M87, Globular Clusters, and Galactic Winds: Issues in Giant Galaxy Formation

66 Pages·0.88 MB·English

by  W. E. Harris

8
9
9
1

n
a
J

2
2

1
v
4 Table 1. Census of CFHT HRCam Images
1
2
1
0 Field Filter Exposures Airmass FWHM
8
9 Central Field V 4×600 sec 1.19−1.35 0′.′72
/
h Central Field R 26×500 sec 1.08−1.31 0′.′73
p Central Field I 4×500 sec 1.35−1.48 0′.′73
-
o East (Background) R 12×600 sec 1.01−1.35 0′.′58
r
t
s
a
:
v
i
X
r
a
1

Table 2. Photometry of Brightest Clusters
X′′ Y′′ R V −R R−I X′′ Y′′ R V −R R−I
-28.57 -11.67 19.03 0.55 0.74 -36.81 -3.01 20.70 0.47 0.72
3.70 25.88 19.30 0.48 0.70 6.03 15.56 20.73 0.49 0.66
10.59 -36.66 19.60 0.60 0.65 5.28 23.06 20.73 0.47 0.75
22.65 -36.81 19.70 0.62 0.66 87.72 -38.18 20.74 0.63 0.60
8 -12.34 -15.05 19.83 0.50 0.63 -24.04 -42.40 20.75 0.48 0.71
9
68.59 -34.00 19.84 0.55 0.65 -58.04 -19.33 20.76 – –
9
21.54 -6.39 19.95 0.46 0.58 -43.58 -0.46 20.77 0.50 0.77
1
12.84 -34.67 20.04 0.54 0.58 -5.28 -7.87 20.77 – –
n
a 50.22 -61.90 20.09 0.55 0.47 9.93 -27.16 20.79 0.52 0.86
J
-56.79 -75.42 20.13 0.71 0.65 35.23 -9.19 20.80 0.41 0.80

2
14.15 9.40 20.18 0.42 0.78 44.48 -69.60 20.80 0.52 0.47
2
26.25 -102.68 20.26 0.50 0.46 25.69 11.83 20.81 0.46 0.71

1 21.28 -82.58 20.27 0.45 0.47 -31.55 -18.29 20.81 0.54 0.79
v
-0.69 -103.44 20.29 0.49 0.56 -2.73 -38.39 20.81 – 0.63
4
1 -34.35 -47.79 20.29 0.47 0.60 -4.62 -77.45 20.83 0.53 0.66
2 -10.82 -60.20 20.33 0.51 0.55 -27.84 -9.68 20.83 0.62 0.61
1
-1.47 -13.44 20.35 0.36 0.81 74.10 -26.36 20.84 0.57 0.75
0
8 -45.77 -4.28 20.36 0.61 0.73 -20.46 -72.29 20.85 0.46 0.62
9 19.17 -103.42 20.37 0.49 0.52 -64.80 -40.48 20.85 0.40 0.65
/
h -8.35 -92.65 20.38 0.52 0.49 35.53 -41.50 20.86 0.51 0.62
p
-21.02 -12.21 20.39 0.49 0.67 -0.27 -119.11 20.88 0.47 0.64
-
o -59.17 -25.51 20.39 0.97 1.30 14.28 -19.57 20.91 0.45 0.77
r
t -18.68 -46.16 20.41 0.51 0.64 8.97 -36.83 20.92 0.52 0.74
s
a -0.90 -33.62 20.44 0.47 0.51 26.99 15.26 20.92 0.58 0.67
v: -23.97 -45.10 20.44 0.56 0.60 -39.97 -36.56 20.92 0.47 0.59
i -4.00 -45.45 20.46 0.58 0.71 4.28 27.58 20.93 0.45 0.70
X
-2.40 -55.19 20.48 0.59 0.69 -67.76 -55.01 20.94 0.45 0.53
r
a -44.39 -27.15 20.49 0.55 0.64 12.64 -105.18 20.95 0.39 0.48
35.53 -37.00 20.50 0.53 0.73 -0.10 12.27 20.97 1.09 0.15
24.77 -19.50 20.50 0.50 0.58 -29.90 -34.75 20.97 0.50 0.51
21.55 3.43 20.51 0.51 0.62 -36.85 -90.51 20.99 0.58 0.74
-39.90 -29.61 20.53 0.49 0.50 -5.51 -70.95 21.02 0.60 0.62
26.65 -13.44 20.53 0.39 0.60 -7.68 6.38 21.03 – –
-14.75 -38.10 20.56 0.50 0.46 -42.48 -50.86 21.03 0.58 0.69
63.59 -56.38 20.56 0.44 0.44 -62.44 -40.58 21.06 0.51 0.50
14.25 -117.76 20.57 0.50 0.57 8.60 -31.55 21.06 0.97 0.37
-8.98 38.34 20.58 0.59 0.72 32.13 -0.02 21.06 0.36 0.54
9.55 -17.35 20.59 0.44 0.50 11.65 -43.31 21.06 0.47 0.50
69.52 -46.20 20.61 0.48 0.52 -1.56 -22.94 21.06 0.57 0.87
0.63 -49.05 20.67 0.53 0.73 30.55 -10.16 21.06 0.36 0.69
1

