[vsnet-campaign-dn 2509] V359 Cen: superhump period change update

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

V359 Cen: superhump period change update

Dear Colleagues,

    We have received new data from Peter Nelson.  The superhump profile
became "round" on June 3, clearly indicating the evolution of the
superhumps.  The period analysis indicates that the period shortening has
stopped.  The observations between May 31 and June 3 are now well expressed
by a single period of 0.08112 d without a period change.  This finding
strongly suggests that there was a rapid evolution of superhumps around
May 29.  This interpretation is strengthened by the likely persence of
"super-QPOs" in the May 29 observation (please note super-QPOs in EF Peg
was only observed on the first day of the appearance of superhumps).

    Further observations are very strongly encouraged.

Regards,
Taichi Kato
VSNET Collaboration team

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp