Results 11 to 20 of about 75,563 (322)

The Chemical Evolution of the Milky Way [PDF]

, 1999
The field of chemical evolution modeling of the Galaxy is experiencing in the last years a phase of high activity and important achievements. There are, however, several open questions which still need to be answered. In this review I summarize what have
A Pasquali, A Renzini, AA Penzias, AI Boothroyd, B Barbuy, B Edvardsson, C Chiappini, CG Lacey, E Anders, F Matteucci, Forestini, JM Scalo, LB van den Hoek, M Tosi, M Tosi, M Tosi, M Tosi, N Prantzos, P Kroupa, PA Shaver, R Wielen, Rocha, S Boissier, S Smartt, SE Woosley, T.C. Beers, WJ Maciel, WJ Maciel   +27 more
core   +3 more sources

The Three-phase Evolution of the Milky Way

The Astrophysical Journal
We illustrate the formation and evolution of the Milky Way over cosmic time, utilizing a sample of 10 million red giant stars with full chemodynamical information, including metallicities and α -abundances from low-resolution Gaia XP spectra.
Vedant Chandra, Vadim A. Semenov, Hans-Walter Rix, Charlie Conroy, Ana Bonaca, Rohan P. Naidu, René Andrae, Jiadong Li, Lars Hernquist   +8 more
doaj   +3 more sources

The chemical evolution of Barium and Europium in the Milky Way [PDF]

Astronomy & Astrophysics, 2005
We compute the evolution of the abundances of barium and europium in the Milky Way and we compare our results with the observed abundances from the recent UVES Large Program "First Stars".
Cayrel, R., Cescutti, G., Francois, P., Matteucci, F., Spite, M.   +4 more
core   +12 more sources

EVOLUTION OF LITHIUM IN THE MILKY WAY [PDF]

, 2001
2 pages, latex, 1 figure.
D. Romano, F. Matteuccí, P. Ventura, F. D’Antona   +3 more
openalex   +5 more sources

Formation and Evolution of the Milky Way [PDF]

Symposium - International Astronomical Union, 1998
To paint with broad brush strokes, the spectrum of Galactic formation models has as extrema what may be termed the “fast and smooth” and the “slow and lumpy” scenarios. Appropriate or not, to ascribe as champions of these views the works of, respectively, Eggen et al.
Steven R. Majewski
openalex   +3 more sources

Secular evolution of Milky Way-type galaxies

, 1991
The internal evolution of disk galaxies like the Milky Way are driven by non-axisymmetries (bars) and the implied angular momentum transfer of the matter; baryons are essentially driven inwards to build a more concentrated disk.
Daisuke Nagashima, 永嶋 大典
core   +4 more sources

The Milky Way and the evolution of disk galaxies

, 2002
We present a phenomenological approach to the study of disk galaxy evolution, based on i) a detailed modelling of the Milky Way (used as a prototype disk galaxy) and ii) an extension of the model to other disks through some simple scaling relations, obtained in the framework of Cold Dark matter models.
Nikos Prantzos
openalex   +4 more sources

Abundance gradients and their evolution in the Milky Way disk

, 2000
18 pages, 10 figures, 1 Table, Astronomy and Astrophysics, accepted for ...
Jinliang Hou, Nikos Prantzos, S. Boissier   +2 more
openalex   +4 more sources

On the early chemical evolution of the Milky Way

, 2006
A few topics concerning the early chemical evolution of the Milky Way are critically discussed. In particular, it is argued that: 1) Observed abundance patterns of extremely metal poor stars (of Pop. II) do not constrain the mass range of the first generation (Pop.
Nikos Prantzos
openalex   +4 more sources

Chemical evolution of fluorine in the Milky Way

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT Fluorine has many different potential sites and channels of production, making narrowing down a dominant site of fluorine production particularly challenging. In this work, we investigate which sources are the dominant contributors to the galactic fluorine by comparing chemical evolution models to observations of fluorine ...
Kate A Womack, Fiorenzo Vincenzo, Brad K Gibson, Benoit Côté, Marco Pignatari, Hannah E Brinkman, Paolo Ventura, Amanda Karakas   +7 more
openaire   +3 more sources