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Table 2.

Detected blueshifted [Fe III] line velocities of X7 and X8 in 2015.

[Fe III] line X7 X8



Transition Rest wavelength Blueshifted line Velocity Blueshifted line Velocity
[μm] [μm] [km s−1] [μm] [km s−1]
3G3  −  3H4 2.1451 2.1410 559 2.1441 140
3G5  −  3H6 2.2178 2.2142 488 2.2169 122
3G4  −  3H4 2.2420 2.2379 549 2.2410 133
3G5  −  3H5 2.3479 2.3436 549 2.3469 128

Notes. The analytical uncertainty for determining the wavelength is ±2  ×  10−4μm, the velocity error therefore id ±20 km s−1. The mean blueshifted [Fe III] velocity for X8 is about 130 km s−1. For X7, it is 536 km s−1.

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