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J/A+A/503/87   BVI phot. of NGC3370 star cluster candidates   (Cantiello+, 2009)

The star cluster population of the spiral galaxy NGC 3370. Cantiello M., Brocato E., Blakeslee J.P. <Astron. Astrophys. 503, 87 (2009)> =2009A&A...503...87C
ADC_Keywords: Galaxies, nearby ; Associations, stellar ; Photometry Keywords: galaxies: individual: NGC 3370 - galaxies: star clusters Abstract: We study the photometric and structural properties of the star cluster system in the late type Sc spiral NGC 3370. BVI observations from the Advanced Camera for Surveys on board of HST are used to analyse in detail the colours, magnitudes and spatial properties of cluster candidates. The final catalogue of sources used for the study is composed by 277 objects. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 75 277 Star cluster candidates
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number of the star cluster candidate 5- 12 F8.4 deg RAdeg Right ascension in decimal degrees, J2000 14- 21 F8.4 deg DEdeg Declinationin decimal degrees, J2000 23- 28 F6.2 arcsec Rgc Galactocentric radius 30- 34 F5.2 pc Reff Effective radius 36- 39 F4.2 pc e_Reff rms uncertainty on Reff 41- 45 F5.2 mag Vmag Johnson V magnitude (1) 47- 50 F4.2 mag e_Vmag rms uncertainty on Vmag 52- 56 F5.2 mag B-V Johnson B-V colour index (1) 58- 61 F4.2 mag e_B-V rms uncertainty on B-V 63- 67 F5.2 mag V-Ic Johnson-Cousins V-Ic colour index (1) 69- 72 F4.2 mag e_V-Ic rms uncertainty on V-Ic 74- 75 I2 --- Cl Visual classification code (2)
Note (1): Data have been dereddened using Schlegel et al. extinction maps (1998ApJ...500..525S) and aperture corrected as described in Sect. (2) of the manuscript. Note (2): The visual classification code is used for further selections of Star Cluster candidates, besides the colour, magnitude, effective radius, and location within the galaxy. The visual class code that we used is a number composed by two digits, the first associated to the goodness of ishape residuals, the second to the level of crowding. For both digits the range adopted is 1-3. See Figure 4 of the manuscript for some examples of sources with different visual classification. A default visual class=100 is adopted for diffuse objects (likely background galaxies) showing very large residuals in the ishape subtracted frame. First digit as follows: 11 = good ishape residual, no crowding 12 = good ishape residual, crowding than three sources within 20 pixels from the SC candidate 21 = satisfactory, no crowding 22 = satisfactory, crowding than three sources within 20 pixels from the SC candidate 31 = large residuals, no crowding 32 = large residuals, crowding than three sources within 20 pixels from the SC candidate
Acknowledgements: Michele Cantiello, cantiello(at)oa-teramo.inaf.it
(End) Patricia Vannier [CDS] 19-Jun-2009
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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