The OB associations LH 101 and LH 104 in the HII region N158 of the LMC

  title={The OB associations LH 101 and LH 104 in the HII region N158 of the LMC},
  author={G{\'e}rard Testor and V. S. Niemela},
  journal={Astronomy \& Astrophysics Supplement Series},
We present photometric and spectroscopic ob- servations of stars in the Large Magellanic Cloud OB as- sociations LH 101 and LH 104, located in the HII region N158, which we have also imaged. From our observations we have constructed upper H R diagrams for these OB associations, which we nd to consist mainly of three pop- ulations, one of 2 6 Myr for the stars inside the northern bubble (LH 104), and two populations in the southern HII region (LH 101), one of 2 Myr and the other one aged 3 6 Myr… 
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