astr250 f17 death - eldora.as.arizona.edu

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10/8/17 1 Stellar Evolu1on Remnants

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Page 1: ASTR250 F17 Death - eldora.as.arizona.edu

10/8/17  

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Stellar  Evolu1on  Remnants  

Page 2: ASTR250 F17 Death - eldora.as.arizona.edu

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Planetary  Nebula  :  post-­‐AGB  star  sheds  its  atmosphere  

White  Dwarf    -­‐  LeIover  core  of  AGB  star  

Page 3: ASTR250 F17 Death - eldora.as.arizona.edu

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White  Dwarf  Masses  

1.4  Msun  

Supernova  leading  to  neutron  star  or  black  hole  Mass  loss  from  RGB,  HB,  

AGB,  and  PN  phases  

Which  is  hoSer  and  why?  

Page 4: ASTR250 F17 Death - eldora.as.arizona.edu

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Supernova  

Supernova  Remnant  

SN  1054  

Page 5: ASTR250 F17 Death - eldora.as.arizona.edu

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Type II – core collapse

Type Ia – accreting white dwarf detonates

Page 6: ASTR250 F17 Death - eldora.as.arizona.edu

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Pulsar  –  Radio  Detected  Neutron  Star  

Radio  flu

x  

Time  

Page 7: ASTR250 F17 Death - eldora.as.arizona.edu

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Black  Hole