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Analyzing Stellar and Interstellar Contributions to Polarization: Modeling Approaches for Hot Stars
R Ignace, A G Fullard, G V Panopoulou +3
Linear polarimetry of unresolved stars is a powerful method for discerning or constraining the geometry of a source and its environment, since spherical sources produce no net pola…
Zero-polarization candidate regions for calibration of wide-field optical polarimeters
N. Mandarakas, G. V. Panopoulou, V. Pelgrims +14
Context. Calibration of optical polarimeters relies on the use of stars with negligible polarization (unpolarized standard stars) for determining the instrumental polarization zero…
IRAS 00450+7401 and the mid-infrared fade/burst cycle of R Coronae Borealis-type stars
William A. Burris, Carl Melis, Allen W. Shafter +3
We present optical and infrared imaging and spectroscopy of the R Coronae Borealis-type (R Cor Bor) star IRAS 00450+7401. Optical spectra further confirm its classification as a co…
Optical polarization map of the Polaris Flare with RoboPol
G. V. Panopoulou, K. Tassis, D. Blinov +26
The stages before the formation of stars in molecular clouds are poorly understood. Insights can be gained by studying the properties of quiescent clouds, such as their magnetic fi…
Filaments in the Taurus Molecular Cloud
G. V. Panopoulou, K. Tassis, P. F. Goldsmith +1
We have carried out a search for filamentary structures in the Taurus molecular cloud using line emission data from the FCRAO survey of . We have…