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						 Search for Vulcanoid Asteriods  - Page 6
						 
						Do Vulcanoids Exist? - The On-going Debate
						   
							
								
								Evens and Tabachnik model (2000)
								
									
									> 50m Vulcanoids can exist 5 billion years in Vulcanoid Zone
									 
 
								Vokrouhlicky, Farinella & Bottke (2000 paper)
								
									
									Vulcanoids should be pushed out of zone in 1 billion years due to
									Yarkovsky effect
									
									Argue that Mercury bombardment does not support a significant
									primordial Vulcanoid population
									 
 
								Durda's team established a Vulcanoid brightness limit
								
									
									Used SOHO data to show no Vulcanoids brighter than +8.0
									
										
										If Vulcanoids look like Mercury: must be < 20 km to 60 km in diameter
										
										If the largest Vulcanoid was just under their size limit, then 1800 to
										42000 Vulcanoids > 1-km in diameter might exist due to power law
										 
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