|   | 
				
					
	
		  | 
	 
	
		| Paper: | 
		A Phase-Centric Analytical Approach to the O–C Diagram | 
	 
	
		| Volume: | 
		469, 18th European White Dwarf Workshop (EUROWD12) | 
	 
	
		| Page: | 
		45 | 
	 
	
		| Authors: | 
		Dalessio, J.; Provencal, J. L.; Barlow, B. N.; Shipman, H. L. | 
	 
	
	
		| Abstract: | 
		The O–C diagram is a fundamental tool in time domain astronomy. Much of the existing O–C formalism focuses on long period variations and discreet observations of times of maximum light. We present phase-centric O–C formalism more appropriate for short period variables like white dwarfs and subdwarf B stars and derive an analytical model for O–C under all combinations of frequency and signal travel time variation. | 
	 
	
		| 
			
			
		 | 
	 
	
		  | 
	 
 
					 
				 | 
				  |