Abstract
view Abstract Citations (12) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Observations of Halpha -emission stars in the young cluster NGC 2264. Rydgren, A. E. Abstract UBVRI photometry is given for a sample of 25 late-type H-alpha-emission stars in the young cluster NGC 2264. The stars are in the V magnitude range from 12 to 16. Some but not all appear to be T Tauri stars. The color-color diagrams support the view that the deviations from normal photospheric colors (due to 'spectral veiling' and line emission) decrease with increasing wavelength between the U and I filters. In the (V, V - R) diagram, the H-alpha-emission stars lie in a well-defined pre-main-sequence band. Within this sample, there is a trend toward stronger line emission and spectral veiling with later spectral type. All of the likely legitimate T Tauri stars have inferred spectral types later than about K3. The question of cluster membership for stars in the cluster field with very small proper motions is considered. Publication: The Astronomical Journal Pub Date: January 1979 DOI: 10.1086/112393 Bibcode: 1979AJ.....84...90R Keywords: Emission Spectra; H Alpha Line; Late Stars; Stellar Spectrophotometry; Ubv Spectra; Color-Color Diagram; Line Spectra; Main Sequence Stars; Photoelectric Emission; Star Clusters; Astrophysics; Late-Type Stars:Open Clusters; Open Clusters:T Tauri Stars full text sources ADS | data products SIMBAD (1)
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