Online analysis of ROTSE-III sky patrol fields has revealed an interesting transient which has been previously designated 2QZ J142701.6-012310. This object is below our limiting magnitude in images taken up until 21 January 2005, and has been around 15th magnitude for at least 3 days starting on 23 January 2005.
The Sloan Digital Sky Survey location reveals a very blue counterpart at 20th magnitude. The object is very blue as can be seen in the SDSS color-color plots for the field. It should be noted that the counterpart is not resolved in the SDSS images, and is pointlike.
The counterpart is also listed as a possible blazar by the 2dF redshift survey, which has a spectrum taken during quiescence at some time in the past. Finally, we (Quimby, et al) got a spectrum of the blazar during outburst on the night of 25 January on the HET telescope using TOO time for follow-up to ROTSE-III transients. There is order overlap redward of 7700 AA. This is a low resolution (~16 AA) spectrum.
Also of note is that an X-ray light curve from the last two weeks of RXTE-ASM data shows it is x-ray quiet to a three-sigma upper limit of 6 mCrab (2-12 keV).
At this time we have been unable to conclusively label this object a blazar or a CV. We have not been able to attribute a convincing redshift to the quiescent spectrum. If it is close (z\<0.2) and is a blazar, it might be an interesting target for H.E.S.S.
The position of the object is (J2000):
|RA: 216.75665||DEC: -1.38609|