The presentation of the data is the same as that adopted in the main
catalogue and the supplements (Catalano & Renson 1984,
1988; Catalano
et al. 1991, 1993).
The stars which appear here for the first time are marked with a +
before their HD number: we present here 21 such stars.
As in the previous issues of the catalogue we have marked by asterisks
the presence of notes; a double asterisk indicates a new or modified note.
Notes are here reported for the newly introduced stars marked with an
asterisk and for those marked with a double one. For the stars which were
quoted in the previous issues (one asterisk), we do not report here the
list of the notes: they can be easily found in Catalano & Renson (1984,
1988) and in Catalano et al. (1991, 1993).
In Table 1 some stars are present without references: this means that a
variable star name has been recently attributed or was not known to us
before, or a new or a modified note has been introduced.
Finally we want to point out that the periods listed in the present
supplement, as in the previous issues, are physically linked with
nothing but axial rotation (via the oblique rotator model) or
eclipses, hence we have not included the very short periods, i.e. those
attributed to pulsations or oscillations.
Two stars among the newly introduced ones do not have any HD number
(one of them has a HDE number); they are placed at the end of the
Table, and their right ascensions and declinations are given in the
notes.
Table 1, notes to this Table and related references are available in
LaTEX form at the CDS via anonymous ftp 130.79.128.5 (filename:
DS1178.tex).
We wish to ask our colleagues working on every aspect of Ap stars to
send to F.A. Catalano or P. Renson their results. This would make easier
the task of continuous updating the catalogue.
Acknowledgements
Our thanks are due to the colleagues who have kindly supplied us their results.