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J/A+A/317/54        Fornax cluster 1 and 3 photometry (Jorgensen+ 1997)

Globular clusters 1 and 3 in the Fornax dwarf galaxy Jorgensen U.G., Jimemez R. <Astron. Astrophys. 317, 54 (1997)> =1997A&A...317...54J (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, globular ; Photometry, CCD Keywords: stars: carbon - stars: AGB - galaxies: formation - galaxies: individual: Fornax dSph (A0237-34) - galaxies: star clusters Description: We have performed photometric CCD observations of the giant and horizontal branches of the globular cluster1, and of the giant branch of cluster3, in the Fornax dwarf spheroidal galaxy. The observations were performed in the V and I standard broad-band filters as well as through two narrow-band filters especially designed to distinguish between carbon and M type stars. The AGB is richly populated with carbon-rich stars, and all of them are considerably below the theoretical lower luminosity limit for such stars. If the Fornax clusters are interpreted as resembling an earlier epoch of the Galactic globular clusters, the low luminosities of the carbon stars therefore point to a larger role of the low-mass stars in the chemical enrichment of our Galaxy. The giant branches of the Fornax clusters are much broader than canonical giant branches in Galactic globulars, and the AGB is more well populated. We suggest that the morphology and stellar population of the giant branches indicate that the dwarf galaxies are ≃3Gyr younger than the Galactic halo, which in turn seems to be ≃3Gyr younger than the Galactic globular clusters. For a description of the N2-N3 photometric system, see e.g. GCPD/39 Objects: ---------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------- 02 37.0 -34 11 Cluster 1 in Fornax 02 39.8 -34 16 Cluster 3 in Fornax ---------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1 54 51 Cluster 1 photometry table2 54 30 Cluster 3 photometry tables.tex 79 114 LaTeX version of the tables
Byte-by-byte Description of file: table1 table2
Bytes Format Units Label Explanations
1- 2 I2 --- ID Identification number 4- 8 F5.2 mag Vmag V magnitude 10- 13 F4.2 mag B-V B-V color index 15- 18 F4.2 [solLum] logL Reduced luminosity 20- 23 F4.2 [K] logTeff Effective temperature 25- 29 F5.2 mag Mbol Absolute bolometric magnitude 31- 35 F5.2 mag 81-78 ? Narrow band color {DELTA}m(81-78)=m(8120A)-m(7795A) 37- 38 I2 --- N2 ? Number in Buonanno et al. (1985) catalogue 40- 44 F5.2 mag Vmag2 ? V magnitude in Buonanno et al. (1985) 46- 48 I3 --- N3 ? Number in Demers et al. (1990) catalogue (1) 50- 54 F5.2 mag Vmag3 ? V magnitude in Demers et al. (1990) (1)
Note (1): These data are only in table1
Acknowledgements: Raul Jimenez References: Buonanno R. et al., 1985, A&A 152, 65 =1985A&A...152...65B Demers et al., 1990, PASP 102, 632 =1990PASP..102..632D
(End) Patricia Bauer [CDS] 03-Jun-1996
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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