A survey of emission-line stars in the perseus dark cloud

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

The results of an objective prism survey of Hα emission-line stars in a 5° × 5° region around NGC 1333 are presented. We have identified 25 stars as having Hα -line in emission, of which 11 have been discovered in the Lick Hα-survey. The limiting magnitude of the present survey is about 16.7 mag. in blue. These are suspected to be mainly T Tauri stars. Based on the UGR(Kiso) multiexposure plates, we have found that, on the [(G - U), (R - G)]-diagram, the domain of Hα emission line stars is fairly well delineated and separate from other stars. Some interesting features in their space distribution are also discussed briefly.

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