Physical Sciences and Mathematics Commons^™

Observations Of Binary Stars With The Differential Speckle Survey Instrument. Ix. Observations Of Known And Suspected Binaries, And A Partial Survey Of Be Stars, Elliott P. Horch, Gerard T. Van Belle, James W. Davidson Jr., Daryl W. Willmarth, Francis C. Fekel, Matthew W. Muterspaugh, Dana I. Casetti-Dinescu, Frederick W. Hahne, Nicole M. Granucci, Catherine A. Clark, Jennifer G. Winters, Justin D. Rupert, Samuel A. Weiss, Nicole M. Colton, Daniel A. Nusdeo, Todd J. Henry

Information Systems and Engineering Management Research Publications

We report 370 measures of 170 components of binary and multiple-star systems, obtained from speckle imaging observations made with the Differential Speckle Survey Instrument at Lowell Observatory's Discovery Channel Telescope in 2015 through 2017. Of the systems studied, 147 are binary stars, 10 are seen as triple systems, and 1 quadruple system is measured. Seventy-six high-quality nondetections and 15 newly resolved components are presented in our observations. The uncertainty in relative astrometry appears to be similar to our previous work at Lowell, namely, linear measurement uncertainties of approximately 2 mas, and the relative photometry appears to be uncertain at the …