J/MNRAS/358/1215 CT1 photometry of 10 SMC clusters (Piatti+, 2005)
Tracing the formation history of intermediate-age star clusters in the Small Magellanic Cloud. Piatti A.E., Sarajedini A., Geisler D., Seguel J., Clark D. <Mon. Not. R. Astron. Soc., 358, 1215-1230 (2005)> =2005MNRAS.358.1215P
ADC_Keywords: Magellanic Clouds ; Associations, stellar ; Photometry, CMT1T2V Keywords: techniques: photometric - galaxies: individual: SMC - Magellanic Clouds - galaxies: star clusters Abstract: Colour-magnitude diagrams (CMDs) are presented for the first time for 10 star clusters projected on to the Small Magellanic Cloud (SMC). The photometry was carried out in the Washington system C and T1 filters allowing the determination of ages by means of the magnitude difference between the red giant clump and the main-sequence turnoff (MSTO), and metallicities from the red giant branch (RGB) locus. Description: The 10 SMC cluster fields were observed during four nights with the Cerro Tololo Inter-American Observatory (CTIO) 0.9-m telescope in 2002 October and 2003 December, with filters of the Washington photometric system (C and T1, effective wavelength 391 and 633nm) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table13.dat 81 10 Fundamental parameters of SMC clusters table10.dat 54 5500 CCD CT1 data of stars in the field of L 4 table11.dat 54 1499 CCD CT1 data of stars in the field of L 5 table12.dat 54 1478 CCD CT1 data of stars in the field of L 6 table3.dat 54 6134 CCD CT1 data of stars in the field of L 7 table4.dat 54 1928 CCD CT1 data of stars in the field of L 19 table5.dat 54 6134 CCD CT1 data of stars in the field of L 27 table6.dat 54 9381 CCD CT1 data of stars in the field of BS 121 table7.dat 54 19070 CCD CT1 data of stars in the field of HW 47 table8.dat 54 38681 CCD CT1 data of stars in the field of HW 84 table9.dat 54 43815 CCD CT1 data of stars in the field of HW 86
See also: J/AcA/48/175 : OGLE SMC clusters (Pietrzynski+ 1998) Byte-by-byte Description of file: table13.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Cluster Cluster designation 8- 9 I2 h RAh Simbad right ascension (J2000.0) 11- 12 I2 min RAm Simbad right ascension (J2000.0) 14- 17 F4.1 s RAs Simbad right ascension (J2000.0) 19 A1 --- DE- Simbad declination sign (J2000.0) 20- 21 I2 deg DEd Simbad declination (J2000.0) 23- 24 I2 arcmin DEm Simbad declination (J2000.0) 26- 27 I2 arcsec DEs Simbad declination (J2000.0) 29- 32 F4.2 mag E(B-V) B-V colour excess 34- 36 F3.1 mag dT1 T1 magnitude difference, estimated from the average of independent measurements by two authors 38- 40 F3.1 Gyr Age Age of the cluster 42- 46 F5.2 [Sun] <[Fe/H]> Mean metallicity of the cluster 48- 50 F3.1 [Sun] e_<[Fe/H]> rms uncertainty on <[Fe/H]> 52- 55 F4.2 deg R Angular separation of the cluster with respect to the SMC optical centre (1) 57- 69 A13 --- SName Simbad name of the cluster 71- 81 A11 --- Table Name of the table containing the indidual data
Note (1): We assume for the position (J2000) of the optical centre: RA=00:52:45, DE=+72:49:43.
Byte-by-byte Description of file: table?.dat table1[0-2].dat
Bytes Format Units Label Explanations
2- 6 I5 --- Seq Sequential number in the cluster (1) 8- 15 F8.3 pix Xpos X position (2) 17- 24 F8.3 pix Ypos Y position (2) 27- 32 F6.3 mag T1mag T1 magnitude (633±80nm) 34- 38 F5.3 mag e_T1mag rms uncertainty on T1 40- 45 F6.3 mag C-T1 C-T1 colour index 47- 51 F5.3 mag e_C-T1 ?=* rms uncertainty on C-T1 54 I1 --- o_T1mag Number of measurements
Note (1): The stars are identified in Simbad as: Cl* Lindsay 4 PSG NNNN in table3 Cl* Lindsay 5 PSG NNNN in table4 Cl* Lindsay 6 PSG NNNN in table5 Cl* Lindsay 7 PSG NNNN in table6 Cl* Lindsay 19 PSG NNNN in table7 Cl* Lindsay 27 PSG NNNN in table8 [PSG2005] BS 121 NNNN in table9 [PSG2005] HW 47 NNNN in table10 [PSG2005] HW 84 NNNN in table11 [PSG2005] HW 86 NNNN in table12 Note (2): (Xpos, Ypos) coordinates correspond to the reference system of Fig. 1. 1 pix = 0.4arcsec. North is up and east is to the left.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Feb-2006
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|