Class Notes (1,100,000)
CA (650,000)
UTSC (30,000)
Astronomy (100)
Lecture

ASTA02H3 Lecture Notes - Gravitational Redshift, Horizontal Branch, White Dwarf


Department
Astronomy
Course Code
ASTA02H3
Professor
Parandis Khavari

This preview shows pages 1-2. to view the full 6 pages of the document.
Astronomy - Tutorial #8.
every main-sequence star
fuses Hydrogen to make Helium to sustain it
until it collapses
 
mass divided by luminosity
determines how long the star will last

 
    
note that any equality for the purpose of this course can be viewed as a proportionality
  
is a constant
 
  

    
cross out the constant for

mass-luminosity relationship
two more lifetime relationships
note that and are constants of proportionality
      
   


cross out
and it becomes

replace with 
main-sequence stars
  (luminosity of the star is )
 and  

Only pages 1-2 are available for preview. Some parts have been intentionally blurred.



  
answer is 0.21
 
equations that will not be provided on the exam
  

  
  
 

distance of the Sun to the center of the galaxy is 800kpc
giants
red
have H-shell burning
inert core
yellow
H-shell burning
He core burning
turning
of its gravitational energy to heat
You're Reading a Preview

Unlock to view full version