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release_notes_full_UAT_5.1.0.md

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Unified Astronomy Thesaurus v.5.1.0 Release Notes

Version 5.1.0 of the Unified Astronomy Thesaurus consists of a polyhierarchy with 2275 concepts, 11 top concepts, a depth of 11 levels, with 692 related concept links.

Release Date: 06/20/2024

Overview of Changes

  • Deprecated 1 concepts.
  • The preferred label of 2 concepts were updated to add context, clarity, and consistency.
  • Added or updated AltLabels for 4 concepts.
  • Edited 7 definitions.
  • Resolves Issues in Milestone Release 5.1.0.

Detailed List of Changes

Updated the preferred label of 1 concepts:

Concept URI Old PrefLabel New PrefLabel
http://astrothesaurus.org/uat/1782 VY Sculpturis stars VY Sculptoris stars

Alternate Labels added or updated for 4 concepts:

Concept URI PrefLabel Alternate Labels
http://astrothesaurus.org/uat/477 Ethnoastronomy Sociology of astronomy, Astrosociology
http://astrothesaurus.org/uat/1705 Trans-Neptunian objects Trans–Neptunian objects
http://astrothesaurus.org/uat/1782 VY Sculptoris stars VY Sculpturis stars
http://astrothesaurus.org/uat/2291 James Webb Space Telescope JWST

Definitions added for 7 concepts:

Concept URI PrefLabel Definition
http://astrothesaurus.org/uat/628 Gamma-ray astronomy The study of gamma rays from extraterrestrial sources, especially gamma-ray bursts. Gamma-rays are an electromagnetic wave with a typical wavelength less than 10-2Å (10-12 m), corresponding to frequencies above 1019 Hz and photon energies above 100 keV.
http://astrothesaurus.org/uat/729 Hickson compact group A list of 100 compact groups of galaxies that were identified by a systematic search of the Palomar Observatory Sky Survey red prints. Each group contains four or more galaxies, has an estimated mean surface brightness brighter than 26.0 magnitude per arcsec2 and satisfies an isolation criterion.
http://astrothesaurus.org/uat/786 Infrared astronomy The study of infrared properties of astronomical objects. Infrared is the invisible part of electromagnetic spectrum possessing wavelengths between those of visible light and those of radio waves, i.e. approximately between about 0.75 and 1000 μm.
http://astrothesaurus.org/uat/1329 Radar astronomy Astronomy in which celestial bodies in the solar system are studied by analyzing the return of radio waves directed at them.
http://astrothesaurus.org/uat/1338 Radio astronomy The branch of astronomy that deals with the study of the Universe by means of radio waves. Radio waves are the electromagnetic radiation with the longest wavelengths (and lowest energies), ranging from 0.3 mm to several km. Radio waves form a very broad category, which includes the submillimeter waves (with a wavelengths of 0.3-1 mm) and microwave regions (1mm to several cm).
http://astrothesaurus.org/uat/1776 Optical astronomy An area of astronomy where astronomers observe and analyse light from the Universe that falls within the wavelength range that the human eye is sensitive to, about 400 nm (violet) to 750 nm (red), which is also referred to as visible light.
http://astrothesaurus.org/uat/1810 X-ray astronomy The study of celestial bodies using their X-ray emission. X-ray astronomy deals mainly with Galactic and extragalactic phenomena involving very high-energy photon emissions, covering a band of energies between 0.1 keV and 500 keV. The research field includes: X-ray binaries, cataclysmic variables, pulsars, black holes, dark matter, active galaxies, galactic clusters X-ray transients. The Earth's atmosphere absorbs most X-rays coming from outer space. X-ray astronomy therefore requires observations to be done above atmosphere.

Deprecated 1 Concepts:

Deprecated Concept URI Deprecated Concept PrefLabel Reason
http://astrothesaurus.org/uat/1470 Sociology of astronomy Duplicate concept, merged into http://astrothesaurus.org/uat/477