Triggered high state XMM-Newton observations of AR UMa are scheduled for the date below.
Contemporaneous high-cadence photometry in either BVR or I filters is highly appreciated.
 
Proposal  Obs.   Target Name           Status       Rev.   Start Time
--------  -----  --------------------  -----------  -----  -------------------
 088487  01 01  AR UMa                Scheduled    4288     2023-05-09T20:31:40

Am 06.05.2023 um 02:14 schrieb Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>:

AR UMa short-term variations

  Josch Hambsch reported time-resolved observations.
In addition to the expected orbital modulation (0.7 mag),
QPO-like variations were also recorded, which are often
observed in polars.



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Axel Schwope
Galaxies and Quasars / Head X-ray astronomy

Telefon: +49 331 7499 232
Telefax: +49 331 7499 429
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Leibniz-Institut für Astrophysik Potsdam (AIP)
An der Sternwarte 16, D-14482 Potsdam

Vorstand: Prof. Dr. Matthias Steinmetz, Wolfram Rosenbach
Stiftung bürgerlichen Rechts
Stiftungsverzeichnis Brandenburg: 26 742-00/7026
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