Table 6:
Relative gradients, observed and calculated:
is taken
as unit.
| Source |
U-B |
B-V |
B-R |
V-I |
V-J |
V-K |
J-K |
| Obs. |
2.38 |
1.00 |
1.24 |
0.92 |
2.06 |
3.44 |
1.41 |
| W94 |
2.45 |
1.00 |
1.48 |
1.17 |
4.24 |
5.14 |
0.90 |
| Bal94 |
2.57 |
1.00 |
1.86 |
1.68 |
5.36 |
6.68 |
1.32 |
| BC04 |
2.03 |
1.00 |
1.58 |
1.18 |
3.36 |
3.76 |
1.18 |
| Wal92 |
0.32 |
1.00 |
2.17 |
3.17 |
5.25 |
8.11 |
2.86 |
| id |
0.92 |
1.00 |
2.45 |
3.83 |
6.31 |
9.75 |
3.44 |
Sources: Obs. Mean observed gradients from Table 4; W94 calculated
from Worthey (1994), range [Fe/H] -0.25 to 0.25, age 12 Gyr; Bal94 calculated from
Bressan et al. (1994), range Z=0.008 to 0.05, age 12.56 Gyr; BC03 calculated from
Bruzual & Charlot (2003) Z=0.008 to 0.05, age 12 Gyr; Wal92 dust induced colour
gradients calculated from Witt et al. (1992), Table 3E, Tau(V) = 4 (1st. line) and
Tau(V) = 1 (2nd. line). The following columns
show the relative gradients
 /
for U-B, B-V, ....
|
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