Our paper has been accepted for publication in MNRAS

publication MNRAS dwarf novae CVs

We are happy to announce that our recent paper entitled

Statistical analysis of properties of dwarf novae outbursts

by Magdalena Otulakowska-Hypka (Sterrewacht Leiden), Arkadiusz Olech (N. Copernicus Astronomical Center), and Joseph Patterson (Columbia University) has been accepted for publication in Monthly Notices of the Royal Astronomical Society.

In this work we present a statistical study of all measurable photometric features of a large sample of dwarf novae during their outbursts and superoutbursts. We used all accessible photometric data for all our objects to make the study as complete and up-to-date as possible. Our aim was to check correlations between these photometric features in order to constrain theoretical models which try to explain the nature of dwarf novae outbursts. We managed to confirm a few of the known correlations, that is the Stolz and Schoembs Relation, the Bailey Relation for long outbursts above the period gap, the relations between the cycle and supercycle lengths, amplitudes of normal and superoutbursts, amplitude and duration of superoutbursts, outburst duration and orbital period, outburst duration and mass ratio for short and normal outbursts, as well as the relation between the rise and decline rates of superoutbursts. However, we question the existence of the Kukarkin-Parenago Relation but we found an analogous relation for superoutbursts. We also failed to find one presumed relation between outburst duration and mass ratio for superoutbursts. This study should help to direct theoretical work dedicated to dwarf novae.

The publication can be already found on the NASA Astrophysics Data System: http://adsabs.harvard.edu/abs/2016arXiv160502937O or downloaded from the arXiv: http://arxiv.org/abs/1605.02937 or MNRAS: http://mnras.oxfordjournals.org/content/early/2016/05/12/mnras.stw1120; the doi number is: 10.1093/mnras/stw1120.

The corresponding catalog is accessible on my old website: http://users.camk.edu.pl/magdaot/DN.html

Please, use it, share it, and enjoy!

The project was supported by Polish National Science Center grant awarded by decision number DEC-2011/03/N/ST9/03289.