EVLA Radio Upper Limits on Nova V5587 Sgr
ATel #3227; Chomiuk, L. (CfA/NRAO), Krauss, M., Rupen, M. (NRAO), Sokoloski, J. (Columbia)
on 18 Mar 2011; 23:02 UT
Credential Certification: Laura Chomiuk (lchomiuk@cfa.harvard.edu)
We observed the nova V5587 Sgr (CBET 2644, IAUC 9196 ) with the EVLA on three dates ranging from 8 to
40 days after discovery (2011 Jan 25.9); all observations yielded non-detections. Below are the UT
dates, flux density measurements with 1-sigma uncertainties, and lower limits on the distance. The
distance limits derive from the assumption that the radio emission is thermal free-free emission
from an optically thick expanding sphere with a temperature of 10^4 K and a radius that increases at
a rate of 1650 km/s.
| Date |
Freq |
Flux Density |
Distance |
| (UT) |
(GHz) |
(microJy) |
(kpc) |
| Feb 1.6 |
5.0 |
-6.6 +/- 8.3 |
> 1.1 |
| Feb 1.6 |
6.8 |
-7.9 +/- 7.7 |
> 1.6 |
| Feb 8.5 |
32 |
-28 +/- 45 |
> 5.9 |
| Mar 5.5 |
5.0 |
-2 +/- 11 |
> 5.1 |
| Mar 5.5 |
7.4 |
-0.9 +/- 9.6 |
> 8.1 |
| Mar 5.5 |
32 |
-17 +/- 92 |
> 11.3 |
EVLA Nova Collaboration Website
