Abstract
view Abstract Citations (89) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectra of the Brighter Variables in Globular Clusters. Joy, Alfred H. Abstract Spectrograms of 35 variables of high luminosity in 14 globular clusters were obtained at Mount Wilson with low dispersion. Membership in the clusters was tested by measures of radial velocity, which were compared with the velocities obtained at the Lick Observatory from the integrated light of the clusters. A tabulation of the stars according to period and physical characteristics indicates that the globular clusters contain, in addition to the RR Lyrae stars, several variables of four definite groups: short period (1-2 days), W Virginis, RV Tauri (with high luminosity), and irregular or semiregular variables (period 60-i 10 days). Cepheids, Mira stars, and semiregular variables (types M4-M6) are rare or absent. In gen- eral, the variables found in the clusters correspond to those of population II Publication: The Astrophysical Journal Pub Date: September 1949 DOI: 10.1086/145190 Bibcode: 1949ApJ...110..105J full text sources ADS |
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
