Table 3.
Statistical analysis of sub-sample from spiral and elliptical galaxies as function of proximity and luminosity with significant alignment.
| Proximity selection | Luminosity selection | Ngal | ⟨σ⟩ | σ⟨cosθ⟩ | pKS |
|---|---|---|---|---|---|
| Spirals | |||||
| 0.36 ≤ d ≤ 2 Mpc | −23.46 ≤ M ≤ −16 | 23 163 | 1.567 (Fig. 8.1) | 3.859 (Fig. 8.1A) | 4.2 × 10−5 |
| Ellipticals | |||||
| 0 ≤ d ≤ 2 Mpc | −24 ≤ M ≤ −20.67 | 15 343 | 3.772 (Fig. 8.1) | 13.792 (Fig. 8.2A) | 6.6 × 10−28 |
Notes. Columns indicate: (1) Proximity selection range (in Mpc) from the filament spine; (2) Luminosity selection range (in absolute magnitude); (3) Number of galaxies (Ngal); (4) Alignment signal Significance (⟨σ⟩), indicating the overall alignment strength; (5) Significance from Mean of Alignment signal (σ⟨cosθ⟩), quantifying the deviation of the observed alignment from random expectations in standard deviation units; and (6) Kolmogorov–Smirnov test p value (pKS), assessing the likelihood of the alignment signal arising by chance.
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