Table 2
Mean (and median) kinematic properties for the different (U)LIRG samples.
| Sample | ⟨ log LIR ⟩ | SFR | v shear |
|
σ mean | /σmean |
|
|
K class* |
| (L⊙) | (M⊙ yr-1) | (km s-1) | (km s-1) | (km s-1) | (kpc) | (1010M⊙) | (RD; PD; CK)/T | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|
|
|||||||||
| ALL | 11.4 ± 0.4 | 88 ± 15 (45) | 130 ± 7 (128) | 171 ± 9 (177) | 63 ± 4 (58) | 3.2 ± 0.3 (2.6) | 2.5 ± 0.2 (2.4) | 4.9 ± 0.6 (3.5) | (14; 23; 12)/49 |
|
|
|||||||||
| LIRG | 11.3 ± 0.3 | 44 ± 6 (34) | 130 ± 8 (128) | 170 ± 9 (167) | 59 ± 3 (54) | 3.4 ± 0.5 (3.3) | 2.5 ± 0.2 (2.4) | 4.5 ± 0.5 (3.5) | (14; 22; 6)/42 |
| ULIRG | 12.2 ± 0.1 | 278 ± 20 (272) | 130 ± 26 (150) | 178 ± 24 (190) | 95 ± 12 (90) | 2.0 ± 0.4 (1.9) | 2.8 ± 0.6 (2.4) | 7.1 ± 2.6 (4.8) | (0; 1; 6)/7 |
|
|
|||||||||
| (U)LIRG class 0 | 11.3 ± 0.3 | 48 ± 18 (32) | 150 ± 14 (171) | 195 ± 17 (182) | 44 ± 4 (46) | 4.7 ± 0.5 (4.3) | 2.7 ± 0.3 (3.0) | 5.1 ± 1.0 (4.9) | (6; 6; 1)/13 |
| (U)LIRG class 1 | 11.4 ± 0.5 | 91 ± 25 (41) | 135 ± 7 (141) | 174 ± 8 (190) | 67 ± 3 (63) | 3.0 ± 0.3 (2.5) | 2.6 ± 0.2 (2.4) | 4.8 ± 0.5 (3.5) | (8; 12; 5)/25 |
| (U)LIRG class 2 | 11.7 ± 0.3 | 129 ± 32 (86) | 98 ± 18 (89) | 134 ± 21 (157) | 80 ± 11 (67) | 1.8 ± 0.3 (1.5) | 2.6 ± 0.5 (2.0) | 4.7 ± 1.9 (1.7) | (0; 5; 6)/11 |
|
|
|||||||||
| (U)LIRG RD | 11.4 ± 0.3 | 65 ± 25 (35) | 159 ± 12 (180) | 207 ± 16 (207) | 50 ± 5 (46) | 4.7 ± 0.5 (5.4) | 2.7 ± 0.4 (2.5) | 5.8 ± 1.0 (5.1) | (14; 0; 0)/49 |
| (U)LIRG PD | 11.3 ± 0.4 | 56 ± 15 (36) | 123 ± 10 (119) | 160 ± 13 (163) | 58 ± 4 (53) | 3.1 ± 0.3 (3.1) | 2.4 ± 0.2 (2.3) | 4.1 ± 0.6 (3.5) | (0; 23; 0)/49 |
| (U)LIRG CK | 11.7 ± 0.5 | 161± 36 (202) | 112 ± 15 (127) | 155 ± 17 (157) | 91 ± 8 (90) | 1.7 ± 0.2 (1.7) | 2.7 ± 0.5 (2.3) | 5.9 ± 1.8 (3.4) | (0; 0; 12)/49 |
Notes. Column (1): sample: class 0 identifies isolated disks, class 1 denotes pre-coalescence interacting systems, and class 2 stands for mergers (see Sect. 2.1). RD stands for rotation dominated, PD perturbed disks and CK complex kinematic (see Sect. 4.1). Column (2): infrared luminosity. Column (3): star formation rate derived from the infrared luminosity listed in Col. 2 applying the Kennicutt (1998) relation. Column (4): observed velocity shear as defined in the text. Column (5): intrinsic velocity shear (i.e., inclination corrected). Column (6): mean velocity dispersion. Column (7): dynamical ratio between the intrinsic velocity shear and the mean velocity dispersion. Column (8): infrared effective radius, derived as explained in Appendix B. Column (9): dynamical mass derived as explained in the text. Column (10): number of galaxies classified as RD, PD, CK with respect to the total number of galaxies in the sub-sample.
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