  We use combined South Pole Telescope (SPT)+Planck temperature maps to analyze
the circumgalactic medium (CGM) encompassing 138,235 massive, quiescent 0.5
$\leq$ z $\leq$ 1.5 galaxies selected from data from the Dark Energy Survey
(DES) and Wide-Field Infrared Survey Explorer (WISE). Images centered on these
galaxies were cut from the 1.85 arcmin resolution SPT-SZ maps with frequency
bands at 95, 150, and 220 GHz. The images were stacked, filtered, and fit with
a gray-body dust model to isolate the thermal Sunyaev-Zel'dovich (tSZ) signal,
which is proportional to the total energy contained in the CGM of the galaxies.
We detect the tSZ effect around these $M_{\star} = 10^{10.9} M_\odot$ -
$10^{12} M_\odot$ galaxies with an overall signal to noise ratio of
$10.1\sigma$. This is large enough to allow us to separate them into 0.1 dex
stellar mass bins, with corresponding tSZ detections of up to $5.6\sigma$. We
also detect dust emission in these quiescent galaxies with signal to noise
ratio of $9.8\sigma$, which is significantly brighter at 150GHz, relative to
the tSZ signal, than measured at lower redshifts. We correct for the $0.16$ dex
uncertainty in the stellar mass measurements by parameter fitting for an
unconvolved power-law energy-mass relation, $E_{\rm therm} = E_{\rm therm,peak}
\left(M_\star/M_{\star,{\rm peak}} \right)^\alpha$, with the peak stellar mass
distribution of our selected galaxies defined as $M_{\star,{\rm peak}}= 2.3
\times 10^{11} M_\odot$. This gives fit values of $E_{\rm therm,peak}=
5.98_{-1.00}^{+1.02} \times 10^{60}$ ergs and $\alpha=3.77_{-0.74}^{+0.60}$.
These values are consistent with $z \approx 0$ observations and within the
limits of moderate models of active galactic nuclei (AGN) feedback. We also
compute the radial profile of our full sample, which is similar to that
recently measured at lower-redshift by Schaan et al. (2020).
