J/MNRAS/419/342 SX Phe stars in globular clusters (Cohen+, 2012) ================================================================================ SX Phoenicis period-luminosity relations and the blue straggler connection. Cohen R.E., Sarajedini A. =2012MNRAS.419..342C ================================================================================ ADC_Keywords: Clusters, globular ; Stars, variable ; Photometry Keywords: stars: variables: {delta} Scuti - globular clusters: general - distance scale Abstract: This study is aimed at investigating the period-luminosity relation of SX Phoenicis (SX Phe) pulsators in Galactic globular clusters (GGCs) and Local Group dwarf galaxies. We verify isochrone-fitting distances of 46 GGCs by fitting their main sequences to a carefully chosen set of nearby, unevolved subdwarfs. Description: To compile a current list of SX Phe in GGCs, we began with the catalogue of Rodriguez & Lopez-Gonzalez (2000, Cat. J/A+A/359/597), which was updated by Santolamazza et al. (2001ApJ...554.1124S). We then added to this list all SX Phe in GGCs found in the literature since the publication of those studies. This more than doubled the number of SX Phe in GGCs, from 117 listed by Santolamazza et al. (2001ApJ...554.1124S) to 263 currently known. For the sake of homogeneity, we have excluded the small number of SX Phe in E 3, IC 4499 and Ruprecht 106 from our analysis because isochrone fits to those clusters were not performed by D10. In addition, we have excluded all stars from the original Rodriguez & Lopez-Gonzalez (2000, Cat. J/A+A/359/597) catalogue which were also excluded by Santolamazza et al. (2001ApJ...554.1124S), as well as all SX Phe in NGC 3201 and 4372 due to high differential reddening (Gerashchenko, Kadla & Malakhova, 1999ARep...43...20G; Piersimoni, Bono & Ripepi, 2002AJ....124.1528P). File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table3.dat 49 263 SX Phe in Galactic globular clusters -------------------------------------------------------------------------------- See also: J/AJ/106/2493 : SX Phe (Kim+, 1993) J/A+AS/100/571 : uvby-beta photometry of SX Phe stars (Rodriguez+ 1993) J/AJ/110/1186 : SX Phe stars in NGC 5053 (Nemec+ 1995) J/ApJ/685/947 : SX Phe stars in Fornax. II. (Poretti+, 2008) J/A+A/359/597 : SX Phe stars in globular clusters (Rodriguez,+ 2000) Byte-by-byte Description of file: table3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 7 A7 --- Cluster Cluster name 9- 16 A8 --- Star Star name 18- 23 F6.3 [d] LogP Period 25- 28 F4.2 mag AV ? Absorption in V band 30- 34 F5.2 mag ? Average V magnitude 36- 40 F5.2 mag ? Average B-V colour index 42- 45 F4.2 mag ? Average V-I colour index 47- 49 A3 --- Mode Pulsation mode (1) -------------------------------------------------------------------------------- Note (1): Pulsation mode flag as follows: dr = double radial modes nr = non-radial modes fnr = fundamental and non-radial modes mp = multiperiodic u = unknown -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Patricia Vannier [CDS] 25-Jun-2012