Appendix B: Science 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 proposal template. 

Within a panel, proposals are assigned to individual reviewers based on the reviewers' expertise and based partly on the keywords given in the proposal and partly on analysis of the proposal text. Generally, the more keywords the proposer selects the better the match to reviewers' expertise. Proposals can designate both a Science Category and an Alternate Category. Designating an Alternate Category enables usage of keywords from multiple categories. The Science Mission Office at STScI reserves the right to re-classify proposals.

For additional information on the proposal sorting into each panel, see HST Proposal Selection Procedures. The HST Scientific Categories and Keywords were developed using the Unified Astronomy Thesaurus beginning in Cycle 28.


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


Stellar Physics and Stellar Types:

Astrometry
Astronomical models
Astronomical simulations

Binary stars / Trinary stars

Black holes

Brown dwarf stars
Circumstellar disks
Circumstellar matter
Early-type stars
Evolved stars
Gamma-ray bursts
Gravitational wave sources
H II regions
High contrast techniques
Interacting binary stars
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 mergers
Stellar phenomena
Stellar structures
Supernovae
Transient sources
Variable stars
White dwarf stars
Young stellar objects 


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 kinematics
Galaxy mergers
Galaxy spheroids
Galaxy stellar halos
Galaxy structure
High-redshift galaxies
Infrared photometry
Interacting galaxies

Interstellar dust

Irregular galaxies
Local Group
Luminous infrared galaxies

Lyman-break galaxies

Magellanic Clouds

Molecular gas

Nearby galaxies

Polycyclic aromatic hydrocarbons

Population III stars

Quenched galaxies
Scaling relations
Spectral energy distribution
Star clusters
Star formation
Starburst galaxies
Stellar populations
Ultraluminous infrared galaxies


Intergalactic Medium and 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


Exoplanets and Exoplanet Formation:

Astronomical models
Astronomical simulations
Biomarkers
Chemical composition
Circumstellar disks
Debris disks
Exoplanet atmospheres
Exoplanet atmospheric composition
Exoplanet atmospheric variability
Exoplanet evolution
Exoplanet formation
Exoplanet structure
Exoplanet surfaces
Exoplanet systems
Exoplanets
Extrasolar gas giants
Extrasolar ice giants
Extrasolar rocky planets
Free floating planets

High contrast techniques

Natural satellites (Extrasolar)
Planet hosting stars
Protoplanetary disks (Extrasolar)
Space weather
Transits


Stellar Populations and the Interstellar Medium:

Young stellar objects

Stellar population synthesis

Stellar kinematics

Stellar distance

Star formation histories

Star formation
Star clusters

Resolved stellar populations

Population III stars
Population II stars
Population I stars
Polycyclic aromatic hydrocarbons
Planetary nebulae
Open star clusters

Molecular gas

Molecular clouds

Magellanic Clouds

Low metallicity stars

Low mass star formation

Local Group
Late-type stars
Irregular galaxies
Interstellar medium
Interstellar ices
Interstellar dust

Interstellar atomic gas

Intermediate type stars

Initial mass function

High mass star formation

Hertzsprung Russell diagram
H II regions
Gravitational microlensing
Globular star clusters
Galaxy spheroids
Galaxy halos
Galaxy evolution
Galaxy bulges
Galactic center
Elliptical galaxies
Early-type stars
Dwarf galaxies
Chemical abundances
Astronomical simulations
Astronomical models
Astrometry

Astrochemistry


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 contrast techniques

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

Hubble constant

Intracluster medium
Large-scale structure of the universe

Low densities

Lyman-break galaxies

Overdensities

Protoclusters

Protogalaxies
Protostars
Red giant tip
Reionization
Stellar distance
Supernovae