We present late-time observations of the site of the Type Ibn supernova ( SN ) 2006jc acquired with the Hubble Space Telescope Advanced Camera for Surveys .
A faint blue source is recovered at the SN position with brightness m _ { F 435 W } = 26.76 \pm 0.20 , m _ { F 555 W } = 26.60 \pm 0.23 and m _ { F 625 W } = 26.32 \pm 0.19 mags , although there is no detection in a contemporaneous narrow-band \mathrm { H \alpha } image .
The spectral energy distribution of the late-time source is well fit by a stellar-like spectrum ( \log T _ { eff } > 3.7 and \log L / L _ { \odot } > 4 ) subject to only a small degree of reddening consistent with that estimated for SN 2006jc itself at early-times .
The lack of further outbursts after the explosion of SN 2006jc suggests that the precursor outburst originated from the progenitor .
The possibility of the source being a compact host cluster is ruled out on the basis of the source ’ s faintness , however the possibility that the late-time source maybe an unresolved light echo originating in a shell or sphere of pre-SN dust ( within a radius 1 \mathrm { pc } ) is also discussed .
Irrespective of the nature of the late-time source , these observations rule out a luminous blue variable as a companion to the progenitor of SN 2006jc .