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Positive and Negative Superhumps

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pukemaru's picture
Positive and Negative Superhumps

Study of Negative and Positive Superhumps in ER Ursae Majoris

This paper has just been released.

Please can someone direct me to a place that describes positive and negative superhumps in language that can be understood by a layman (if that is possible).


Stephen [HSP]

FRF's picture
positive and negative superhumps

Positive superhump is the "classic" superhump: it's period is longer than the orbital period of the CV.
Negative superhump: it's period is shorter than the the orbital period of the CV.

Regarding the physical origin of these superhumps there are various theories. Some of them can be found here:

Clear skies,


pukemaru's picture
positive and negative superhumps

Thanks, Robert. Much appreciated


marlin's picture
Negative superhumps

"Cataclysmic Variable Stars" by Coel Hellier is the standard text on the subject.  Look at Chapter 6 for a short synopsis of superhumps. 


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