the northeastern side of the galaxy, the minus sign that it is on the southwestern side. R: the radius of the shell in kiloparsec assuming a galaxy distance of 23 Mpc. a: the gravitational acceleration at the radius of the shell for the potential derived in Bílek et al. (2013).
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