NASA Exoplanet Archive

NASA Exoplanet Archive
Name	NASA Exoplanet Archive
Established	2011
Type	Scientific database
Location	California
Affiliated	California Institute of Technology

NASA Exoplanet Archive The NASA Exoplanet Archive is a curated astronomical database that aggregates observational and derived data on extrasolar planets from missions and observatories. It serves researchers by integrating catalogs, light curves, spectra, and model results drawn from programs and institutions across the United States and internationally. The Archive supports analysis pipelines, mission planning, and cross-mission synthesis connecting space telescopes, ground observatories, and theoretical consortia.

Overview

The Archive compiles confirmed and candidate planetary data reported by projects such as Kepler, K2, Transiting Exoplanet Survey Satellite, Spitzer Space Telescope, Hubble Space Telescope, Chandra X-ray Observatory, and arrays like Very Large Array, Atacama Large Millimeter Array, Subaru Telescope. It links catalogs produced by teams including California Institute of Technology, Jet Propulsion Laboratory, Smithsonian Astrophysical Observatory, Space Telescope Science Institute, European Southern Observatory, and surveys like SuperWASP, HATNet Project, MEarth Project, The Next-Generation Transit Survey and Wide Angle Search for Planets. The Archive interoperates with archives and services such as SIMBAD, VizieR, Mikulski Archive for Space Telescopes, European Space Agency, Gaia, Two Micron All Sky Survey, and mission archives from Keck Observatory and Gemini Observatory.

History and Development

The Archive was developed amid institutional efforts by teams at California Institute of Technology, NASA Ames Research Center, and Jet Propulsion Laboratory to centralize exoplanet information created by programs including Kepler Mission, COROT, OGLE and amateur-professional collaborations like AAVSO. Early milestones involved integration of data from discovery announcements by researchers such as teams led by Geoffrey Marcy, Michel Mayor, Didier Queloz, Rene Heller, Debra Fischer, and projects tied to awards including the Nobel Prize in Physics recognition of exoplanet pioneers. Development cycles coordinated with institutions like National Aeronautics and Space Administration, National Science Foundation, NASA Goddard Space Flight Center and international partnerships with European Southern Observatory and Canadian Space Agency groups. The Archive evolved alongside catalog efforts such as the Exoplanet Orbit Database, publications in journals like The Astrophysical Journal, Astronomy & Astrophysics, Monthly Notices of the Royal Astronomical Society, and community standards from organizations including the International Astronomical Union.

Data Content and Services

Data holdings encompass confirmed planets, candidate lists from Kepler and TESS, radial velocity data from instruments like HARPS, HIRES (Keck), and spectroscopic data from NIRSPEC, CRIRES. The Archive stores time-series photometry, transit models, stellar parameters cross-matched with catalogs such as Gaia, Hipparcos, 2MASS, and Sloan Digital Sky Survey entries. It provides vetted parameter tables following conventions used by authors publishing in Science (journal), Nature (journal), and community products such as NASA Exoplanet Science Institute releases, and integrates planet validation results from groups like NASA Exoplanet Exploration Program science teams and researchers including Timothy Morton and Jason Eastman. Ancillary services include citation-tracking for discoveries announced at conferences like American Astronomical Society meetings and missions updates from Jet Propulsion Laboratory briefings.

Tools and Software

The Archive offers interactive tools and APIs used by mission teams such as Kepler and TESS for target selection and follow-up coordination with observatories like Palomar Observatory, Lick Observatory, Magellan Telescopes, Very Large Telescope. Analysis software includes light curve viewers, periodogram tools based on algorithms authored by researchers such as Scargle and implementations in libraries used by contributors from Center for Computation & Technology and academic groups at University of California, Berkeley, Massachusetts Institute of Technology, Princeton University. The API and data services interoperate with community platforms including Astroquery, Lightkurve, ExoFOP, and workflow tools from NASA Advanced Supercomputing Division and computational projects at Jet Propulsion Laboratory.

Scientific Impact and Usage

Researchers across institutions including Harvard University, University of Cambridge, University of Geneva, Max Planck Institute for Astronomy, University of Tokyo, University of Sydney use the Archive for statistical population studies, occurrence rate estimates originating from Kepler and TESS samples, atmospheric retrievals that reference spectra from Hubble Space Telescope and Spitzer Space Telescope, and dynamical analyses using radial velocities from Keck Observatory and European Southern Observatory instruments. Studies citing Archive data appear in journals like The Astrophysical Journal Letters, Nature Astronomy, and fuel proposals to facilities such as James Webb Space Telescope, European Space Agency missions, and ground-based consortia coordinating follow-up through networks including Las Cumbres Observatory. The Archive underpins community resources for education and outreach connected to institutions like SETI Institute and public events at Smithsonian Institution centers.

Access, Data Policy, and Funding

Access to the Archive is provided freely to researchers and the public, aligning with policies from National Aeronautics and Space Administration and funding from NASA, cooperative agreements with California Institute of Technology, and support from programs administered by NASA Science Mission Directorate and NASA Headquarters. Data provenance includes contributions from projects funded by National Science Foundation, mission teams such as Kepler and TESS and collaborations with observatories like European Southern Observatory, National Radio Astronomy Observatory, and archives managed by Space Telescope Science Institute. Data use follows citation norms encouraged by journals such as The Astrophysical Journal and community guidelines from the International Astronomical Union.

Category:Astronomical databases