VRc photometry of dwarf cepheids (1): Observation
In this paper, we present VRc photometric observations of four dwarfcepheids: YZ Boo (P= 0.104 d, delta V = 0.5 mag), AD CMi (P = 0.123 d,delta V = 0.5 mag), XX Cyg (P = 0.135 d, delta V = 0.5 mag), EH Lib (P =0.088 d, delta V = 0.7 mag). The light curves were obtained at WestMountain Observatory, Provo, Utah on 14 nights from 1983 through 1986and contain 589 data points in each of the V and R bands in the Cousinphotometric system. A detailed study of these stars, based on thepresent light curves, will be published separately.
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