SIMBAD references

1999MNRAS.306..815C - Mon. Not. R. Astron. Soc., 306, 815-827 (1999/July-2)

RR Lyrae variables in M5 as a test of pulsational theory.

CAPUTO F., CASTELLANI V., MARCONI M. and RIPEPI V.

Abstract (from CDS):

We present B and V CCD photometry for variables in the cluster central region, adding new data for 32 variables and giving suitable light curves, mean magnitudes and corrected colours for 17 RR Lyrae variables. Adding the data given in this paper to similar data that have already appeared in the literature, we discuss a sample of 42 variables, as given by 22 RRab and 20 RRc, in the light of recent predictions from pulsational theories. We find that the observational evidence concerning M5 pulsators appears in marginal disagreement with predictions concerning the colour of the first overtone blue edge (FOBE), whereas a clear disagreement appears between the zero-age horizontal branch (ZAHB) luminosities predicted through evolutionary and pulsational theories.

Abstract Copyright: 1999 RAS

Journal keyword(s): stars: horizontal branch - stars: variables: other - globular clusters: general - globular clusters: individual: M5 - distance scale

Nomenclature: Table 1: Cl* NGC 5904 Saw VNNN (Nos V142-V159).

Simbad objects: 56

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