The Star Formation History and Mass Function of the Double Cluster h and χ Persei

@article{Slesnick2002TheSF,
  title={The Star Formation History and Mass Function of the Double Cluster h and $\chi$ Persei},
  author={C. Slesnick and L. Hillenbrand and P. Massey},
  journal={The Astrophysical Journal},
  year={2002},
  volume={576},
  pages={880-893}
}
The h and χ Per "double cluster" is examined using wide-field (0°.98 × 0°.98) CCD UBV imaging supplemented by optical spectra of several hundred of the brightest stars. Restricting our analysis to near the cluster nuclei, we find identical reddenings [E(B-V) = 0.56 ± 0.01], distance moduli (11.85 ± 0.05), and ages (12.8 ± 1.0 Myr) for the two clusters. In addition, we find an initial mass function slope for each of the cluster nuclei that is quite normal for high-mass stars, Γ = -1.3 ± 0.2… Expand
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