Blue Satellite Bands and Photoassociation near 7$P_{3/2}$ and 7$P_{1/2}$ Atomic Limits in Cesium

We present observation of atomic self-broadening at ultracold temperatures in cesium near 7$P_{3/2}$ and 7$P_{1/2}$ atomic limits using a MOT and resonant ionization detection. Blue satellite band features were observed at detunings of 560 MHz and 800 MHz. In addition, sharp hyperfine-split photoassociative spectra were observed on the red and blue wings of each line. Given the local maxima in the long range molecular structure (beyond 50 $\AA$), possible explanations of these features are discussed.