8
9
9
1

n
a
J

2
2

1
v
4 Table 3. Definition of Radial Zones
1
2
1 Zone r (px) r (arcsec) A (arcmin2) α m
0
0
8
Ring 1 70−150 9.17−19.65 0.242 1.812 23.11
9
/ Ring 2 150−300 19.65−39.30 0.822 1.465 23.62
h
Ring 3 300−450 39.30−58.95 0.856 1.590 24.16
p
- Ring 4 450−1080 58.95−141.5 2.855 1.460 24.28
o
Bkgd – – 4.96 1.975 25.19
r
t
s
a
:
v
i
X
r
a
1

8
9
9
1
Table 4. The M87 GCLF as a Function of Radius
n
a
J
R Ring 1 Ring 2 Ring 3 Ring 4 Bkgd
2
2
19.2 0.0 ± 1.7 2.0 ± 1.7 0.0 ± 1.7 0.0 ± 2.0 0.0 ± 1.0

1 19.6 0.0 ± 1.7 1.0 ± 1.7 1.0 ± 1.7 0.0 ± 2.0 0.0 ± 1.0
v
20.0 2.0 ± 1.7 2.0 ± 1.7 0.0 ± 1.7 2.0 ± 2.0 0.0 ± 1.0
4
1 20.4 1.0 ± 1.7 6.1 ± 3.0 11.1 ± 4.0 9.1 ± 3.8 0.0 ± 1.0
2 20.8 2.9 ± 2.1 11.7 ± 4.2 5.5 ± 3.0 10.4 ± 4.4 3.0 ± 1.7
1
21.2 7.1 ± 3.2 14.1 ± 4.6 8.9 ± 3.7 13.6 ± 4.7 1.0 ± 1.0
0
8 21.6 4.1 ± 2.5 11.3 ± 4.1 11.2 ± 4.1 22.4 ± 5.8 0.0 ± 1.0
9 22.0 5.1 ± 2.8 15.1 ± 4.9 24.0 ± 6.0 27.9 ± 6.7 3.0 ± 1.7
/
h 22.4 8.9 ± 3.8 33.8 ± 7.3 19.2 ± 5.4 31.8 ± 7.1 2.0 ± 1.4
p 22.8 15.0 ± 5.5 29.1 ± 6.9 18.5 ± 5.3 63.9 ± 10.0 2.0 ± 1.4
-
o 23.2 22.2 ± 9.9 35.8 ± 8.4 25.0 ± 6.4 44.1 ± 8.8 6.1 ± 2.5
r
23.6 — 29.0 ± 10.6 21.0 ± 6.4 43.9 ± 9.5 11.3 ± 3.4
t
s
24.0 — — 17.1 ± 7.7 32.8 ± 10.0 18.8 ± 4.4
a
: 24.4 — — — 21.5 ± 15.4 48.9 ± 7.3
v
i
X
Total 68.4±13.5 191.1±19.5 162.5±17.3 323.3±28.3 96.1±10.3
r
a
Rel.Area 0.049 0.166 0.173 0.576 1.000
1

8
9
9
1

n
a
J

2
2

1 Table 5. Cluster Metallicity Versus Radius
v
4
1
2 r′′ N hV −Ii σ(V −I) [Fe/H]V−I σ[Fe/H]
1
0 20.5 14 1.139±0.031 0.122 −0.34±0.18 0.66
8
28.4 17 1.164±0.036 0.146 −0.20±0.19 0.79
9
/ 38.1 18 1.145±0.027 0.155 −0.31±0.20 0.85
h
p 47.3 22 1.139±0.038 0.168 −0.34±0.19 0.91
- 60.0 21 1.148±0.015 0.163 −0.29±0.20 0.90
o
r 78.5 19 1.045±0.022 0.148 −0.86±0.19 0.81
t
s 99.5 22 1.089±0.032 0.181 −0.62±0.21 0.99
a
:
v
i
X
r
a
1