Variable stars in the globular cluster Messier 19

Details Variable stars in the globular cluster Messier 19 Variable stars in the globular cluster Messier 19

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978aj.....83..167c&link_type=abstract

Astronomical Journal, vol. 83, Feb. 1978, p. 167-171. Research supported by the National Research Council of Canada.

Astronomy and Astrophysics

Astronomy

16

Astronomical Photometry, Cepheid Variables, Globular Clusters, Star Distribution, Light Curve, Stellar Luminosity, Stellar Magnitude, Tables (Data)

Scientific paper

Periods have been determined for seven of the eight variables in and around the globular cluster M19. Four of these are Population II Cepheids with periods from 2.4 to 16.9 days and three are RR Lyrae variables. All of the Cepheids and two of the RR Lyrae stars may be members. The only galactic globular clusters known to have more Cepheids within their boundaries are Omega Centauri and Messier 14.

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