Times of minima and similar papers

Guidelines on times of minima/maxima and ephemerides papers

A long tradition of the IBVS is to publish timing and ephemeris data of variable stars, mostly binaries. Continued observations of these variations are important as they may reveal changes in the dynamics and structure of the system or star.

Since it is nowadays quite easy to obtain minima and maxima times of most variable star types, individual short lists of only a handful of timings will not be accepted. Manuscripts based on the authors' own observations are preferred compared to mining public photometric databases. Please also note that long lists of individual stars, especially if they are based on data mining instead of new observations, are discouraged. These kinds of data sets can be readily analysed and we suggest to present the results in a standalone paper instead. 

 One group of observers can generally submit one list of times of minima/maxima every year. In case of very long lists two of them could be accepted yearly, provided that the number of times of minima/maxima exceeds 100 in both submissions.

 Ephemerides are only accepted if they are new or provide significant improvements from previous ones.

 Minima times must be published with significant decimal digits only.


Preparing a manuscript

Manuscripts are accepted in LaTeX format, using the IBVS style file, or in plain text. Templates can be found here:

LaTeX template
plain text template

LaTeX papers use the ibvs2.sty and ibvse.sty style files. Authors must submit the LaTeX source files together with the camera-ready complete manuscript (preferably pdf). Please note that doc/docx/odt submissions are only accepted in exceptional cases and their processing by the editorial office will delay the publication process.


Abstract and structure

Originally, IBVS papers did not have abstracts. However, we encourage authors to include a short abstract of 1-2 sentences in the manuscript: you can state, e.g., the number of stars and/or timings, and any peculiar objects you encountered. 

Timing papers do not need to be structured into sections. You can either provide a short introductory text detailing your observing programme, equipment, etc. Alternatively, you can use the tabulated manuscript template and fill out the necessary information there. Usage of the LaTeX longtable environment is supported. 


File requirements

- The complete pdf (or postcript) version of the manuscript, with figures embedded, that can be sent to the referee.

- The LaTex source file and any standalone images and plots, in a compressed format, e.g. in a zip or tar.gz format. 

- The timing data in machine-readable, plain-text format (txt).