Results 51 to 60 of about 1,635,352 (355)
A Census of the 32 Ori Association with Gaia
The Astronomical Journal, 2022 I have used high-precision photometry and astrometry from the third data release of Gaia (DR3) to identify candidate members of the 32 Ori association.
K. L. Luhman
doaj +1 more source
Is the stellar initial mass function universal? [PDF]
Astronomy & Geophysics, 2016 Ignacio Ferreras, Francesco La Barbera and Alexandre Vazdekis take a close look at one of the key ingredients in modelling star formation.
Ferreras, I, La Barbera, F, Vazdekis, A
openaire +3 more sources
A Census of the TW Hya Association with Gaia
The Astronomical Journal, 2023 I have used high-precision photometry and astrometry from the third data release of Gaia to perform a survey for members of the TW Hya association (TWA).
K. L. Luhman
doaj +1 more source
On the function describing the stellar initial mass function [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 We propose a functional form for the IMF, the L_3 IMF, which is a natural heavy-tailed approximation to the log-normal distribution. It is composed of a low-mass power law and a high mass power-law which are smoothly joined together. Three parameters are needed to achieve this.
openaire +2 more sources
Fragmentation of young massive clusters in binary components: an application of Griddy Gibbs Sampler
Frontiers in Astronomy and Space SciencesThe study of the process of hierarchical fragmentation of molecular clouds within Young Massive Clusters required modeling the Initial Mass Function by considering both binary and single-star components.
Abisa Sinha Adhikary, Ankita Das
doaj +1 more source
A nonextensive insight into the stellar initial mass function [PDF]
EPL (Europhysics Letters), 2019 the present paper, we propose that the stellar initial mass distributions as known as IMF are best fitted by $q$-Weibulls that emerge within nonextensive statistical mechanics. As a result, we show that the Salpeter's slope of $\sim$2.35 is replaced when a $q$-Weibull distribution is used.
M. M. F. Nepomuceno +3 more
openaire +4 more sources
The cosmic microwave background and the stellar initial mass function [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We argue that an increased temperature in star-forming clouds alters the stellar initial mass function to be more bottom-light than in the Milky Way. At redshifts $z \gtrsim 6$, heating from the cosmic microwave background radiation produces this effect ...
A. Jermyn, C. Steinhardt, C. Tout
semanticscholar +1 more source
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 +1 more source
A Census of the Stellar Populations in the Sco-Cen Complex
The Astronomical Journal, 2021 I have used high-precision photometry and astrometry from the early installment of the third data release of Gaia (EDR3) to perform a survey for members of the stellar populations within the Sco-Cen complex, which consist of Upper Sco, UCL/LCC, the V1062
K. L. Luhman
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 +5 more sources