The interstellar medium of the hot-spot galaxy NGC 2903
Journal Article
·
· Astrophysical Journal; (United States)
- Boston Univ., MA (USA) Max-Planck-Institut fuer Physik und Astrophysik, Garching (West Germany) Max-Planck Institut fuer Physik und Astrophysik, Garching (West Germany) Harvard College Observatory, Cambridge, MA (USA)
The interstellar medium of a hot-spot galaxy NGC 2903 was studied by mapping NGC 2903 in 21-cm radio continuum, H-alpha, and CO J = 2-1 and 1-0 emissions. The dust distribution was studied using 50-micron and 100-micron IRAS Chopped Photometric Channel images of NGC 2903. The CO data were found to be consistent with emission from giant molecular clouds with properties typical of Milky Way clouds (i.e., with large optical depths, excitation temperatures near 10 K, and sizes about 100 pc). The global FIR/CO luminosity ratio is typical of that for normal spirals. The local FIR/CO ratio varies considerably. 77 refs.
- OSTI ID:
- 5225473
- Journal Information:
- Astrophysical Journal; (United States), Vol. 375; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
RADIO GALAXIES
INTERSTELLAR SPACE
BALMER LINES
CARBON MONOXIDE
COSMIC DUST
COSMIC GASES
INFRARED RADIATION
LUMINOSITY
PHOTOMETRY
SPATIAL DISTRIBUTION
SPIRAL CONFIGURATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONFIGURATION
COSMIC RADIO SOURCES
DISTRIBUTION
DUSTS
ELECTROMAGNETIC RADIATION
FLUIDS
GALAXIES
GASES
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SPACE
640105* - Astrophysics & Cosmology- Galaxies
GENERAL PHYSICS
RADIO GALAXIES
INTERSTELLAR SPACE
BALMER LINES
CARBON MONOXIDE
COSMIC DUST
COSMIC GASES
INFRARED RADIATION
LUMINOSITY
PHOTOMETRY
SPATIAL DISTRIBUTION
SPIRAL CONFIGURATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONFIGURATION
COSMIC RADIO SOURCES
DISTRIBUTION
DUSTS
ELECTROMAGNETIC RADIATION
FLUIDS
GALAXIES
GASES
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SPACE
640105* - Astrophysics & Cosmology- Galaxies