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Table 1.

Main properties of the selected sample.

1718–649 1146+596


Parameter Symbol Unit Value Ref. Value Ref.
Radio continuum center α (J2000) RA 17h 23m 41s (1) 11h 48m 36s (6)
Radio continuum center δ (J2000) Dec −65 °  00′ 37″ (1) −59 °  24′ 56″ (6)
Redshift z 0.014 (2) 0.011 (7)
Kinematic age τj yr 100 (3) 60 (8)
Linear radio size LS pc 2 (3) 5 (8)
Hotspot separation velocity vh c 0.07 (3) 0.20 (8)
Radio turnover frequency νp GHz 3.25 (4) 5 (8)
Galactic column density NH, Gal cm−2/1020 5.90 (5) 1.86 (5)

Notes. With the assumed cosmology, 1″ corresponds to 305 pc at z = 0.014 and to 228 pc at z = 0.011 (Wright 2006).

References. (1) Cutri et al. (2003), (2) Meyer et al. (2004), (3) Giroletti & Polatidis (2009), (4) Tingay et al. (2015), (5) HI4PI Collaboration (2016), (6) de Vaucouleurs et al. (1991), (7) van den Bosch et al. (2015), (8) Principe et al. (2020).

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