We use ALLWISE data release W1- and W2-band epoch photometry collected by the Wide-Field Infrared Survey Explorer (WISE) to determine slopes of the period-luminosity relations for RR Lyrae stars in 15 globular clusters in the corresponding bands. We further combine these results with V- and K-band photometry of Galactic field RR Lyrae stars to determine the metallicity slopes of the log PF - [Fe/H]-MK, log PF - [Fe/H]-MW1, and log PF - [Fe/H]- MW2 period-metallicity-luminosity relations. We infer the zero points of these relations and determine the kinematical parameters of thick-disk and halo RR Lyraes via statistical parallax, and estimate the RR Lyrae-based distances to 18 Local-Group galaxies including the center of the Milky Way.

ABSTRACT
1. INTRODUCTION
2. THE DATA
3. PERIOD SLOPES α 
4. METALLICITY SLOPES β
5. ZERO POINTS ɤ
    5.1. Calibration via HST FGS trigonometric parallaxes
    5.2. Calibration via the Method of Statistical Parallax
6. DISTANCES TO LOCAL GROUP GALAXIES
REFERENCES

• Andrei K. Dambis(Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University)
• L. N. Berdnikov(Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University/Astronomy and Astrophysics Research division, Entoto Observatory and Research Center)
• A. Yu. Kniazev(Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University/South African Astronomical Observatory/Southern African Large Telescope)
• V. V. Kravtsov(Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University/Departamento de Fisica, Facultad de Ciencias Naturales, Universidad de Atacama)
• A. S. Rastorguev(Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University)
• R. Sefako(South African Astronomical Observatory)
• O. V. Vozyakova(Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University)
• M. V. Zabolotskikh(Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University)