136 citations · 1.1k across the 51 of their papers we have counts for
51 papers
Bridging the Ultraviolet and Optical Regions: Transformation Equations between {\it GALEX} and {\it UBV} Photometric Systems
S. Bilir, N. Alan, S. Tuncel Guctekin +6
We derive transformation equations between GALEX and UBV colours by using the reliable data of 556 stars. We present two sets of equations; as a function of (only) luminosity class…
Vertical and radial metallicity gradients in high latitude galactic fields with SDSS
S. Tuncel Guctekin, S. Bilir, S. Karaali +2
We used the ugr magnitudes of 1,437,467 F-G type main-sequence stars with metal abundance -2<[Fe/H]<+0.2 dex and estimated radial and vertical metallicity gradients for high Galact…
Photometric Calibration of the Fe] Element: II. Calibration with SDSS Photometry
E. Yaz Gokce, S. Bilir, S. Karaali +1
We present the calibration of the [Fe] element in terms of ultra-violet excess for 465 dwarf stars with spectral type F0-K2. We used a single calibration, fitted to a third deg…
Metallicity Calibration and Photometric Parallax Estimation: II. SDSS photometry
S. Tuncel Guctekin, S. Bilir, S. Karaali +4
We used the updated [Fe/H] abundances of 168 F-G type dwarfs and calibrated them to a third order polynomial in terms of reduced ultraviolet excess, defined with d…
Photometric Calibration of the [/Fe] Element: I. Calibration with UBV Photometry
S. Karaali, E. Yaz Gokce, S. Bilir
We present the calibration of the [/Fe] element in terms of the ultra-violet excess for 469 dwarf stars with mag corresponding the spectral type range…
Local Stellar Kinematics from RAVE data - VII. Metallicity Gradients from Red Clump Stars
O. Onal Tas, S. Bilir, G. M. Seabroke +4
We investigate the Milky Way Galaxy's radial and vertical metallicity gradients using a sample of 47,406 red clump stars from the RAVE DR4. This sample is more than twice the size…