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[Books & Magazine] Pulsating Stars A NATURE Reprint

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Post time 27-4-2024 06:31 PM | Show all posts |Read mode

Free Download Pulsating Stars: A NATURE Reprint by F. G. Smith , A. Hewish
English | PDF | 1968 | 100 Pages | ISBN : 1489961917 | 18.9 MB
THE  discovery  of  the  pulsating  radio  stars  by  Miss Jocelyn  Bell, working  with  Dr  Hewish  at  Cambridge, rivals  the  early  classic discoveries  of  extraterrestrial radio  sources  in  its  importance  and  in  its  excitement. It  may  at  first  have  seemed  to  be  a  lucky  accident  that the  pulsars,  as  they  are  now  called, should  be  detected first  in  an  experiment  designed  to  investigate  the  solar wind;  the  fact  that  for several  months  after  the  publica- tion  of  the  discovery  no  other  pulsars  had  been  detected in  any  other  radio  observatory  shows  that  the  discovery followed  naturally  on  the  many  years  of  work  that Hewish  has  put  into  the  study  of  another  type  of fluctuating signal,  the  interplanetary  scintillation  of discrete radio sources.

The  announcement  of  the  discovery  of  the  first pulsating  radio  source was  made  in  February  1968 (paper  1) followed  by  the  details  of  the  three  others  in April (2).  The  excitement  spread  rapidly  among  obser- vers  and  theorists  alike,  and  their  work  found a  ready forum  in  Nature  where  in  the  next  5  months  more  than forty  papers  were published. Two weeks  after  the  first announcement  an  article  from  Jodrell  Bank  (6) described observations  of  CP  1919  over  a wide  range  of radio  frequencies, giving pulse shapes,  an  average pulse profile,  and  a description  of  the  remarkable fading  pattern  of  the  signal  strength.  The  flood  of theory  started  with  two  papers  (42, 39)  only  three weeks  later.


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