Results 1 to 10 of about 146,005 (176)

IMF AND EVOLUTION OF CLOSE BINARIES AFTER STARFORMATION BURSTS

Odessa Astronomical Publications, 2017
This paper is a continuation and development of our previous articles (Popov et al., 1997, 1998). We use Scenario "Machine" (Lipunov et al., 1996b) - the population synthesis simulator (for single binary systems calculations the program is available in ...
S. B. Popov, M. E. Prokhorov, V. M. Lipunov   +2 more
doaj   +3 more sources

The effects of a Variable IMF on the Chemical Evolution of the Galaxy [PDF]

, 2000
In this work we explore the effects of adopting an initial mass function (IMF) variable in time on the chemical evolution of the Galaxy. In order to do that we adopt a chemical evolution model which assumes two main infall episodes for the formation of ...
A Martinelli, B Burton, BEJ Pagel, C Chiappini, C Chiappini, C Chiosi, C Pardi, F Matteucci, F Matteucci, HJ Rocha- Pinto, JM Scalo, K Fuhrmann, L Portinari, N Prantzos, N Roche, OJ Eggen, P Padoan, RB Larson, RX Chang, S Scully, T Beers, W Maciel   +21 more
core   +4 more sources

What went wrong? The evolution of the IMF 1941-1961

PSL Quarterly Review, 2013
Despite its promising start in 1946-47, the new IMF soon ceased to fulfil its expected role for almost nine years. An exploration is provided for the latter in the wider context of international economic cooperation. It was not until 1961 that the Fund's
L.S. PRESSNELL
doaj   +3 more sources

Effects of the integrated galactic IMF on the chemical evolution of the solar neighbourhood [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
The initial mass function determines the fraction of stars of different intial mass born per stellar generation. In this paper, we test the effects of the integrated galactic initial mass function (IGIMF) on the chemical evolution of the solar ...
Bensby, Boily, Boily, Boissier, Calura, Calura, Cappellaro, Cayrel, Cescutti, Chabrier, Chiappini, Chiappini, Chiappini, Chiappini, Colavitti, Dame, Elmegreen, F. Calura, F. Matteucci, François, Gilmore, Gratton, Grevesse, Holmberg, Israelian, Iwamoto, Jorgensen, Kennicutt, Kennicutt, Kroupa, Kroupa, Kulkarni, Lada, Lada, Larsen, Larson, Martin, Massey, Matteucci, Matteucci, Matteucci, Matteucci, Matteucci, Matteucci, Miller, Méra, Olling, P. Kroupa, Pflamm-Altenburg, Pflamm-Altenburg, Rana, Recchi, Romano, Romano, Rŭžička, S. Recchi, Salpeter, Samland, Scalo, Sommer-Larsen, Talbot, Theis, Tinsley, Van den Hoeck, Weber, Weidner, Weidner, Weidner, Whelan, Zhang   +69 more
core   +5 more sources

IMF Sovereign Debt Restructuring Framework: Origin, Evolution and Latest Updates of its Main Components [PDF]

Revista Direito GV, 2020
The first introductory manual of the IMF framework for Sovereign Debt Restructurings (SDRs) is introduced in this article. SDR processes, in which billions of dollars are negotiated, constitute key elements for the healthy recovery of an over-indebted ...
Alejandro Gabriel Manzo
doaj   +5 more sources

The «Group of Twenty», IMF and EU and Reforming of Global Governance

Vestnik MGIMO-Universiteta, 2014
This article is devoted to the process of reforming the global financial system and world economic organizations since the foundation of the International Monetary Fund at the Bretton Woods Conference in 1944 to present time.
Evgeniy J. Il'in
doaj   +5 more sources

Stellar Initial Mass Function (IMF) Probed with Supernova Rates and Neutrino Background: Cosmic-average IMF Slope Is ≃2–3 Similar to the Salpeter IMF

The Astrophysical Journal, 2023
The stellar initial mass function (IMF) is expressed by ϕ ( m ) ∝ m ^− ^α with the slope α , and known as a poorly constrained but very important function in studies of star and galaxy formation. There are no sensible observational constraints on the IMF
Shohei Aoyama, Masami Ouchi, Yuichi Harikane   +2 more
doaj   +1 more source

Dynamical evolution of star clusters with top-heavy IMF [PDF]

Proceedings of the International Astronomical Union, 2019
AbstractSeveral observational and theoretical studies suggest that the initial mass function (IMF) slope for massive stars in globular clusters (GCs) depends on the initial cloud density and metallicity, such that the IMF becomes increasingly top-heavy with decreasing metallicity and increasing the gas density of the forming object.
Hosein Haghi, Ghasem Safaei, Akram H. Zonoozi, Pavel Kroupa   +3 more
openaire   +2 more sources

The Stellar IMF of Galactic Clusters and Its Evolution [PDF]

, 2007
We show that one can obtain a good fit to the measured main sequence mass function (MF) of a large sample of Galactic clusters (young and old) with a tapered Salpeter power law distribution function with an exponential truncation. The average value of the power law index is very close to Salpeter (~2.3), whereas the characteristic mass is in the range ...
De Marchi, Guido, Paresce, Francesco, Zwart, Simon Portegies   +2 more
openaire   +2 more sources

Chemical evolution of elliptical galaxies with a variable IMF [PDF]

Astronomy & Astrophysics, 2019
Growing evidence in recent years suggests a systematic variation of the stellar initial mass function (IMF), being top-heavy for starburst galaxies and possibly bottom-heavy for massive ellipticals. Galaxy chemical evolution simulations adopting an invariant canonical IMF face difficulty in simultaneously reproducing the metallicity and α-enhancement ...
Zhiqiang Yan, Tereza Jerabkova, Pavel Kroupa, Alejandro Vazdekis   +3 more
openaire   +2 more sources