Results 1 to 10 of about 1,148,259 (165)

Clump lifetimes and the initial mass function [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2007
7 pages, 3 figures, accepted to ...
Paul C Clark   +2 more
exaly   +3 more sources

The fragmentation properties of massive star-forming regions in 30Dor-10 at 2000 au resolution [PDF]

open access: yesNature Communications
The fragmentation properties of parsec- scale clumps play a fundamental role in shaping the dense gas condensations known as cores, the immediate progenitor of stars.
Alessio Traficante   +11 more
doaj   +2 more sources

Substellar initial mass function of Trumpler 14

open access: yesAstronomy & Astrophysics
Context. Young, massive stellar clusters offer a prime setting to explore brown dwarf (BD) formation under high densities and intense UV radiation. Trumpler 14 (Tr 14), a ∼1 Myr old cluster located at a distance of 2.4 kpc that is particularly rich in O ...
Rom T.   +5 more
doaj   +3 more sources

On the mass-to-light ratio and the initial mass function in disc galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
A low mass-to-light ratio for the stellar component of spiral galaxies (M/L<1 in the I-band) is advocated by various dynamical arguments and by recent cosmological simulations of the formation of these systems. We discuss this possibility by means of chemo-photometric models for galactic discs, adopting different Initial Mass Functions. We show that
L Portinari, J Sommer-Larsen
exaly   +3 more sources

Constraining the Initial Mass Function in the Epoch of Reionization from Astrophysical and Cosmological Data

open access: yesUniverse
We aim to constrain the stellar initial mass function (IMF) during the epoch of reionization. To this purpose, we build up a semi-empirical model for the reionization history of the Universe based on various ingredients: the latest determination of the ...
Andrea Lapi   +8 more
doaj   +3 more sources

Probing the Milky Way Stellar and Brown Dwarf Initial Mass Function with Modern Microlensing Observations

open access: yesThe Astrophysical Journal Letters, 2023
We use recent microlensing observations toward the central bulge of the Galaxy to probe the overall stellar plus brown dwarf initial mass function (IMF) in these regions well within the brown dwarf domain. We find that the IMF is consistent with the same
Gilles Chabrier, Romain Lenoble
doaj   +1 more source

The Initial Mass Function and Other Stellar Properties Across the Core of the Hydra I Cluster

open access: yesThe Astrophysical Journal, 2023
The Hydra I cluster offers an excellent opportunity to study and compare the relic old stellar populations in the core of its two brightest galaxies. In addition, the differing kinematics of the two galaxies allows a test of the local validity of general
Ilaria Lonoce   +2 more
doaj   +1 more source

A Discontinuity in the Low‐Mass Initial Mass Function [PDF]

open access: yesThe Astrophysical Journal, 2007
The origin of brown dwarfs (BDs) is still an unsolved mystery. While the standard model describes the formation of BDs and stars in a similar way recent data on the multiplicity properties of stars and BDs show them to have different binary distribution functions.
Thies, Ingo, Kroupa, Pavel
openaire   +2 more sources

Extragalactic constraints on the initial mass function [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2008
6 pages, 5 figures, accepted to ...
Wilkins, Stephen M   +3 more
openaire   +3 more sources

Mapping the core mass function to the initial mass function [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
13 pages, 15 figures, accepted by MNRAS on 17 April ...
Guszejnov, Dávid, Hopkins, Philip F.
openaire   +3 more sources

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