Difference: GCNCIRCULAR21803 ( vs. 1)

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META TOPICPARENT	name="LVCGCNs"

TITLE: GCN CIRCULAR
NUMBER: 21803
SUBJECT: LIGO/Virgo G298048: ATCA monitoring of SSS17a in NGC 4993
DATE: 17/09/04 02:26:14 GMT
FROM: Elenora Troja at GSFC/Swift <nora.gsfc@gmail.com>

E. Troja (UMD/GSFC), R. Ricci (INAF), M. Wieringa (CSIRO), and L. Piro (INAF) report:

On 01 Sep 2017, we observed the field of SSS17a (Coulter et al., LVC GCN 21529) with the Australia Telescope Compact Array (ATCA) at the central frequencies of 16.7, 21.2, 43 and 45 GHz, each with a bandwidth of 2 GHz.

At the position of the optical/IR and X-ray source (Troja et al., LVC GCN 21765, 21787) we report the following 3-sigma upper limits:

17/21 GHz < 50 uJy 43/45 GHz < 90 uJy

Further observations are planned.

We thank the CSIRO staff for approving and executing these observations.

-- ThomasKupfer - 04 Sep 2017

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