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Table 3.

Variations in Mrk 509 absorption troughs between 2009 and 2012.

Feature Absorption v1a v2a ⟨TCOS12⟩b c d e
trough (km s−1) (km s−1)
Lyα T1 −440 −375 0.504 −0.001 0.0049 −0.1
Lyα T2 −355 −265 0.106 0.212 0.0096 22.1
Lyα T3 −265 −200 0.323 0.114 0.0057 19.8
Lyα T4 −115 −45 0.277 −0.013 0.0064 −2.1
Lyα T5 −45 15 0.082 0.149 0.0126 11.8
Lyα T6 15 75 0.093 0.139 0.0110 12.6
Lyα T7 75 160 0.101 0.175 0.0093 18.8
Lyα T8 160 200 0.113 0.113 0.0128 8.8
Lyα T9 200 260 0.208 0.079 0.0080 9.9
N V λ1238 T1 −440 −375 0.767 0.031 0.0070 4.5
N V λ1238 T2 −355 −265 0.470 0.004 0.0078 0.5
N V λ1238 T3 −265 −200 0.741 0.017 0.0069 2.5
N V λ1238 T4 −115 −45 0.683 −0.022 0.0070 −3.1
N V λ1238 T5 −45 15 0.302 0.131 0.0121 10.9
N V λ1238 T6 15 75 0.707 0.038 0.0073 5.2
N V λ1238 T7 75 160 0.737 0.032 0.0063 5.2
N V λ1238 T8 160 200 0.832 −0.008 0.0082 −0.9
N V λ1238 T9 200 260 0.864 −0.010 0.0072 −1.3
N V λ1242 T1 −440 −375 0.819 0.015 0.0068 2.1
N V λ1242 T2 −355 −265 0.663 0.069 0.0067 10.3
N V λ1242 T3 −265 −200 0.846 0.040 0.0068 5.8
N V λ1242 T4 −115 −45 0.825 0.011 0.0068 1.6
N V λ1242 T5 −45 15 0.422 0.060 0.0108 5.5
N V λ1242 T6 15 75 0.849 0.049 0.0071 6.9
N V λ1242 T7 75 160 0.855 0.043 0.0062 6.9
N V λ1242 T8 160 200 0.956 0.053 0.0084 6.3
N V λ1242 T9 200 260 0.967 0.040 0.0069 5.8
C IV λ1548 T1 −440 −375 0.813 0.059 0.0059 10.0
C IV λ1548 T2 −355 −265 0.365 0.099 0.0079 12.5
C IV λ1548 T3 −265 −200 0.665 0.088 0.0065 13.6
C IV λ1548 T4 −115 −45 0.682 0.030 0.0061 5.0
C IV λ1548 T5 −45 15 0.284 0.058 0.0109 5.4
C IV λ1548 T6 15 75 0.716 0.021 0.0063 3.3
C IV λ1548 T7 75 160 0.667 0.094 0.0057 16.6
C IV λ1548 T8 160 200 0.329 0.106 0.0126 8.5
C IV λ1548 T9 200 260 0.576 0.134 0.0075 17.9
C IV λ1550 T1 −440 −375 0.697 0.056 0.0063 8.9
C IV λ1550 T2 −355 −265 0.483 0.119 0.0067 17.7
C IV λ1550 T3 −265 −200 0.813 0.081 0.0059 13.8
C IV λ1550 T4 −115 −45 0.808 0.020 0.0058 3.5
C IV λ1550 T5 −45 15 0.428 0.094 0.0092 10.3
C IV λ1550 T6 15 75 0.894 0.067 0.0061 10.9
C IV λ1550 T7 75 160 0.928 0.010 0.0052 1.9
C IV λ1550 T8 160 200 1.010 0.025 0.0071 3.6
C IV λ1550 T9 200 260 0.998 0.008 0.0060 1.4

Notes.

(a)

Velocities are relative to a systemic redshift of z = 0.034397 (Fisher et al. 1995).

(b)

Mean transmission in the given absorption trough in the COS 2012 spectrum.

(c)

Mean fractional difference between COS 2012 and COS 2009 troughs normalized by the mean transmission for COS 2012.

(d)

Mean fractional error in the difference between the COS 2012 and COS 2009 troughs normalized by the mean transmission for COS 2012.

(e)

Mean fractional difference between the COS 2012 and COS 2009 troughs normalized by the error.

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