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- W2037222700 abstract "view Abstract Citations (37) References (51) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS UVBY photometry of blue stragglers in NGC 7789. Twarog, B. A. ; Tyson, N. Abstract uvby photometry of 28 blue stragglers in the open cluster NGC 7789 is presented and analyzed. A rediscussion of the fundamental cluster parameters is presented. Comparison of these results with those from the blue stragglers indicates that standard photometric calibrations do apply to the stragglers. It is found that the extended halo of blue stragglers around NGC 7789 is composed predominantly of field stars, and that the radial distribution of the stragglers is similar to that of the red giants, implying that the progenitors of both classes of stars have the same mass, i.e., single stars near the cluster turnoff. When combined with weak photometric evidence for a lower bound to the luminosity distribution of the stragglers in the C-M diagram, it is concluded that the best current model for these enigmatic stars is that of a single star which has mixed internally, as delineated in the work of Saio and Wheeler (1980). Possibilities for future research are outlined. Publication: The Astronomical Journal Pub Date: July 1985 DOI: 10.1086/113833 Bibcode: 1985AJ.....90.1247T Keywords: Astronomical Photometry; Blue Stars; Star Clusters; Stellar Color; Distance; Interstellar Extinction; Open Clusters; Red Giant Stars; Ubv Spectra; Astronomy full text sources ADS | data products SIMBAD (29) GCPD (1)" @default.
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- W2037222700 title "UVBY photometry of blue stragglers in NGC 7789" @default.
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