Radio Morphology of Red Geysers
  We present 150 MHz, 1.4 GHz, and 3 GHz radio imaging (LoTSS, FIRST and VLASS)
and spatially resolved ionized gas characteristics (SDSS IV-MaNGA) for 140
local ($z<0.1$) early-type "red geyser" galaxies. These galaxies have low star
formation activity (SFR $\sim \rm 0.01\ M_{\odot} yr^{-1}$), but show unique
extended patterns in spatially-resolved emission line maps that have been
interpreted as large-scale ionized winds driven by active galactic nuclei
(AGN). In this work we confirm that red geysers host low-luminosity radio
sources ($\rm L_{1.4GHz} \sim 10^{22} W Hz^{-1}$). Out of 42 radio-detected red
geysers, 32 are spatially resolved in LoTSS and FIRST, with radio sizes varying
between $\sim 5-25$ kpc. Three sources have radio sizes exceeding 40 kpc. A
majority display a compact radio morphology and are consistent with either
low-power compact radio sources ("FR0" galaxies) or "radio-quiet quasars". They
may be powered by small-scale AGN-driven jets which remain unresolved at the
current $5"$ resolution of radio data. The extended radio sources, not
belonging to the "compact" morphological class, exhibit steeper spectra with a
median spectral index of $-0.67$ indicating the dominance of lobed components.
The red geysers hosting extended radio sources also have the lowest specific
star formation rates, suggesting they either have a greater impact on the
surrounding interstellar medium or are found in more massive halos on average.
The degree of alignment of the ionized wind cone and the extended radio
features are either 0$^{\circ}$ or 90$^{\circ}$, indicating possible
interaction between the interstellar medium and the central radio AGN.
