2. Description of the catalogue

The catalogue consists in three files:

• (1) the list of observations (Table 1),
• (2) the bibliography (Table 2),
• (3) the coding of the spectral lines (Table 3).

The list of observations consists of records containing:

• (i) the identification of the galaxy,
• (ii) the code of the reference,
• (ii) a coded description of the observation.

The identifiers of the galaxies follow the scheme used in PS96, they are also valid Simbad identifiers. In addition, the coordinates are given. The code adopted for the reference is the BIBCODE defined by the CDS and also adopted by NED or ADS.

The description of an observation closely follows that defined in Corradi & Capaccioli (1991). The first four characters of this code indicate:

• (i) the domain of observation (O: optical, R: radio),
• (ii) the type of spectral feature (E: emission; A: absorption),
• (iii) the range of data (1: 1D, e.g. rotation curve; 2: 2D, e.g. velocity field),
• (iv) the type of data (V: velocity; D: dispersion; P: position-velocity diagram).

Then, when available in the original source, the observed position angles are indicated. They are coded in two fields, as follows:

• (i) observed axis (MJ: major axis; MI: minor axis; BA: along the bar; PA: pair axis, for binary or double-nucleed galaxies),
• (ii) position angle in degrees, counted as usual from North though East.

It is followed by the list of spectral lines (or features) used, coded as described in Table 3.