SPECTRAL INDICES MEASURED BY PDS ON THE 4 DEGREE OBJECTIVE PRISM PLATE

4도 대물 프리즘 건판에서 PDS에 의한 스펙트럼 지수 측정

In order to check whether the 4-degree objective prism spectra can be used for deep spectroscopic studies of galactic structure, we measured the Rose(1984)'s seven indices between 3500 A and 4400 A for 19 Hyades stars on the Kiso Schmidt prism plate, K3496. By comparing the $4^{\circ}$-indices with those of Rose(1984), we have found that $H{\delta}/FeI$, $H{\gamma}/4325$, and P(3912)/P(CN) measured on the 4-degree prism spectra, are still useful for the derivation physical parameters.