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• 001 Exact sciences and technology.
  • 001E Earth, ocean, space. (See also 001D14F, 001D06B02B, 001D06B01B, 001C02D)
    • 001E03 Astronomy.
      • 001E03D Stellar systems. Galactic and extragalactic objects and systems. The Universe.
        • 001E03D58 Interstellar medium (ISM) and nebulae in external galaxies.
          • 001E03D58G H I regions and 21-cm lines ; diffuse, translucent, and high-velocity clouds.

Title

• en : H I regions and 21-cm lines ; diffuse, translucent, and high-velocity clouds.
• fr : Régions H I et raies à 21 cm ; nuages diffus, translucides et à grande vitesse.

SKOS Notation

001E03D58G

In the plan

Pascal Classification Scheme