부산대학교 도서관

HD 35929 is a pre-main-sequence Herbig Ae star candidate that exhibits emission in the Hαline and a weak IR excess. Although its luminosity type was estimated as ivfrom low-resolution spectroscopy, the insignificant HIPPARCOS parallax ($0.88\pm0.93$mas) contradicted the low luminosity. To resolve this discrepancy, we took 3 high-resolution optical spectra of the star (region 5200–6915 Å, $R \sim60\,000$) and used an archival one (4000–6800 Å, $R \sim48\,000$). Our analysis of the spectral and photometric information shows that HD 35929 is an F2 iiistar with $T_{\rm eff}=6880\pm100$K, $\log g = 3.3\pm0.1$, $\log \, L/L_{\odot}=1.7\pm0.2$, $v\,\sin i =70\pm5$km s-1, $M=2.3\pm0.2~M_{\odot}$, a mild metal deficit $\rm [Fe/H]=-0.2\pm0.1$, and a weak interstellar reddening ($A_{\rm V} \sim0.1$mag) at a distance $D = 345\pm60$pc. These results confirm an earlier suggestion by Marconi et al. ([CITE]) that HD 35929 is located within the instability strip. At the same time, we argue that it is not a young object, but rather a post-main-sequence giant. The fundamental parameters and IR excess of HD 35929 are similar to those of HD 19993, an emission-line late A-type giant recently discovered by us (Miroshnichenko et al. [CITE]). These objects might represent a group of evolved intermediate-mass stars with an enhanced mass loss.