Results 1 to 10 of about 1,113,642 (191)
The stellar initial mass function [PDF]
Proceedings of the International Astronomical Union, 2006 Abstract The IMF UNIVERSALITY HYPOTHESIS cannot be discarded despite the existence of the CLUSTER IMF THEOREM. This means that the currently existing star-formation theory fails to describe the stellar outcome. The IGIMF THEOREM, however, predicts a variation of galaxy-wide IMFs in dependence of the galaxy's star-formation rate even if the IMF ...
Pavel Kroupa
openalex +2 more sources
The Initial Mass Function and Other Stellar Properties Across the Core of the Hydra I Cluster [PDF]
The 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 +2 more sources
Faint Stars in a Faint Galaxy. II. The Low-mass Stellar Initial Mass Function of the Boötes I Ultrafaint Dwarf Spheroidal Galaxy [PDF]
The Astrophysical Journal, 2022 This paper presents improved constraints on the low-mass stellar initial mass function (IMF) of the Boötes I (Boo I) ultrafaint dwarf galaxy, based on our analysis of recent deep imaging from the Hubble Space Telescope.
Carrie Filion +3 more
doaj +2 more sources
On the variation of the initial mass function [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 (shortened) In this contribution an average or Galactic-field IMF is defined, stressing that there is evidence for a change in the power-law index at only two masses: near 0.5 Msun and 0.08 Msun. Using this supposed universal IMF, the uncertainty inherent to any observational estimate of the IMF is investigated, by studying the scatter introduced by ...
Pavel Kroupa
openalex +4 more sources
The High-Mass Stellar Initial Mass Function in M31 Clusters [PDF]
The Astrophysical Journal, 2015 11 pages, 7 Figures, submitted to ApJ.
Daniel R. Weisz +18 more
openalex +4 more sources
Towards an initial mass function for giant planets [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 10 pages, 9 figures; submitted to ...
Daniel Carrera +2 more
openalex +4 more sources
Constraining the Initial Mass Function via Stellar Transients
UniverseThe stellar initial mass function (IMF) represents a fundamental quantity in astrophysics and cosmology describing the mass distribution of stars from low mass all the way up to massive and very massive stars. It is intimately linked to a wide variety of
Francesco Gabrielli +6 more
doaj +3 more sources
Variations in integrated galactic initial mass functions due to sampling method and cluster mass function [PDF]
Astronomy and Astrophysics, 2010 [abridged] Stars are thought to be formed predominantly in clusters. The clusters are formed following a cluster initial mass function (CMF) similar to the stellar initial mass function (IMF). Both the IMF and the CMF favour low-mass objects. The numerous low-mass clusters will lack high mass stars.
M. R. Haas, P. Anders
openalex +5 more sources
The 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
Initial mass function of intermediate-mass black hole seeds [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 MNRAS, in press.
Ferrara, A. +3 more
openaire +4 more sources