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The Dawes Review 8: Measuring the Stellar Initial Mass Function [PDF]

open access: yesPublications Astronomical Society of Australia, 2018
The birth of stars and the formation of galaxies are cornerstones of modern astrophysics. While much is known about how galaxies globally and their stars individually form and evolve, one fundamental property that affects both remains elusive.
Hopkins, A. M.
core   +2 more sources

The Initial Mass Function in Starbursts [PDF]

open access: yes, 2005
The history of the initial mass function (IMF) in starburst regions is reviewed. The IMFs are no longer believed to be top-heavy, although some super star clusters, whether in starburst regions or not, could be. General observations of the IMF are discussed to put the starburst results in perspective.
openaire   +1 more source

Early Enrichment Population Theory at High Redshift

open access: yesThe Astrophysical Journal
An early enrichment population (EEP) has been theorized to produce the observed intracluster medium (ICM) metallicity of galaxy clusters. This population likely existed at high redshifts ( z  ∼ 10), relics of which we posit exist today as dwarf galaxies.
Anne E. Blackwell, Joel N. Bregman
doaj   +1 more source

The Stellar Initial Mass Function of Early Dark Matter–free Gas Objects

open access: yesThe Astrophysical Journal Letters
Among the remarkable strides made by JWST is the discovery of the earliest star clusters found to date. These have been proposed as early progenitors of globular clusters, which are known to come from the early stages of star formation in the Universe ...
William Lake   +8 more
doaj   +1 more source

On the Mass Distribution of Stellar-Mass Black Holes

open access: yesOpen Astronomy, 2014
The observational stellar-mass black hole mass distribution exhibits a maximum at about 8 M⊙. It can be explained via the details of the massive star evolution, supernova explosions, or consequent black hole evolution.
Malkov O. Yu.
doaj   +1 more source

Some processes influencing the stellar initial mass function [PDF]

open access: yesSymposium - International Astronomical Union, 1991
Current evidence suggests that the stellar initial mass function has the same basic form everywhere, and that its fundamental features are (1) the existence of a characteristic stellar mass of order one solar mass, and (2) the existence of an apparently universal power-law form for the mass spectrum of the more massive stars. The characteristic stellar
openaire   +1 more source

Impact of the initial disk mass function on the disk fraction

open access: yes, 2015
The disk fraction, the percentage of stars with disks in a young cluster, is widely used to investigate the lifetime of the protoplanetary disk, which can impose an important constraint on the planet formation mechanism.
Ohsawa, Ryou   +2 more
core   +1 more source

Measuring the stellar initial mass function

open access: yes, 2020
The birth of stars and the formation of galaxies are cornerstones of modern astrophysics. While much is known about how galaxies globally and their stars individually form and evolve, one fundamental property that affects both remains elusive. This is problematic because this key property, the stellar initial mass function (IMF), is a key tracer of the
openaire   +1 more source

Planet Mass Function around M Stars at 1–10 au: A Plethora of Sub-Earth Mass Objects

open access: yesThe Astrophysical Journal
Small planets (≲1 M _⊕ ) at intermediate orbital distances (∼1 au) represent an uncharted territory in exoplanetary science. The upcoming microlensing survey by the Nancy Grace Roman Space Telescope will be sensitive to objects as light as Ganymede and ...
Yayaati Chachan, Eve J. Lee
doaj   +1 more source

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