Systematic properties of CO emission from galaxies. II. Weighted correlations
The dependence of molecular gas emission on various global galaxy properties is tested by examining a series of correlations. CO luminosities of entire galaxies are correlated with their H I content, blue luminosity, disk area, far-infrared luminosity, Hubble type, Elmegreen arm type, DDO luminosity class, total B-V color, disk B-V color, and H-alpha emission. A weighted correlation test is derived and applied to correct for the strong Malmquist bias in the available CO observations of galaxies. The relative strengths of the correlations indicate that molecular emission has a strong dependence on galaxy scale, a weak dependence on galaxy form, and is closely linked to tracers of star forming regions. 97 references.
- Research Organization:
- Rensselaer Polytechnic Institute, Troy, NY (USA); NASA, Goddard Space Flight Center, Greenbelt, MD (USA)
- OSTI ID:
- 6538942
- Journal Information:
- Astrophys. J., Suppl. Ser.; (United States), Vol. 68
- Country of Publication:
- United States
- Language:
- English
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GENERAL PHYSICS
GALAXIES
COSMIC GASES
BALMER LINES
CARBON MONOXIDE
CORRELATIONS
FAR INFRARED RADIATION
H1 REGIONS
INTERSTELLAR SPACE
LUMINOSITY
MOLECULES
STAR EVOLUTION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FLUIDS
GASES
INFRARED RADIATION
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SPACE
640105* - Astrophysics & Cosmology- Galaxies