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Table 1.

Main parameters of the molecular outflow detected in PDS 456.

Outflow component R mol mol
[kpc] [108M] [M yr−1] [1035 cm g s−1]
Extended 1.8 − 5 0.78[0.72 − 0.84] 50[45 − 55] 2.1[1.9 − 2.3]
Central ≲1.2

Total 2.5[1.6 − 2.8] 290[180 − 760] 12.0[7.8 − 32]

Notes. The outflowing gas mass, the mass outflow rate, and momentum flux of the outflow (computed using αCO = 0.8 M (K km s−1 pc2)−1) are indicated for the different outflow components identified in the data. Brackets indicate the range of variation of each parameter considering 1σ statistical errors and systematics associated with the spectral decomposition and uncertainty in the outflow physical size. (a)The lower limit on is computed by adding the residuals of the subtraction of the best-fit pixel-by-pixel spectral decomposition with a model including only disk rotation and H13CN emission from the total CO spectrum. (b)The upper limits on mol and mol are derived assuming that the unresolved fraction (∼40%) of the central outflow component has a minimum size of 160 pc. This value corresponds to approximately a quarter of the mean beam axis and to the spatial offset measured between the peaks of central outflow and total CO(3−2) emission (Sect. 3.2).

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