activity
20182026
most citedPolarization position angle standard stars: a reassessment of and its variability for seventeen stars based on a decade of observations

3 citations · 4 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.IM2026

Variable Star Polarimetry with PICSARR-2

Daniel V. Cotton, Jeremy Bailey, Logan Barrett +3

We describe the upgraded Polarimeter using Imaging CMOS Sensor and Rotating Retarder 2 (PICSARR-2), describe its applications, and characterize its performance for stellar polarime…

astro-ph.EP2026

One Hundred Years of Venus Polarimetry: PICSARR Observations of the Phase Curves

Jeremy Bailey, Daniel V. Cotton, Kimberly Bott +1

We report new high-precision observations of the polarization of light scattered from the atmosphere of Venus, made 100 years after the pioneering studies by Bernard Lyot. The new…

astro-ph.SR2024★ 3 cited

Polarization position angle standard stars: a reassessment of and its variability for seventeen stars based on a decade of observations

Daniel V. Cotton, Jeremy Bailey, Lucyna Kedziora-Chudczer +14

Observations of polarization position angle () standards made from 2014 to 2023 with the High Precision Polarimetric Instrument (HIPPI) and other HIPPI-class polarimeters in bot…

astro-ph.SR2024

Epsilon Sagittarii: An Extreme Rapid Rotator with a Decretion Disk

Jeremy Bailey, Fiona Lewis, Ian D. Howarth +3

We report high-precision multi-wavelength linear-polarization observations of the bright B9 (or A0) star Sagittarii. The polarization shows the distinctive wavelength dependenc…

astro-ph.SR2024★ 1 cited

Deneb is a Large Amplitude Polarimetric Variable

Daniel V. Cotton, Jeremy Bailey, Jean Perkins +2

We write to report the discovery that Deneb is a large amplitude polarization variable. Over a ~400 d time span from August 2022 Deneb's polarization was typically around 3900 part…

astro-ph.GA2018

Mapping the Interstellar Magnetic Field Around the Heliosphere with Polarized Starlight

P. C. Frisch, A. B. Berdyugin, V. Piirola +20

Starlight that becomes linearly polarized by magnetically aligned dust grains provides a viable diagnostic of the interstellar magnetic field (ISMF). A survey is underway to map th…