143 citations · 159 across the 5 of their papers we have counts for
4 papers · 1 filter
A New Procedure for the Photometric Parallax Estimation
S. Karaali, Y. Karatas, S. Bilir +2
We present a new procedure for photometric parallax estimation. The data for 1236 stars provide calibrations between the absolute magnitude offset from the Hyades main-sequence and…
A CCD Study of High Latitude Galactic Structure: Testing the Model Parameters
S. Karaali, S. G. Ak, S. Bilir +2
We interpret published CCD UBVI data to deduce the stellar density distribution and metallicity distribution function in the region from 2-8 kpc from the Galactic Plane, and compar…
New metallicity calibration down to [Fe/H] = -2.75 dex
S. Karaali, S. Bilir, Y. Karatas +1
88 dwarfs, covering the colour index interval 0.37 <(B-V)o <= 1.07 mag, with metallicities -2.70 <= [Fe/H] <= +0.26 dex have been taken from three different sources for new metalli…
Extragalactic Objects in Basle Fields
S. Bilir, Y. Karatas, S. Ak
We discriminated the extragalactic objects (galaxies and quasars) from stars for Basle star fields, Plaut I, SA 54, and SA 82 by comparison of Basle fields and APS POSS I finder ch…