ATCA detection of Nova Centauri 2013

ATel #5685; K. W. Bannister (CASS), L. Chomiuk (Michigan State), M. Rupen (NRAO), J. Sokoloski (U. Columbia)
on 22 Dec 2013; 22:59 UT
Credential Certification: Keith Bannister (keith.bannister@csiro.au)

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The Australia Telescope Compact Array (ATCA) observed Nova Centauri 2013 (IAUC # 9265 , ATel #5649) at for 3 hrs on 2013-12-16.8 in the 750B array. We observed 2 x 2 GHz bands centered on 33 and 35 GHz.

Fitting a synthesized beam to the deconvolved map yielded the following detections:
33 GHz: 366 +- 44 uJy
35 GHz: 394 +- 73 uJy

The best position (J2000) was measured at 33 GHz:
R.A. 13:54:45.3 +- 0.4"
Dec: -59:09:03.9 +- 0.5"

Assuming spherical, optically thick ejecta with a temperature of Tb=10^4K, expanding at 1300 km/sec Atel #5639), and an explosion date of 2013-11-30, we estimate the distance to be approximately 3.3 kpc.

Our next observations will be in early January.

We thank the ATCA staff for scheduling these observations.