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		| Paper: | 
		Interstellar Polarization Efficiency toward the   Galactic Center | 
	 
	
		| Volume: | 
		439, The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies | 
	 
	
		| Page: | 
		59 | 
	 
	
		| Authors: | 
		Hatano, H.; Kurita, M.; Sato, S.; Nishiyama, S.; IRSF/SIRIUS Group | 
	 
	
	
		| Abstract: | 
		We have investigated the magnetic field toward the Galactic center, based on position angles
 and the interstellar polarization efficiency measured from numerous starlight polarization data taken with IRSF/SIRPOL. | 
	 
	
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