SN 2006jd is a Type IIn supernova discovered by LOSS and Itagaki on 12.54 October 2006. This interesting supernova was observed by the CSP beginning 2 weeks from discovery until now (Nov. 2012).
Here is an image of the host galaxy with SN 2006jd indicated. This image was obtained with the Swope telescope located at The Las Campanas Observatory.
Here is a montage of spectra taken with telescopes at Las Campanas and La Silla Observatories, and most recently, on New Years Day '11 with Gemini-North. The spectral sequence covers 50 months of evolution.
And here are the optical and near-infrared light curves. Currently need to add in ri images taken on 26nov10 and BV images taken on 10dec10. Reduced Baade griV images taken with Baade (+ IMACS) on 03jan11. Need to calibrate a local sequence for the deep IMACS images. To be done hopefully on Feb. 4. 2011.
Final optical and near-IR light curves of SN 2006jd are plotted in the above Figure. The extend period of coverage unveils a rich and diverse flux evolution. In the uBgVriY bands the SN declines in brightness in a linear fashion for about 130 days, when upon an abrupt break occurs, followed by a plateau phase extending some 500 days. The relative strength of the plateau is similar in all but the r band, which shows an excess of emission peaking near the end of the plateau phase. The excess peaks in brightness by 1 mag compared to the time of the first break, and is associated with a prevalent increase of H_alpha emission (see above Figure 2). After the break of the plateau, the light curves follow a nearly linear decline in brightness.
Contrary, the near-IR (JHKs) bands exhibit an increase in flux over the first 40 days of observations followed by a break which marks an early onset, compared to the bluer bands, of the plateau phase. It should be noted that the onset of the plateau phase in the J- and H-band light curves suggests some variability that hints towards small amplitude fluctuations that possibly occur over the duration of the plateau phase. Simultaneous to the optical bands, the near-IR light curves are marked with a second break at the end of the plateau phase. Following this break is a long-duration linear phase with photometric coverage following > +1000 days.
Significant radio and X-ray emission has also been detected.
This page was last updated on 03 Jan. 2011.
Maximilian Stritzinger
Go back to Max's home page by clicking here.