Initial mass function for early-type stars in starburst galaxies

Journal Article · Tue Sep 01 00:00:00 EDT 1987 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/114500· OSTI ID:5619179

Sekiguchi, K; Anderson, K S

The IMF slope of early-type stars in starburst galaxies is investigated using IUE observations and a technique that utilizes mass-linewidth relations for early-type stars. Fourteen low-resolution IUE spectra of eight starburst galaxies and three H II region galaxies are used to obtain line-strength ratios Si IV(1400 A)/C IV(1550 A). These are compared to model line ratios, and indicate that the average IMF slope for OB stars in these intense star-formation regions is appreciably flatter than that of the solar neighborhood. 46 references.

• Research Organization: New Mexico State Univ., Las Cruces
• OSTI ID: 5619179
• Journal Information: Astron. J.; (United States), Vol. 94
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXIES
STAR EVOLUTION
STARS
MASS
GALACTIC EVOLUTION
H2 REGIONS
ULTRAVIOLET SPECTRA
COSMIC RADIO SOURCES
SPECTRA
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources
640105 - Astrophysics & Cosmology- Galaxies