Discovery of Millisecond Pulsar and Transient Radio Emission within the Stellar Cluster Glimpse C01

We present the discovery of a new millisecond pulsar and the detection of radio transients in the stellar cluster Glimpse C01. Using images from the VLA Low-band Ionosphere and Transient Experiment (VLITE) centered at a frequency of 340 MHz, we searched 94 globular clusters for steep spectrum radio sources. We cross-correlated with several radio sky surveys to further analyze the sources and to calculate spectral indices. We identified a strong pulsar candidate with a steep spectral index (alpha ~ -2.7), which is well within the expected range for pulsars. After re-processing Green Bank Telescope S-band data from 2005, we detected a pulsar with a spin period of 19.78 ms within the cluster. This discovery demonstrates that searches for steep spectrum sources as pulsar candidates are effective in areas of high dispersion. We also observed transient radio emission following the X-ray outburst MAXI J1848-015. This has been identified with a black hole in the center of the cluster; if associated, then the radio emission may be caused by jets from the black hole that appeared within a year of the X-ray outburst.