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The 2019 superoutburst of VW Hyi

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IanKemp
The 2019 superoutburst of VW Hyi

Hi Everyone

I studied a number of CVs for a short project as part of my Masters degree.  Attached is a poster with a summary of my observation of the 2019 superoutburst of VW Hyi in September/October.  The poster is just a quick overview, I am looking for questions or comments - if you want I can probably post the whole report or parts of it.

Summary of key findings

1. In addtion to the 'standard' superhumps slightly longer than the rotational frequency, there are shorter period varitions which have also been previously seen in other systems but have no explanation.

2. Compared to historical data the superhump period may be increasing.

Cheers from Western Australia,

- - -Ian- - -

[edited 21/12/19 to correct some spelling mistakes]

pukemaru
pukemaru's picture
The 2019 superoutburst of VW Hyi

Thanks for this, Ian - one of my favourites - along with WX Hyi, Z Cha, AH Eri et al!
Are you able to email me your full report.
srh@xtra.co.nz
Kindest regards
Stephen

IanKemp
Hi Stephen - will do. I also

Hi Stephen - will do. I also observed an outburst of WX Hyi but got clouded out at the critical week. I'd be interested in your comments on the report - I didn't get a lot of feedback from the supervisor but they still gave me an HD :-) By the way I lived in Wellington for 7 years, 2 daughters and a sis-in-law still live there.

hambsch
hambsch's picture
VW Hyi

Hi Ian,

I am pretty sure you know that I have observed VW Hyi intensively during the time 2012 to 2014 and in 2018. I think it would be an added value for your research to compare whether the properties you menton in your poster did change with time.

Regards,

Josch

 

IanKemp
Thank you Josch!

Thank you Josch. This report was part of a short project (12 weeks) for my masters so I had limited time. Now though.... I would like to go back over more historical reports to see if the apparent increase in superhump period is real or just an accident of the limited data I used.  Thanks again I really would appreciate some feedback, my Masters is finished but there is no reason why I cannot continue studying southern CVs :-)

hambsch
hambsch's picture
Feedback

Hi Ian,

I cannot give much feedback as I did not analyse the data I have taken. I am the data provider and other people interested in those data are doing the analysis as they have the background to do so. I am "just" the amateur astronomer having the possibility to get the data. I could send to you the AAVSO files or say one global file per year of observation. I could also point to you the publications those data have been used in (at least the older ones) as I know about the 2018 data no paper has yet been poped up.

Josch

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