NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-23 T23:35:33 PDT
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For refcode 1987ApJ...316..145S:
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NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
1987ApJ...316..145S IRAS observations of starburst and nonactive spiral galaxies Kazuhiro Sekiguchi Abstract. Far-infrared properties of starburst, Seyfert II, and nonactive spiral galaxies are analyzed using IRAS observations at 25, 60, and 100 microns. Both starburst galaxies and nonactive spirals concentrate in a small area in IR color-color diagrams. These observed colors can be interpreted in terms of a cool (about 30 K) disk component plus a warm (about 80-90 K) component. The total IR luminosities of the starburst galaxies range from 10 to the 10th to 10 to the 12th solar luminosities, while the upper limit of nonactive spiral galaxies is about 10 the 11th solar luminosities. The IR color of the starburst galaxies is that of a normal spiral galaxy plus a larger warm component contribution. The 60 micron flux is 10-20 percent larger than in the nonactive spirals of this sample. The fraction of 60-micron emission attributable to the warm component can be used as an indicator for the star-formation activity in galaxies. Key words: FAR INFRARED RADIATION, GALACTIC RADIATION, SATELLITE OBSERVATION, SPIRAL GALAXIES, STARBURST GALAXIES, STELLAR EVOLUTION, COLOR-COLOR DIAGRAM, INFRARED ASTRONOMY SATELLITE, LUMINOUS INTENSITY, SEYFERT GALAXIES, SPACEBORNE ASTRONOMY, SPECTRUM ANALYSIS
Retrieve 63 NED objects in this reference.
Please click here for ADS abstract

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