Statistics
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...267..207t&link_type=abstract
Astrophysical Journal, Part 1, vol. 267, Apr. 1, 1983, p. 207-221.
Statistics
68
Main Sequence Stars, Metallicity, Star Clusters, Star Distribution, Ubv Spectra, Angular Velocity, Binary Stars, Blue Stars, Interstellar Extinction, Mode (Statistics), Stellar Evolution, Stellar Rotation, Visual Photometry
Scientific paper
Observations of the old disk cluster NGC 752 using a program of four-color uvby photometry are presented. Results show that the main-sequence distribution of the cluster is bimodal, separating into a sequence of blue stars and one of red stars. While some of the red stars appear to be binaries, it is suggested that the remainder can best be explained as having significantly higher rotation velocities than the blue stars. A comparison of these results to previous investigations indicates significant systematic differences amounting to 0.010 mag in c1 and 0.017 mag in m1. In addition, the values for the reddening, metallicity, and distance modulus are found to be consistent for these parameters obtained from alternative techniques. It is concluded that E(B-V) = 0.04 + or - 0.01, (Fe/H)752 relative to the Hyades = -0.33 + or - 0.09, (m-M)0 = 8.2 + or - 0.2, and the cluster age is 2.2 + or - 0.3 x 10 to the 9th stars, where the uncertainties refer to the standard deviation for a single star.
No associations
LandOfFree
NGC 752 and main-sequence bimodality does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with NGC 752 and main-sequence bimodality, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NGC 752 and main-sequence bimodality will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1233492