inputs

#sne require=2 
supernova               NOT: dark energy, interstellar medium, ISM, redshift, cosmic microwave, CMB, cosmology, cosmologies
type Ia supernova
SNIa
SN Ia
SNe Ia
Chandrasekhar
degenerate              NOT: CMB, lensing, doped
progenitor              NOT: asteroid, basaltic, jupiter
flame
deflagration
detonation
shell                   NOT: lens, refractive
helium detonation
urca-
thermonuclear
collision

#wdmerger 
white dwarf merger
WD merger
double degenerate
tidal disruption

#xrb
x-ray burst
X-ray bursts
xrb
thin shell instability
thin-shell instability
nova-
superburst

#gpu
CUDA
gpu
openacc
KNL

#hydro require=2
flash
castro
maestro
hydro                   NOT: galaxy, galaxies, cosmology, large scale structure, large-scale structure, dust, cloud, interstellar medium, ISM, interstellar, jets, general relativity, general relativistic, hydrogen, hydrostatic, Lyman
magnetohydrodynamics
MHD
anelastic
low mach
adaptive mesh refinement
AMR
RHD
radiation hydrodynamics
convection
convective              NOT: dust, cloud
rayleigh-taylor
kelvin-helmholtz
turbulence              NOT: cluster, interstellar, cloud, galactic, nebula, adaptive optics, seeing, guide star, molecular, disks, dust
shock
well-balanced
rotation                NOT: galaxy, cluster, disk, hubble, quantum, spectrum, asteroid
rotating                NOT: galaxy, cluster, disk
fluid dynamics
CFL
CFD
nonlinear
boundary conditions
plasma
simulation
converge

#random require=2
code                    NOT: photometry, telescope, spectrograph, spectra, galaxy, galaxies, dark matter, dark energy, large scale structure, large-scale structure
software                NOT: surveys
python
open source
jupyter
julia
reproducibility