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ATCA observation of SGR J1550-5418

ATEL # 1965; Aquib Moin (Curtin Institute of Radio Astronomy / Australia Telescope National Facility), Steven Tingay (Curtin Institute of Radio Astronomy), Chris Phillips (Australia Telescope National Facility), Gregory Taylor (University of New Mexico), Mark Wieringa (Australia Telescope National Facility) and Ralph Martin (Perth Observatory)
on 12 Mar 2009; 8:40 UT
Password Certification: Aquib Moin (

Subjects: Radio, Soft Gamma-ray Repeaters

We observed the SWIFT-BAT position of recently re-activated Soft Gamma-ray Repeater source SGR J1550-5418 or AXP 1E1547-5408 (GCN 8833) at 4.800 and 4.928 GHz with the Australia Telescope Compact Array (ATCA) between 01:00:00 UT and 22:00:00 UT on February 21/22, 2009. The ATCA observations of SGR J1550-5418 were conducted immediately before the VLBI ToO observations of the source with the Australian Long Baseline Array (LBA). We clearly detected a radio source at the position of the SGR J1550-5418. The data at 4.800 and 4.928 GHz were combined to make an image and the radio flux density at the source position found out to be 68.3 +/- 4.3 mJy/beam. The Australia Telescope Compact Array (/ Parkes telescope / Mopra telescope / Long Baseline Array) is part of the Australia Telescope which is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO. See the 4.800 & 4.928 GHz combined image at:

SGR J1550-5418 field image

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R. E. Rutledge , Editor
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