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The Simons Observatory: Rotation Performance of Cryogenic Half-wave Plate Polarization Modulators

  • Authors: Kyohei Yamada, Bryce Bixler, Junna Sugiyama, Daichi Sasaki, Yuki Sakurai, Kam Arnold, Samuel Day-Weiss, Nicholas Galitzki, Bradley R. Johnson, Akito Kusaka, Lyman A. Page, Yoshinori Sueno, Satoru Takakura

Kyohei Yamada et al 2026 The Astrophysical Journal Supplement Series 286 .

  • Provider: AAS Journals

Caption: Figure 5.

Normalized histogram of the rms of the rotation frequency per observation in the initial year of observations. Observations are conducted at 60° elevation and and a scan speed of 0﹩\mathop{.}\limits^{{\unicode{x000b0}}}﹩5 s−1 for approximately 1 hr. The maximum of the distribution at 1.3 mHz is due to the scan-induced variation.

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