Exploring the Corona With the Newest Coronagraph at the Mauna Loa Solar Observatory (MLSO)

Authors: Joan Burkepile (High Altitude Observatory HAO), Steven Tomczyk (HAO), Ben Berkey (HAO), Marc Cotter (HAO) , Michael Galloy (HAO), Sarah Gibson (HAO), Don Kolinski (HAO), Enrico Landi (University of Michigan), Lisa Perez-Gonzalez (HAO), Scott Sewell (HAO), Giuliana de Toma (HAO), Patrick Zmarzly (HAO)

HAO has successfully deployed the new Upgraded Coronal Multi-Channel Polarimeter (UCoMP) to the Mauna Loa Solar Observatory. UCoMP is a major upgrade of the CoMP instrument. Its expanded capabilities include:  observations over a wide range of coronal temperatures to explore the magneto-thermal structure of the corona; a larger field-of-view; higher spatial resolution; and dramatically faster collection of the full Stokes polarization that provides higher quality polarimetry measurements. UCoMP will provide powerful diagnostic measurements of the coronal magnetic field and plasma properties. The larger field-of-view allows it to explore the magnetic and thermal properties of dynamic structures such as Coronal Mass Ejections (CMEs), and ambient coronal structures out to greater heights. The UCoMP observations complement the MLSO K-Cor white light coronagraph, that is designed to track CMEs at a very high cadence (15 seconds).

UCoMP is nearing completion of its commissioning phase. This work included validation of the calibration and processing steps used to produce Level-1 and Level-2 science data.  We provide examples of the variety of UCoMP science data products and highlight some of the science that can be explored with these exciting new observations. We illustrate how UCoMP and K-Cor coronagraph data can be combined and used with models to explore coronal magnetic field and plasma conditions. We discuss synergies of UCoMP observations with DKIST, FASR and other missions.