136 citations · 1.1k across the 42 of their papers we have counts for
4 papers · 2 filters
Local stellar kinematics from RAVE data: II. Radial Metallicity Gradient
B. Coskunoglu, S. Ak, S. Bilir +5
We investigate radial metallicity gradients for a sample of dwarf stars from the RAdial Velocity Experiment (RAVE) Data Release 3 (DR3). We select a total of approximately 17000 F-…
Identification of field dwarfs and giants in RAVE
S. Bilir, S. Karaali, S. Ak +3
The second RAdial Velocity Experiment (RAVE) Data Release (DR2) derives log g values but we present a simpler and cleaner method of identifying dwarfs and giants using only magnitu…
Transformations between WISE, 2MASS, SDSS and BVRI photometric systems: I. Transformation equations for dwarfs
S. Bilir, S. Karaali, S. Ak +5
We present colour transformations for the conversion of the W1 and W2 magnitudes of WISE photometric system to the Johnson-Cousins' BVRI, SDSS (gri), and 2MASS (JHK_s) photometric…
An Improved Metallicity Calibration with UBV Photometry
S. Karaali, S. Bilir, S. Ak +2
We used the data of 701 stars covering the colour index interval 0.32<B-V<=1.16, with metallicities -1.76<=[Fe/H]<=+0.40 dex, which were taken from PASTEL catalogue and estimated m…