J/ApJS/90/83 J/ApJS/90/83 Binaries in NGC 3201 P Cote D L Welch P Fischer G S Da Costa P Tamblyn P Seitzer M J Irwin Astrophys. J. Suppl. Ser. 90 83 1994 1994ApJS...90...83C Clusters, globular Photometry, CCD Radial velocities We present BV CCD and APM photometry, accurate astrometry and 1859 radial velocities for 1318 stars within ~36deg of the Galactic globular cluster NGC 3201. The field and cluster populations separate unambiguously in two distinct samples since the systemic radial velocity of NGC 3201 is 494.2km/s. After removal of the 19 known NGC 3201 photometric variables in our sample, we have a database of 930 radial velocities for 420 member giants (276 of which have multiple velocity measurements) with which to identify spectroscopic binaries on the basis of radial velocity variations. The mean time span of the observations is 1.7yr, with coverage up to ~6yr for our best-studied stars. Monte Carlo simulations of the observed velocity variations have provided _upper_limits_ to the cluster binary fraction (for binaries with 0.1<=P<=5-10yr and mass ratios in the range 0.1-1) of 0.06-0.10 (circular orbits) and 0.15-0.18 (eccentric orbits). These results suggest an incidence of binarism for NGC 3201 consistent with the corresponding incidence among nearby solar-type stars having similar periods and mass ratios (0.04-0.08) and that for a small sample of other globular clusters (0.05-0.12) studied by Hut et al. (1992PASP..104..981H). The detailed analysis of the cluster dynamics, based on the data given here, are presented by Cote et al. (1995ApJ...454..788C).

VarID Star number in this table number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) --- RAh Right Ascension J2000 (hours) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) h RAm Right Ascension J2000 (minutes) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) min RAs Right Ascension J2000 (seconds) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) s DE- Declination J2000 (sign) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) --- DEd Declination J2000 (degrees) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) deg DEm Declination J2000 (minutes) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) arcmin DEs Declination J2000 (seconds) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) arcsec HJD Heliocentric Julian Date of observation number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) d RVel Radial velocity number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) km/s e_RVel Mean error on RVel number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) km/s Period Period of variability it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) d r_RVel Source of velocity the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) --- ID(Saw) Designation in Sawyer-Hog (1973) Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) number= it is taken from Fourcade & Laborde (1966, Atlas y Catalogo de Estrellas Variables en Cumulos Globulares al sur de 29deg, La Plata, Asociacion Argentina de Astronomia, or Sawyer-Hogg (1973, Publ. Dominion Astrophys. Obs. Victoria, =1973PDDO....3....6S) number= the code refers to telescope and instrument, see column 4 of table 1 in the printed paper number= Variable designation in Sawyer-Hogg's 1973 paper (1973PDDO....3....6S) --- Star Star identification number --- RAh Right ascension (J2000) h RAm Right ascension (J2000) min RAs Right ascension (J2000) s DE- Declination sign --- DEd Declination (J2000) deg DEm Declination (J2000) arcmin DEs Declination (J2000) arcsec Dist Distance from cluster center arcmin HJD HJD of radial velocity observation d RV Heliocentric radial velocity km/s e_RV RV uncertainty km/s RVmean Weighted mean heliocentric radial velocity km/s e_RVmean RVmean uncertainty km/s Vmag Apparent V magnitude mag B-V Apparent B-V color mag o_RV Number of radial velocity measurements --- 2_RV Chi-square for radial velocities --- Chi2RV Reduced chi-square for radial velocities --- Prob Probability of obtaining a chi-square at least this large purely as a consequence of measurement error --- Src Source of photometry, 'APM' or 'CCD' --- ID Identification number --- n_ID '*' if identified as member in another run --- RAh Right ascension (2000.0) h RAm Right ascension (2000.0) min RAs Right ascension (2000.0) s DE- Declination sign --- DEd Declination (2000.0) deg DEm Declination (2000.0) arcmin DEs Declination (2000.0) arcsec Dist Distance from cluster center arcmin HJD Heliocentric Julian date of observation d RV Heliocentric Radial Velocity km/s e_RV rms uncertainty on RV km/s Vmag V Magnitude mag B-V B-V Colour mag Phot Source of Photometry (APM or CCD) --- ObsRun Observing Run number=1 LC = Las Campanas; A1/A2 = CTIO + ARGUS --- Lee Brotzman ADS 1994, rev. CDS Staff [CDS] 15-Oct-1996Apr09AAS CD-ROM series, Volume 2, 1994; table2 added at CDS (15-Oct-1996) Addresses: Cote P., Welch D.L. and Fischer P. Department of Physics and Astronomy, McMaster University, Hamilton, ON, Canada L8S 4M1 Da Costa G.S. Anglo-Australian Observatory, P.O. Box 296, Epping, NSW 2121, Australia Tamblyn P. Steward Observatory, University of Arizona, Tucson, AZ, 85721 Seitzer P. Department of Astronomy, University of Michigan, Ann Arbor, MI, 48109 Irwin M.J. Royal Greenwich Observatory, Madingley Road, Cambridge, CB3 0HA, UK J_ApJS_90_83.xml