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J/AJ/131/912      BR photometry of Fornax dSph center         (Olszewski+, 2006)

The nature of the density clump in the Fornax dwarf spheroidal galaxy. Olszewski E.W., Mateo M., Harris J., Walker M.G., Coleman M.G., Da Costa G.S. <Astron. J. 131, 912 (2006)> =2006AJ....131..912O
ADC_Keywords: Galaxies, photometry ; Photometry, CCD Keywords: galaxies: dwarf - galaxies: individual (Fornax dSph) - galaxies: stellar content - Local Group Abstract: We have imaged the recently discovered stellar overdensity located approximately one core radius from the center of the Fornax dwarf spheroidal galaxy using the Magellan Clay 6.5m telescope with the Magellan Instant Camera. Superb seeing conditions allowed us to probe the stellar populations of this overdensity and of a control field within Fornax to a limiting magnitude of R=26. The color-magnitude diagram of the overdensity field is virtually identical to that of the control field, with the exception of the presence of a population arising from a very short (less than 300Myr in duration) burst of star formation 1.4Gyr ago. Description: The photometric observations were carried out on 2003 December 22 and 23 (UT) using the Magellan Instant Camera (MagIC) on the Magellan Clay telescope at Las Campanas Observatory. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 70 6647 Photometry of the Fornax clump field table3.dat 70 6349 Photometry of the Fornax control field
See also: J/PASP/110/533 : BR photometry of Fornax bright stars (Stetson+ 1998) J/A+AS/134/59 : Central Fornax Cluster. I Galaxy photometry (Hilker+ 1999) J/A+AS/134/75 : Central Fornax Cluster. II Galaxy spectroscopy (Hilker+ 1999) Byte-by-byte Description of file: table2.dat table3.dat
Bytes Format Units Label Explanations
1- 5 I5 --- [OMH2006] Star identification number (1) 7 I1 h RAh Hour of Right Ascension (J2000) 9- 10 I2 min RAm Minute of Right Ascension (J2000) 12- 16 F5.2 s RAs Seconds of Right Ascension (J2000) 18 A1 --- DE- Sign of the Declination (J2000) 19- 20 I2 deg DEd Degrees of Declination (J2000) 22- 23 I2 arcmin DEm Arcminute of Declination (J2000) 25- 28 F4.1 arcsec DEs Arcsecond of Declination (J2000) 30- 36 F7.2 pix Xpos The X pixel coordinate 38- 44 F7.2 pix Ypos The Y pixel coordinate 46- 51 F6.3 mag Rcmag The Cousins R band magnitude 53- 57 F5.3 mag e_Rcmag Error in Rcmag 59- 64 F6.3 mag B-Rc The (B-Rc) color index 66- 70 F5.3 mag e_B-Rc Error in B-Rc
Note (1): In Simbad, [OMH2006] 2-NNNN for table2.dat and [OMH2006] 3-NNNNN for table3.dat.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 19-Dec-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

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