Table 7
Star formation rates in the observed tail regions and corresponding lower limits on local CO-to-H2 conversion factor.
| Source | L FUV | L Hα | SFR FUV | SFR Hα | L CO | α CO |
| (1039 erg s-1) | (1037 erg s-1) | (10-4 M⊙ yr-1) | (10-4 M⊙ yr-1) | (105 K km s-1 pc2) | (M⊙ pc-2 (K km s-1)-1) | |
|
|
||||||
| Disk | 139.3 | – | 62.2 | – | <11 | – |
| K4 | 7.7 | 8.0 | 3.5 | 4.3 | <2.6 | >3.3 |
| K6 | 8.6 | 5.2 | 3.8 | 2.8 | <2.3 | >2.4 |
| K8 | 4.6 | 2.7 | 2.1 | 1.5 | <2.1 | >1.4 |
Notes.FUV and Hα luminosities come from Fumagalli et al. (2011). FUV- and Hα-based SFRs were calculated using the formula of Kennicutt & Evans (2012). For the X-factor estimates, a 2 Gyr H2 depletion time was assumed.
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