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: http://ip.rsu.ru/~marsakov/paper7/p7tab1.htm
Дата изменения: Fri Feb 2 12:03:54 2007 Дата индексирования: Mon Oct 1 21:07:32 2012 Кодировка: Поисковые слова: arp 220 |
TABLE 1
Characteristic parameters of subsystems RR Lyrae field stars and globular clusters
Parameter |
Thick disk |
Proto-disk halo |
Accreted halo |
|||
RR Lyrae |
GC |
RR Lyrae |
GC |
RR Lyrae |
GC |
|
Number |
30 |
37 |
68 |
30 |
76 |
47 |
[Fe/H] |
-0.57 ± 0.05 |
-0.56 ± 0.05 |
-1.54 ± 0.04 |
-1.71 ± 0.05 |
-1.59 ± 0.04 |
-1.60 ± 0.07 |
s[Fe/H] |
0.28 ± 0.03 |
0.28 ± 0.03 |
0.36 ± 0.03 |
0.26 ± 0.03 |
0.29 ± 0.03 |
0.35 ± 0.05 |
< Q >, km/s |
198 ± 9 |
165 ± 38 |
104 ± 10 |
77 ± 33 |
-40 ± 12 |
-23 ± 54 |
sQ , km/s |
51 ± 7 |
88 ± 15 |
84 ± 7 |
129 ± 19 |
101 ± 8 |
140 ± 18 |
< e > |
0.23 ± 0.03 |
0.13 ± 0.04 |
0.54 ± 0.03 |
0.53 ± 0.06 |
0.75 ± 0.03 |
0.59 ± 0.06 |
lim Rmax, kpc |
13 |
7 |
18 |
10 |
40 |
20 |
lim Zmax, kpc |
2 |
3 |
10 |
10 |
22 |
20 |
Zo, kpc |
0.74 ± 0.05 |
1.00 ± 0.02 |
3.10 ± 0.10 |
2.50 ± 0.50 |
6.40 ± 0.50 |
8.50 ± 1.50 |
gradR[Fe/H], kpc-1 |
-0.03 ± 0.04 |
-0.01 ± 0.02 |
-0.00 ± 0.01 |
-0.03 ± 0.02 |
-0.00 ± 0.01 |
-0.03 ± 0.01 |
gradZ[Fe/H], kpc-1 |
-0.23 ± 0.10 |
-0.16 ± 0.06 |
-0.02 ± 0.01 |
-0.03 ± 0.02 |
-0.00 ± 0.01 |
-0.03 ± 0.01 |
< t >, Gyr |
12.5 ± 0.5 |
15.5 ± 0.5 |
13.8 ± 0.3 |
|||
st , Gyr |
1.4 ± 0.3 |
0.8 ± 0.2 |
1.4 ± 0.2 |
|||
[Mg/Fe] |
0.26 ± 0.02 |
0.35 ± 0.02 |
0.29 ± 0.03 |
|||
s[Mg/Fe] |
0.17 ± 0.01 |
0.14± 0.02 |
0.15± 0.02 |
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