Measurement of T Tauri Binaries Using the Hubble Space Telescope Fine Guidance Sensors

Details Measurement of T Tauri Binaries Using the Hubble Space Telescope Fine Guidance Sensors Measurement of T Tauri Binaries Using the Hubble Space Telescope Fine Guidance Sensors

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...469..890s&link_type=abstract

Astrophysical Journal v.469, p.890

Astronomy and Astrophysics

Astronomy

28

Stars: Pre-Main-Sequence, Stars: Binaries: Visual

Scientific paper

We report measurements of young star multiples in the Taurus star-forming region using the Fine Guidance Sensors (FGS) of the HST. Of the eight confirmed IR-discovered multiples, the FGS detected six in visible light: DF Tau, ZZ Tau, V928 Tau, Elias 12, HV Tau, and GN Tau. The V-band magnitudes of the components range from 12.1 to 16.4 mag, and the observed separations range from 0"°.042 to 0"34. Component separations in DF Tau, ZZ Tau, HV Tau, and Elias 12 are sufficiently small that their binary orbital parameters could be determined in a few years. Our targets are quite red, and the FGS observations confirm the predicted sensitivity of the FGS in transfer function mode to extreme color indices.

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