A uvby-like photometric system for the WF/PC of the HST

Details A uvby-like photometric system for the WF/PC of the HST A uvby-like photometric system for the WF/PC of the HST

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...238..265k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 238, no. 1-2, Nov. 1990, p. 265-269. Research supported by NFR and Swedish Boa

Astronomy and Astrophysics

Astrophysics

1

Dwarf Stars, F Stars, Hubble Space Telescope, Metallicity, Optical Filters, Stellar Spectrophotometry, Ubv Spectra, Gravitational Fields, Hydrogen, Iron, Stellar Composition

Scientific paper

The possibility of combining four filters of the Hubble Space Telescope Wide Field/Planetary Camera into a uvby-like photometric system is discussed. On the basis of earth-based observations with appropriate filters, such a system consisting of WF/PC filters F 368M, F 413M, F 492M, and F 547M was calibrated for the determination of fundamental parameters of F dwarf stars. A good agreement was found between this empirical calibration and a theoretical one by Bell (1988). Good estimates of effective temperatures and metallicities can be obtained with this system, while gravity determinations require a UV filter at shorter wavelengths.

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