e-VLBI observations of GRB 080409 afterglow with an Australasian radio telescope network

• 来源期刊: 天文和天体物理学研究
• 年，卷（期）: 2016,（11）
• 页码范围: 1-6
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-4527/16/11/164

摘要

Transcontinental e-VLBI observations were conducted in June 2008 with telescopes in Australia,China and Japan.Detections were made of the radio-loud quasar PKS B0727-115,which shows superluminal motion,and the intra-day variable quasar PKS B0524+034.The latter source was used as a phase reference calibrator for observations at the position of the gamma-ray burst GRB 080409,for which an upper limit to the radio emission is set.Australia Telescope Compact Array data were also used to derive a limit on the radio flux density of the GRB afterglow.These observations demonstrate the capability to form a large Australasian radio telescope network for e-VLBI,with data transported and processed in realtime over high capacity networks.This campaign represents the first step towards more regular e-VLBI observations in this region.