CO survey of the dark nebulae in Perseus, Taurus, and Auriga

Journal Article · Sun Mar 01 00:00:00 EST 1987 · Astrophys. J., Suppl. Ser.; (United States)

DOI:https://doi.org/10.1086/191176· OSTI ID:6323745

Ungerechts, H; Thaddeus, P

A new SIS receiver with extremely low noise temperature, used on the Columbia 1.2-m telescope has permitted mapping CO rapidly with full sampling. Results are presented of a survey for which the angular resolution of the telescope was reduced to 0.5 deg, allowing the observations for the complete region of 750 square degrees to be finished within four months, while retaining sufficient resolution to see significant substructure. Most positions with emission are in the Taurus-Auriga dark nebulae, a cloud associated with IC 348 and NGC 1333, and a cloud associated with the California nebula (NGC 1499) and NGC 1579, which overlaps the northern Taurus-Auriga nebulae but is separated from them in velocity. Also seen were several small clouds at Galactic latitude -25 deg to -35 deg southwest of the Taurus clouds, and the L1558 and L1551 clouds in the south. 89 references.

• Research Organization: Columbia Univ., NY
• OSTI ID: 6323745
• Journal Information: Astrophys. J., Suppl. Ser.; (United States), Vol. 63
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
NEBULAE
RADIOWAVE RADIATION
CARBON MONOXIDE
COSMIC GASES
COSMIC RADIO SOURCES
MAPS
MASS DISTRIBUTION
MOLECULES
RADIO TELESCOPES
ANTENNAS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DISTRIBUTION
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUIDS
GASES
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
RADIO EQUIPMENT
SPATIAL DISTRIBUTION
TELESCOPES
640105* - Astrophysics & Cosmology- Galaxies