Search for HH Objects and Emission Stars in Star Formation Regions. III. PMS Stars in NGC 7129

Details Search for HH Objects and Emission Stars in Star Formation Regions. III. PMS Stars in NGC 7129 Search for HH Objects and Emission Stars in Star Formation Regions. III. PMS Stars in NGC 7129

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap.....47..519m&link_type=abstract

Astrophysics (English translation of Astrofizika), v. 47, Issue 4, p. 519-529 (2004).

Astronomy and Astrophysics

Astrophysics

7

Stars, Spectroscopy, Emission Line, Stars - Spectroscopy - Emission Line

Scientific paper

Slitless spectroscopy is used to discover 22 emission stars in the central and northwest regions of the cluster located in the NGC 7129 nebula. 16 of them are found for the first time. This sample is essentially complete up to V 20.0. The emission stars are distributed nonuniformly over the field of the cluster and are concentrated toward its center. Photometry in the V, R, and I bands is conducted on more than a hundred stars in the cluster. This yields an average absorption coefficient A V=1.7±0.27 for this region. Based on their positions in color diagrams for the optical and near IR ranges, most of the emission stars can be regarded as T Tau objects.

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