Bridging the Ultraviolet and Optical Regions: Transformation Equations between {\it GALEX} and {\it UBV} Photometric Systems

Abstract

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, and as a function of both luminosity class and metallicity. The metallicities are provided from the literature, while the luminosity classes are determined by using the PARSEC mass tracks in this study. Small colour residuals and high squared correlation coefficients promise accurate derived colours. The application of the transformation equations to 70 stars with reliable data shows that the metallicity plays an important role in estimation of more accurate colours.

16 pages, including 14 figures and 6 tables, accepted for publication in PASA

References in corpus (10)

• The Milky Way Tomography with SDSS: II. Stellar Metallicity
• Stellar SEDs from 0.3-2.5 Microns: Tracing the Stellar Locus and Searching for Color Outliers in SDSS and 2MASS
• Time-correlation between the radio and gamma-ray activity in blazars and the production site of the gamma-ray emission
• Distances and parallax bias in Gaia DR2
• Abundances in the Local Region II: F, G and K Dwarfs and Subgiants
• Setting UBVRI Photometric Zero-Points Using Sloan Digital Sky Survey ugriz Magnitudes
• Estimation of galactic model parameters in high latitudes with SDSS
• Improved $u^{\prime }{g}^{\prime }{r}^{\prime }{i}^{\prime }{z}^{\prime }$ to $UBV{R}_C{I}_C$ Transformation Equations for Main Sequence Stars
• The metallicity distributions in high-latitudes with SDSS
• Radial velocities in the outermost disk toward the anticenter