Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/alfa/galfa/meetings/1/talks/koo1_files/text3.htm
Дата изменения: Tue May 6 07:29:16 2003
Дата индексирования: Sun Dec 23 06:30:36 2007
Кодировка:

Slide 4 First page Back Continue Last page Summary Graphics

How many do we expect to see?

SN rate ´ life time of HI SNRs
~ 1/50 yr-1 ´ 106 yrs = 2 ´ 104 !
In reality,
- Most of them are not observable due to the Galactic background emission
- Core-collapse SNe might produce superbubbles instead of isolated SNRs
- A significant fraction of SN Ia explodes either in the HI halo or in the central hole of the Galaxy
- …

How many do we expect to see?

SN rate ´ life time of HI SNRs

~ 1/50 yr-1 ´ 106 yrs = 2 ´ 104 !

In reality,

Notes: