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J/AN/326/321  Absolute magnitudes for late-type dwarfs    (Bilir+, 2005)

Absolute magnitudes for late-type dwarf stars for Sloan photometry. Bilir S., Karaali S., Tuncel S. <Astronomische Nachrichten, 326, 321-331 (2005)> =2005AN....326..321B
ADC_Keywords: Stars, late-type ; Photometry, ugriz ; Photometry, UBVRI ; Photometry, Cousins ; Magnitudes, absolute Keywords: techniques: Sloan photometry - stars: distances - stars: luminosity function Abstract: We present a new formula for absolute magnitude determination for late-type dwarf stars as a function of (g-r) and (r-i) for Sloan photometry (as defined by Abazajian et al., 2003AJ....126.2081A). The absolute magnitudes estimated by this approach are brighter than those estimated by colour-magnitude diagrams, and they reduce the luminosity function rather close to the luminosity function of Hipparcos. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 144 307 Sloan and UBV data for standard stars
See also: II/183 : UBVRI Photometric Standards (Landolt 1992) : the SDSS home page Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Star name 14- 15 I2 h RAh Right ascension (J2000.0) 17- 18 I2 min RAm Right ascension (J2000.0) 20- 21 I2 s RAs Right ascension (J2000.0) 23 A1 --- DE- Declination sign (J2000.0) 24- 25 I2 deg DEd Declination (J2000.0) 27- 28 I2 arcmin DEm Declination (J2000.0) 30- 31 I2 arcsec DEs Declination (J2000.0) 33- 38 F6.3 mag gmag g magnitude 40- 44 F5.3 mag e_gmag mean error of g magnitude 46- 50 F5.3 mag u-g u-g colour 52- 56 F5.3 mag e_u-g mean error of u-g colour 58- 63 F6.3 mag g-r g-r colour 65- 69 F5.3 mag e_g-r mean error of g-r colour 71- 76 F6.3 mag r-i r-i colour 78- 82 F5.3 mag e_r-i mean error of r-i colour 84- 89 F6.3 mag Vmag V magnitude 91- 95 F5.3 mag e_Vmag ? mean error of V magnitude 97-102 F6.3 mag U-B U-B colour 104-108 F5.3 mag e_U-B ? mean error of U-B colour 110-115 F6.3 mag B-V B-V colour 117-121 F5.3 mag e_B-V ? mean error of B-V colour 123-128 F6.3 mag Rc-Ic Cousins R-I colour 130-134 F5.3 mag e_Rc-Ic ? mean error of Rc-Ic colour 136 I1 --- r_Name [1/2] References for standard star (1)
Note (1): References for standard star as follows: 1 = Smith et al. (2002AJ....123.2121S) 2 = Cambridge Astronomical Institute,
Acknowledgements: Selcuk Bilir, selcukbilir71(at)
(End) Patricia Vannier [CDS] 15-Jul-2005
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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