Results 91 to 100 of about 146,569 (285)

The SL2S Galaxy-scale Lens Sample. V. Dark Matter Halos and Stellar IMF of Massive Early-type Galaxies out to Redshift 0.8

, 2014
We investigate the cosmic evolution of the internal structure of massive early-type galaxies over half of the age of the Universe. We perform a joint lensing and stellar dynamics analysis of a sample of 81 strong lenses from the SL2S and SLACS surveys ...
Auger, Matthew W., Gavazzi, Raphael, Marshall, Philip J., Nipoti, Carlo, Sonnenfeld, Alessandro, Suyu, Sherry H., Treu, Tommaso   +6 more
core   +3 more sources

The effects of the IMF on the chemical evolution of elliptical galaxies

, 2017
14 pages, 6 figures, accepted for publication in ...
De Masi, Carlo Maria, Matteucci, Francesca, Vincenzo, Fiorenzo   +2 more
openaire   +2 more sources

Using DSGE and Machine Learning to Forecast Public Debt for France

Journal of Forecasting, EarlyView.
ABSTRACT Forecasting public debt is essential for effective policymaking and economic stability, yet traditional approaches face challenges due to data scarcity. While machine learning (ML) has demonstrated success in financial forecasting, its application to macroeconomic forecasting remains underexplored, hindered by short historical time series and ...
Emmanouil Sofianos, Thierry Betti, Theophilos Papadimitriou, Amélie Barbier‐Gauchard, Periklis Gogas   +4 more
wiley   +1 more source

Mass-loss and expansion of ultra compact dwarf galaxies through gas expulsion and stellar evolution for top-heavy stellar initial mass functions

, 2010
(abridged) The dynamical V-band mass-to-light ratios of ultra compact dwarf galaxies (UCDs) are higher than predicted by simple stellar population models with the canonical stellar initial mass function (IMF).
Adams, Barnes, Baugh, Baumgardt, Binney, Blumenthal, Boily, Bonnell, Bonnell, Carroll, Casares, Chary, Chevalier, Clark, D'Antona, Dabringhausen, Dabringhausen, Decressin, Decressin, Drinkwater, Drinkwater, Elmegreen, Elmegreen, Elmegreen, Evstigneeva, Fellhauer, Fellhauer, Fellhauer, Fellhauer, Fellhauer, Figer, Figer, Figer, Forbes, Goerdt, Goodwin, Goodwin, Hartmann, Haşegan, Heggie, Hilker, Hilker, J. Dabringhausen, Jordán, King, Koester, Kormendy, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kumar, Lada, Larson, Lyne, M. Fellhauer, Maness, Maraston, Massey, McLaughlin, Melioli, Metz, Mieske, Mieske, Mieske, Mieske, Mieske, Mieske, Murray, Murray, Nagashima, Oey, P. Kroupa, Phillipps, Plummer, Prantzos, Recchi, Schaller, Tenorio-Tagle, Thorsett, Van Dokkum, Weidner, Woosley, Wuchterl   +85 more
core   +1 more source

Effect of Austerity Measures on Infant Mortality: Evidence From Greece

Health Economics, EarlyView.
ABSTRACT Governments frequently adopt austerity policies when facing economic crises, yet their long‐term consequences for population health remain incompletely understood. This paper examines the impact of large‐scale fiscal austerity on infant mortality by exploiting the Troika‐led economic adjustment program implemented in Greece beginning in 2010 ...
Robert J. Kolesar, Rok Spruk
wiley   +1 more source

Evolution of close binaries after the burst of starformation for different IMFs

, 1997
12 pages, 4 PostScript figures, to be presented as a poster at the conference "Cosmology: from COBE to galaxy formation", 1-7 December 1997 ...
Popov, S. B., Lipunov, V. M., Prokhorov, M. E., Postnov, K. A.   +3 more
openaire   +2 more sources

Systemic and Local Adiposity in the Bone Marrow Microenvironment Associated With Improved Prognosis in Hodgkin Lymphoma: Imaging and Molecular Analysis

International Journal of Cancer, EarlyView.
Schematic overview of systemic and bone marrow‐specific adiposity in Hodgkin Lymphoma (HL). Body Mass Index was associated with bone marrow (BM) involvement, relapse, and mortality (1). In contrast, increased yellow marrow density was associated with poorer prognosis (2).
Andreia Matos, William P. Cawthorn, Joana Marinho‐Dias, Sofia Ramalheira, Susana Roncon, Dulcineia Pereira, Teresa Ribeiro, Carla Rodrigues, Mário Mariz, Ana Miranda, Helena Brízido, Manuel Bicho, Pedro Medeiros, Ana Carneiro, Fernanda Trigo, Pingzhao Hu, Flávia Pereira, Hugo Duarte, Calum D. Gray, Tom Macgillivray, Alan G. Ramsay, Maria J. Oliveira, Ricardo Ribeiro   +22 more
wiley   +1 more source

First Detection of CO Isotopologues in a High-redshift Main-sequence Galaxy: Evidence of a Top-heavy Stellar Initial Mass Function

The Astrophysical Journal
Recent observations and theories have presented a strong challenge to the universality of the stellar initial mass function (IMF) in extreme environments. A notable example has been found for starburst conditions, where evidence favors a top-heavy IMF, i.
Ziyi Guo, Zhi-Yu Zhang, Zhiqiang Yan, Eda Gjergo, Allison W. S. Man, R. J. Ivison, Xiaoting Fu, Yong Shi   +7 more
doaj   +1 more source

The Magellanic Bridge cluster NGC 796: Deep optical AO imaging reveals the stellar content and initial mass function of a massive open cluster

, 2018
NGC 796 is a massive young cluster located 59 kpc from us in the diffuse intergalactic medium of the 1/5-1/10 $Z_{\odot}$ Magellanic Bridge, allowing to probe variations in star formation and stellar evolution processes as a function of metallicity in a ...
Carraro, G., Evans, C. J., Kalari, V. M., Rubio, M.   +3 more
core   +1 more source

What Role Do Finance Ministers Play in Political Business Cycles? Evidence‐Based on a New African Dataset

International Journal of Finance &Economics, EarlyView.
ABSTRACT This study investigates how the personal characteristics of finance ministers influence political budget cycles in Africa. Using a new dataset covering 300 finance ministers across 23 countries from 1980 to 2020, we find that political budget cycles primarily take the form of increased government consumption during election years.
Christine Olivia Strong
wiley   +1 more source