Table 1.
Properties of the HCG 86 group.
| ID | RA | Dec | v | N | Kb | μK | θG | Ri, j | b/a | σv | H0tcr | MVT/LK | Mvir | Rvir |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) | (15) |
| [J2000] | [J2000] | [km s−1] | [mag arcsec−2] | [arcmin] | [kpc h−1] | [km s−1] | [h M⊙/L⊙] | [M⊙] | [kpc] | |||||
| HCG 86 | 19:51:59 | −30:49:31 | 5891 | 4 | 9.47 | 20.22 | 3.90 | 46.60 | 0.80 | 368 | 0.011 | 50 | 8.51 × 1012 | 410 |
Notes. Column 1: Group ID. Columns 2 and 3: right ascension and declination of the HCG 86 centre. Column 4: median velocity of the group. Column 5: number of galaxy members in the HCG 86 within 3 mag of the brightest member. Columns 6 and 7: Galactic extinction-corrected K-band apparent magnitude of the brightest galaxy and the Galactic extinction-corrected K-band group surface brightness. Column 8: angular diameter of the smallest circumscribed circle around group members. Column 9: median projected separation among galaxies. Column 10: apparent group elongation. Column 11: radial velocity dispersion of the galaxies in the HCG 86 computed using individual galaxy velocities. Column 12: dimensionless crossing time. Column 13: mass-to-light ratio in the K band. Columns 14 and 15: virial mass and virial radius of the group (Coziol et al. 2004).
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