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AN OPTICAL SURVEY OF THE PARTIALLY EMBEDDED YOUNG CLUSTER IN NGC 7129

  • Authors: S. E. Dahm, and L. A. Hillenbrand

2015 The Astronomical Journal 149 200.

  • Provider: AAS Journals

Caption: Figure 9.

Sections of the HIRES spectra of LkHα 234 obtained in 1999 December and 2004 June centered near Hα showing substantial differences in structure between the two epochs. The 1999 spectrum reveals a deep absorption feature in the P Cygni-like profile that is not evident in the later spectrum. A second narrow absorption core is evident near line center, just blueward of the sharp emission peak. The emission peak and the stepped redward slopes are remarkably similar in both observations.

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