Table 1.
Columns in the catalogues.
| Column | Name |
|---|---|
| RA | Right ascension (deg) |
| Dec | Declination (deg) |
| dens | Density estimate |
| unc | Estimated uncertainty (deg) |
| grad_RA | Gradient (RA component) |
| grad_dec | Gradient (dec component) |
| angle | Angle of the filament (deg) |
| z_low | Start of the redshift bin |
| z_high | End of the redshift bin |
| ini_dens | Initial density estimate |
Notes. RA and Dec refer to the equatorial system J2000. Angle refers to the angle of the filament with the parallels of the sphere in these coordinates, in a counter-clockwise direction. Column dens refers to the density estimate of the filament. Column ini_dens refers to the density estimate of the starting points at the beginning of Algorithm 1, before the points move towards the ridges; this can be used to set a threshold, see Appendix C. Units of density estimates are arbitrary.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.