NDLI: Star formation rates as a function of galaxy mass

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Star formation rates as a function of galaxy mass

Content Provider	NASA Technical Reports Server (NTRS)
Author	Romanishin, W.
Copyright Year	1987
Description	Correlations were found between the colors and absolute magnitudes of spiral galaxies. Using optical and/or near IR (1.6 micron) colors, it was found that lower luminosity spirals are systematically bluer than higher luminosity spirals. Infrared Astronomy Satellite (IRAS) far IR luminosities were used to investigate the suggestion that one prime cause of these color-absolute magnitude correlations is a systematic variation with galaxy mass of the current star formation rate (SFR) per unit mass. To the extent that the IRAS fluxes actually measure disk SFR, no correlation of SFR/unit mass and galaxy mass was found. Other possible explanations of the color-absolute magnitude correlations are discussed, as well as caveats on the use of IRAS fluxes as a means of comparing SFRs in galaxies of differing mass.
File Size	226359
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870014875
Archival Resource Key	ark:/13960/t58d4sw5w
Language	English
Publisher Date	1987-05-01
Access Restriction	Open
Subject Keyword	Astrophysics Mass Galactic Structure Astronomical Catalogs Star Formation Emission Spectra Luminosity Infrared Astronomy Satellite Spiral Galaxies Color-magnitude Diagram Star Formation Rate Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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