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Compilation of rotation of the galaxies from gas |
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Rotation of the galaxy from gas.
In a few cases the measurment is made from stellar content. This is the
case for elliptical galaxies.
Twice the rotation velocity of the gas
(logarithm of
km/s) with uncertainty and
quality flag in parentheses
This quantity is the logarithm of a radio line width. It corresponds
roughly to log of twice the velocity rotation.
Telescope
The definitions are given in the "telescopes_codes" table:
Resolution in km/s
Level of the measurement (when it is line width)
code
|
definition
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0
|
undefined level (or rotation
curve)
|
1
|
20% of the maximum
|
2
|
25% of the maximum
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3
|
35% of the maximum
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4
|
40% of the maximum
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5
|
50% of the maximum
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6
|
20% of the mean flux
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7
|
25% of the mean flux
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8
|
50% of the mean flux
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9
|
mean of code 1 and 8
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Line Code
line code
|
definition
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1
|
measurement from rotation curve
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2
|
measurement from radio line width
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