Table 2
Properties of the 5 compact stellar systems detected in HCG 90, ordered by R-band magnitude.
| ID | RA | Dec | vrad [km s-1] | R | Hβ [Å] | Mgb [Å] | ⟨ Fe ⟩ [Å] | [Fe/H] |
|
|
||||||||
| HCG90_UCD001 | 22h01m57s99 | −31°57′31′′9 | 2911 ± 34 | 11.8 | 2.14 ± 0.62 | 3.62 ± 0.63 | 1.46 ± 0.51 | −0.5 ± 0.2 |
| HCG90_UCD002 | 22h01m56s59 | −31°59′25′′3 | 2567 ± 41 | 9.2 | 1.80 ± 0.61 | 1.24 ± 0.65 | 2.05 ± 0.50 | −0.9 ± 0.3 |
| HCG90_UCD003 | 22h01m56s42 | −31°57′15′′5 | 2536 ± 35 | 11.5 | 2.34 ± 0.77 | 2.85 ± 0.81 | 1.36 ± 0.63 | −0.6 ± 0.3 |
| HCG90_UCD004 | 22h02m01s41 | −31°55′60′′0 | 2423 ± 73 | 5.5 | ||||
| HCG90_UCD005 | 22h02m00s83 | −31°58′26′′7 | 3237 ± 65 | 5.6 | ||||
Notes. The fifth column gives the confidence level R of the cross-correlation radial velocity measurement, performed with the IRAF task fxcor. The last column gives a metallicity estimate for those sources with high enough S/N, i.e. an error of less than 0.5 dex.
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