Binary Star Research with the HST Fine Guidance Sensors

Details Binary Star Research with the HST Fine Guidance Sensors Binary Star Research with the HST Fine Guidance Sensors

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998dda....30.1101f&link_type=abstract

American Astronomical Society, DDA meeting #30, #11.01; Bulletin of the American Astronomical Society, Vol. 30, p.1146

Computer Science

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Scientific paper

We will briefly review the concept and technique of using the Fine Guidance Sensors (FGS) in the Transfer Function Scan mode for binary star work. We will discuss issues of instrument calibration and stability. We will describe several projects in progress and illustrate some preliminary results. With the use of specific binaries under investigation, we will characterize the capabilities of FGS as to the range of magnitudes, magnitude differences, and angular separations, and we will discuss the precision and accuracy of astrometry and differential photometry of binary components. Finally, we will assess the expected performance of FGS1r, installed during the 1997 servicing mission, for future binary star research. This work is based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.

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