The initial mass function and stellar birthrate in the solar neighborhood

TLDR

The study investigates the initial mass function (IMF) and stellar birthrate history in the solar neighborhood, assuming a time‑independent IMF over the Galactic disk’s lifetime. It examines observational quantities and uncertainties, deriving IMFs for various birthrate histories that satisfy the continuity constraint. The authors conclude that the evidence supports the IMF being time‑independent and a continuous function of mass. Published in ApJS, Nov 1979 (DOI: 10.1086/190629).

Abstract

view Abstract Citations (1888) References (167) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Initial Mass Function and Stellar Birthrate in the Solar Neighborhood Miller, G. E. ; Scalo, J. M. Abstract The paper examines the initial mass function (IMF) and time history of the stellar birthrate in the solar neighborhood under the assumption of a time-independent IMF over the lifetime of the galactic disk. All relevant observational quantities and the associated uncertainties are discussed. Also discussed are IMFs derived for a range of birthrate histories consistent with the continuity constraint. Finally, the study summarizes observational and theoretical arguments concerning the basic assumptions that the IMF is time independent and a continuous function of mass. Publication: The Astrophysical Journal Supplement Series Pub Date: November 1979 DOI: 10.1086/190629 Bibcode: 1979ApJS...41..513M Keywords: Cosmology; Solar System; Stellar Evolution; Stellar Mass; Gas Density; Main Sequence Stars; Milky Way Galaxy; Nuclear Fusion; Planetary Nebulae; Stellar Luminosity; Stellar Mass Accretion; Stellar Mass Ejection; Supernovae; White Dwarf Stars; Astrophysics full text sources ADS |