Due to its similarities to the mysterious SN1987A, Sher25 is an - TopicsExpress



          

Due to its similarities to the mysterious SN1987A, Sher25 is an excellent example of a very interesting breed of stars. This work strongly suggests that the star is pulsating in a regular periodic way, which mimics the RV signal of a small binary companion. Such a companion is believed to be unlikely because the variation in the skewness of the line profiles matches the period of the RV shifts, and also because any binary system with these orbital parameters would be relatively unphysical. This work therefore lays to rest the possibility of a massive short-period companion raised by Hendry et al. (2008).
Posted on: Mon, 12 May 2014 02:40:15 +0000

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