HST Cycle 28 Appendix B: Scientific Keywords

Keywords to be used in APT when submitting a proposal.

The Tables in this Appendix list the Scientific Keywords that are valid for use in the Phase I proposal template.  The science policies group will sort proposals according to the categories and keywords listed below. For additional information on the proposal sorting into each panel, see HST Cycle 28 Proposal Selection Procedures. Please note Phase I keywords were revised and expanded slightly for Cycle 28 to align with the Unified Astronomy Thesaurus.


Solar System Astronomy:

Asteroids

Astronomical models

Astronomical simulations

Atmospheric composition

Atmospheric variability

Binary systems / Multiple systems

Biomarkers

Centaurs

Chemical composition

Comets

Inner planets

Irregular satellites

Main belt asteroids

Minor planets

Natural satellites

Near-Earth objects

Occultation

Orbits

Outer planets

Planetary atmospheres

Planetary rings

Planetary surfaces

Small solar system bodies

Space weather

Surface composition

Surface ices

Surface processes

Surface variability

Trans-Neptunian objects

Transits

Trojan asteroids

Zodiacal cloud

Exoplanets And Exoplanet Formation:

Astronomical models
Astronomical simulations
Biomarkers
Chemical composition
Coronagraphic imaging
Exoplanet atmospheres
Exoplanet atmospheric composition
Exoplanet atmospheric variability
Exoplanet detection methods
Exoplanet evolution
Exoplanet formation
Exoplanet structure
Exoplanet surfaces
Exoplanet systems
Exoplanets
Extrasolar gas giants
Extrasolar ice giants
Extrasolar rocky planets
Free floating planets
Natural satellites (Extrasolar)
Planet hosting stars
Protoplanetary disks (Extrasolar)
Space weather
Transits

Stellar Physics and Stellar Types:

Astrometry
Astronomical models
Astronomical simulations
Binary stars / Trinary stars
Brown dwarf stars
Circumstellar matter
Early-type stars
Evolved stars
Gamma-ray bursts
H II regions
Interstellar dust
Intermediate type stars
Interstellar medium
Late-type stars
Low mass stars
Main sequence Stars
Massive stars
Molecular clouds
Neutron stars
Planetary nebulae
Pre-main sequence stars
Pulsars
Radiative transfer
Stellar abundances
Stellar accretion disks
Stellar atmospheres
Stellar evolution
Stellar jets
Stellar phenomena
Supernovae
Variable stars
White dwarf stars
Young stellar objects 

Stellar Populations (and the ISM):

Astrometry
Astronomical models
Astronomical simulations
Chemical abundances
Dwarf galaxies
Early-type stars
Elliptical galaxies
Galactic center
Galaxy bulges
Galaxy evolution
Galaxy halos
Galaxy spheroids
Globular star clusters
Gravitational microlensing
H II regions
Hertzsprung Russell diagram
Intermediate type stars
Interstellar dust
Interstellar ices
Interstellar medium
Irregular galaxies
Late-type stars
Local Group
Magellanic Clouds
Open star clusters
Planetary nebulae
Population I stars
Population II stars
Population III stars
Star clusters
Star formation
Stellar distance

Galaxies:

Astronomical models
Astronomical simulations
Chemical abundances
Disk galaxies
Dwarf galaxies
Elliptical galaxies
Emission line galaxies
Galaxy bulges
Galaxy classification systems
Galaxy dark matter halos
Galaxy disks
Galaxy environments
Galaxy evolution
Galaxy formation
Galaxy mergers
Galaxy spheroids
Galaxy stellar halos
Galaxy structure
High-redshift galaxies
Infrared photometry
Interacting galaxies
Irregular galaxies
Local Group
Luminous infrared galaxies
Magellanic clouds
Quenched galaxies
Scaling relations
Spectral energy distribution
Star clusters
Star formation
Starburst galaxies
Stellar populations
Ultraluminous infrared galaxies

Intergalactic Medium and the Circumgalactic Medium:

Astronomical models
Astronomical simulations
Circumgalactic medium
Cooling flows
Damped Lyman-alpha systems
Gunn-Peterson effect
Intergalactic dust clouds
Intergalactic medium
Lyman-alpha forest
Metal line absorbers
Warm-hot intergalactic medium

Supermassive Black Holes And Active Galaxies:

AGN host galaxies
Astronomical models
Astronomical simulations
Blazars
Broad-absorption line quasar
Emission line galaxies
Galaxy jets
Galaxy winds
High-luminosity active galactic nuclei
LINER galaxies
Low-luminosity active galactic nuclei
Markarian galaxies
M-sigma relation
Quasars
Quenched galaxies
Radio cores
Reverberation mapping
Seyfert galaxies
Stellar accretion disks
Stellar feedback
Supermassive black holes
X-ray active galactic nuclei

Large Scale Structure of the Universe:

Astronomical models
Astronomical simulations
Chemical abundances
Cooling flows
Cosmic infrared background
Cosmological parameters
Cosmology
Dark energy
Dark matter distribution
Extragalactic Legacy And Deep Fields
Galaxy clusters
Galaxy groups
Gamma-ray bursts
Gravitational lensing
Intracluster medium
Large-scale structure of the universe
Protogalaxies
Protostars
Reionization
Stellar distance
Supernovae