The Transient Radio Sky

The Transient Radio Sky
Author :
Publisher : Springer Science & Business Media
Total Pages : 195
Release :
ISBN-10 : 9783642196270
ISBN-13 : 3642196276
Rating : 4/5 (276 Downloads)

Book Synopsis The Transient Radio Sky by : Evan Francis Keane

Download or read book The Transient Radio Sky written by Evan Francis Keane and published by Springer Science & Business Media. This book was released on 2011-07-16 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high time-resolution radio sky represents unexplored astronomical territory. This thesis presents a study of the transient radio sky, focussing on millisecond scales. As such, the work is concerned primarily with neutron stars. In particular this research concentrates on a recently identified group of neutron stars, known as RRATs, which exhibit radio bursts every few minutes to every few hours. After analysing neutron star birthrates, a re-analysis of the Parkes Multibeam Pulsar Survey is described which has resulted in the discovery of 19 new transient radio sources. Of these, 12 have been seen to repeat and a follow-up campaign of observations has been undertaken. These studies have greatly increased our knowledge of the rotational properties of RRATs and enable us to conclude that they are pulsars with extreme nulling and/or pulse-to-pulse modulation. Although the evolution of neutron stars post-supernova is not yet understood, it seems that RRATs fit into the emerging picture in which pulsar magnetospheres switch between stable configurations.


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