Regions of low molecular column density near the galactic plane
Journal Article
·
· Astrophys. J., Suppl. Ser.; (United States)
A partial survey of the first quadrant of the galactic plane in the /sup 12/CO J = 1-0 transition has been searched for emission-free positions. Over 100 directions at low galactic latitude have been found which have no molecular clouds along the line of sight. The antenna temperature in these directions is <0.5 K for all galactic velocities, implying N(H/sub 2/)<1 x 10/sup 21/ cm/sup -2/ and A/sub v/<1.5 mag. These directions may be used to study distant visual objects or as ''off'' positions for radio and infrared spectroscopy.
- Research Organization:
- Princeton University Observatory
- OSTI ID:
- 5668220
- Journal Information:
- Astrophys. J., Suppl. Ser.; (United States), Journal Name: Astrophys. J., Suppl. Ser.; (United States) Vol. 52:3; ISSN APJSA
- Country of Publication:
- United States
- Language:
- English
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Observations of neutral hydrogen near the galactic plane
INTERMEDIATE-VELOCITY MOLECULAR GAS AT HIGH NORTHERN GALACTIC LATITUDES
Bending of the galactic plane and the nature of the high velocity clouds
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Wed Oct 31 23:00:00 EST 1973
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Related Subjects
640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMISTRY
COORDINATES
COSMIC GASES
COSMOCHEMISTRY
DISTRIBUTION
FLUIDS
GASES
NOISE
OXIDES
OXYGEN COMPOUNDS
RADIAL VELOCITY
SPATIAL DISTRIBUTION
VELOCITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMISTRY
COORDINATES
COSMIC GASES
COSMOCHEMISTRY
DISTRIBUTION
FLUIDS
GASES
NOISE
OXIDES
OXYGEN COMPOUNDS
RADIAL VELOCITY
SPATIAL DISTRIBUTION
VELOCITY