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Table 2

Overview of the parameters of galaxies compared to NGC 4194.

Galaxy Merger/ Presence of Ring key properties Shell key properties Reference
interaction a bar a ring a shell radius [pc] mass [M] radius [pc] vexpa [km s-1] mass [M]

NGC 4194 + + + + 320 4.4 × 108 180 55 2.3 × 108 1), 2), 3)
NGC 1614 + (+)b + 500 8.3 × 108 4)
NGC 5218 +c + + + 470 7 × 108 150 30 7 × 107 5), 6)
NGC 3718 +c + 7), 8)
NGC 4441 + (+)b + 875 4.1 × 108 d d d 9), 10)
M 82 +e + + + 200 3 × 107 65e 45e 8 × 106e 11), 12)
NGC 253 + + 130 50 ~106 13)

Notes.

(a)

Expansion velocity.

(b)

Its presence is still under discussion.

(c)

Part of an interacting galaxy pair: NGC 5218  NGC 5216, NGC 3718  NGC 3729, M 82  M 81.

(d)

No values given in the literature for the optical shells.

(e)

Values are for the molecular superbubble.

Reference. 1) This work; 2) Beck et al. (2014); 3) Jütte et al. (in prep.); 4) König et al. (2013); 5) Olsson et al. (2007); 6) Gallagher & Parker (2010); 7) Sparke et al. (2009); 8) Krips et al. (2005); 9) Manthey et al. (2008); 10) Jütte et al. (2010); 11) Weiß et al. (1999); 12) Nakai et al. (1987); 13) Sakamoto et al. (2006).

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