2001A&A...373..895K


Query : 2001A&A...373..895K

2001A&A...373..895K - Astronomy and Astrophysics, volume 373, 895-898 (2001/7-3)

Analysis of RGU photometry in selected Area 141.

KARATAS Y., KARAALI S. and BUSER R.

Abstract (from CDS):

The South Galactic pole field SA141 is investigated by using the full calibration tools of RGU photometry. The observed RGU data are reduced to the standard system, and the separation of dwarfs and evolved stars is carried out by an empirical method. Stars are categorized into different metallicity classes and their absolute magnitutes are determined by the corresponding colour-magnitude diagrams. 9 extra-galactic objects have been eliminated from the present stellar statistical treatment. The local luminosity function agrees with the Gliese (1969) and the partly with the Hipparcos (Jahreiss & Wielen, 1997) luminosity function. At the brighter luminosity intervals, the low value of the present observed luminosity function is most probably due to the larger uncertainty in the absolute magnitude determination implied by stars near the main-sequence turnoff. For giants, we found an upper limit, D*(0) = 6.80, of logarithmic local space density close to the one of Gliese & Jahreiss (1992), i.e.: ☉= 6.92.

Abstract Copyright:

Journal keyword(s): Galaxy: structure - stars: luminosity function

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME SGP reg 00 51 26.275 -27 07 41.70           ~ 537 0
2 SA 141- reg 01 07 -29.3           ~ 26 0

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2022.05.28-23:12:09

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