Zwicky Galaxy Cluster 1400+0949
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Transcript of Zwicky Galaxy Cluster 1400+0949
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Zwicky Galaxy Cluster 1400+0949
Aileen O’Donoghue & Jeff Miller
Department of PhysicsSt. Lawrence University, Canton, NY
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14h02m48s +09°19’48’’ (J2000)
Original POSS Red Plate
1’
NGC 5423
Zwicky, Herzog, Wild, Karpowicz & Kowal,
1961-1968. Catalog of Galaxies and Clusters of Galaxies
, Vols. 1-6. Pasadena: California Institute of
Technology
NGC 5424
NGC 5431
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POSS2 Blue Plate
1
NGC 5416
Numbers from Chincarini, Giovanelli and Haynes (1979), AJ 84, 1500
Palomar blue plates showing
galaxies detected at
Arecibo.6
47
9
2
8
5
3
10
14
15
13
16
11
12
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DR7 Frames
NGC 5416
Numbers from Chincarini, Giovanelli and Haynes (1979), AJ 84, 1500
DR7 frames showing galaxies
detected at Arecibo. 6
47
9
2
8
5
3
10
14
15
13
16
11
12
1
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POSS Blue Plate Arecibo Observations 1978
1’
NGC 5416
Chincarini, Giovanelli and Haynes (1979), AJ 84, 1500
Palomar blue plate
showing galaxies
detected at Arecibo.
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14h02m48s +09°19’48’’ (J2000)SDSS Image
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SDSS Image
7: NGC 5416
4
11
12
Numbers from Chincarini, Giovanelli & Haynes, 1979
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Velocity Histogram
25
00
95
00
12
50
01
45
00
19
50
0
26
50
0
34
50
0
50
00
0 Velocity bins for
other plots
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Velocity & Radial Distance
Abell 1809
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Velocity & Radial Distance
Abell 1809
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Sky Position with Velocity
Abell 1809Abell 1890
USCG U607
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Taking z = r, x = rsin( - 14.075h), y = rcos( - 14.075h)
Wedge Plot
Abell 1809
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Wedge Plot Taking z = r, x = rsin( - 14.075h), y = rcos( - 14.075h)
Abell 1809
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Wedge Plot Taking z = r, x = rsin( - 14.075h), y = rcos( - 14.075h)
Abell 1890
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Wedge Plot Taking z = r, x = rsin( - 14.075h), y = rcos( - 14.075h)
ZW 1400+0949
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Wedge Plot Taking z = r, x = rsin( - 14.075h), y = rcos( - 14.075h)
ZW 1400+0949
USCG U607
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Sky Position with Velocity
Velocities in histogram’s Zw1400 “hump” between 2500 and 9500 km/s
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Sky Position with Velocity
Velocities in histogram’s Zw1400 “hump” between 2500 and 9500 km/s
Stipe of green galaxies: 4500 km/s < cz <
5500 km/s
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Abell 180913 53 03.7 +05 08 17.7
NGC 5338 (foreground)
Abell, Corwin & Olowin 1989 p. 37
galactic coords POSS coords
B-M Type Members
Ric
hnes
sD
ista
nc
e
mag
of
10
th
bri
ghte
st
Classes
cz = 23721 km/s
Ebeling et al, 1998 p. 24 (ROSAT cluster Sample)
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Abell 1890 14 17 37.7 +08 10 46.6
NGC 5338 (foreground)
NGC 5535
NGC 5539
Abell, Corwin & Olowin 1989 p. 37
galactic coords POSS coords
B-M Type Members
Ric
hnes
sD
ista
nc
e
mag
of
10
th
bri
ghte
st
Classes
cz = 17208 km/s
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USGC U60714 16 27.4 +10 42 35
AGC 713973
AGC 241444, N5532, Radio Galaxy
cz = 7588 km/s
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USGC U60714 16 27.4 +10 42 35
AGC 713973
AGC 241444, N5532, Radio Galaxy
cz = 7588 km/s
Martel et al, 2000