Infrared Spectroscopy of Low Mass Stars in the Cepheus A Star Forming Region

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present the results of a near-infrared spectroscopic survey of the cluster Cepheus A (Cep A). We used FLAMINGOS on the KPNO4m, to obtain JH spectra of low mass stars in the central region of the cluster. The spectra for 26 members were classified by means of their J and H water absorption features. The spectral types ranged from M1 to M6 with subclass errors of 0.5-1. These spectral types were combined with J H K photometry and placed on an H-R diagram. Comparison to Baraffe models yielded a median age of 1.35Myr.

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