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J/A+A/380/478       BVI photometry in NGC 6101               (Marconi+, 2001)

Mass segregation of different populations inside the cluster NGC 6101. Marconi G., Andreuzzi G., Pulone L., Cassisi S., Testa V., Buonanno R. <Astron. Astrophys. 380, 478 (2001)> =2001A&A...380..478M
ADC_Keywords: Clusters, globular ; Photometry, CCD Keywords: globular clusters: individual (NGC 6101) - stars: fundamental parameters - Hertzsprung-Russell diagram - stars: abundances - stars: horizontal branch Description: We used HST-WFPC2 and the 1.54 Danish ESO-telescope at La Silla (Chile) to obtain photometry for stars located within 200 arcsec from the center of the cluster NGC 6101. HST-WFPC2 data for 1 field centered on the cluster, have been collected during HST-cycle 6. The resulting V, V-I photometry reach a limiting magnitude of V∼25.5. Ground observations have been collected on July 1995. The resulting photometry containing the stars simultaneously detected in the V, B and I filters, is characterized by a limiting magnitude of V∼22.5. Objects: ----------------------------------------- RA (2000) DE Designation(s) ----------------------------------------- 16 25 48.6 -72 12 06 NGC 6101 ----------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file hst.dat 51 12012 HST V, V-I photometry for NGC 6101 ground.dat 66 8413 Ground V, V-I, B-V photometry for NGC 6101
Byte-by-byte Description of file: hst.dat
Bytes Format Units Label Explanations
1- 7 F7.3 pix xpos x coordinate (G1) 9- 15 F7.3 pix ypos y coordinate (G1) 17- 22 F6.3 mag Vmag V magnitude (F555W) 24- 28 F5.3 mag e_Vmag V photometric error 30- 35 F6.3 mag V-I V-I colour index (F555W -F814W) 37- 41 F5.3 mag e_V-I V-I photometric error 43- 51 F9.3 --- ID Identification number (G2)
Byte-by-byte Description of file: ground.dat
Bytes Format Units Label Explanations
1- 8 F8.3 pix xpos x coordinate (G1) 10- 17 F8.3 pix ypos y coordinate (G1) 19- 24 F6.3 mag Vmag V magnitude 26- 30 F5.3 mag e_Vmag V photometric error 32- 37 F6.3 mag V-I V-I colour index 39- 43 F5.3 mag e_V-I V-I photometric error 45- 50 F6.3 mag B-V B-V colour index 52- 56 F5.3 mag e_B-V B-V photometric error 58- 66 F9.3 --- ID Identification number (G2)
Global notes: Note (G1): 1 pix = 0.37". Note (G2): IDs in HST-table have been created also to indicates the camera in which each object has been identified: PC: 10000 ≤ ID < 20000 WF2: 20000 ≤ ID < 30000 WF3: 30000 ≤ ID < 40000 WF4: 40000 ≤ ID < 50000
Acknowledgements: Gloria Andreuzzi
(End) Patricia Bauer [CDS] 12-Dec-2001
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

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