Results 21 to 30 of about 76,255 (323)

EVOLUTION OF LITHIUM IN THE MILKY WAY [PDF]

, 2001
2 pages, latex, 1 figure.
Romano, Donatella, Matteucci, Francesca, Ventura, Paolo, D'Antona, Francesca   +3 more
openaire   +2 more sources

The chemical evolution of the Milky Way [PDF]

Proceedings of Frontier Research in Astrophysics – II — PoS(FRAPWS2016), 2017
10 pages, 6 figures, in Frontier Research in Astrophysics - II 23-28 May 2016 Mondello (Palermo ...
Matteucci, Francesca, Spitoni, Emanuele, Romano, Donatella, Rojas-Arriagada, Alvaro   +3 more
openaire   +2 more sources

Structure and Evolution of the Milky Way Galaxy [PDF]

International Astronomical Union Colloquium, 1989
AbstractThe combination of chemical abundance, kinematic, and age data for stars near the sun provides important information about the early evolution of the Galaxy. We review available data, with some new analysis, to show that the sum of all available information strongly suggests that the extreme population II subdwarf system formed during a period ...
G. Gilmore, Rosemary F. Ġ. Wyse
openalex   +2 more sources

The Rapid Onset of Stellar Bars in the Baryon-dominated Centers of Disk Galaxies

The Astrophysical Journal, 2023
Recent observations of high-redshift galactic disks ( z ≈ 1–3) show a strong negative trend in the dark-matter (DM) fraction f _DM with increasing baryon surface density.
Joss Bland-Hawthorn, Thor Tepper-Garcia, Oscar Agertz, Ken Freeman   +3 more
doaj   +1 more source

The Tilt of the Velocity Ellipsoid of Different Galactic Disk Populations

The Astrophysical Journal, 2023
The tilt of the velocity ellipsoid is a helpful tracer of the gravitational potential of the Milky Way. In this paper, we use nearly 140,000 red clump (RC) stars selected from LAMOST and Gaia to make a detailed analysis of the tilt of the velocity ...
Weixiang Sun, Han Shen, Xiaowei Liu
doaj   +1 more source

The Gaia-ESO Survey: the selection function of the Milky Way field stars [PDF]

, 2016
The Gaia-ESO Survey was designed to target all major Galactic components (i.e., bulge, thin and thick discs, halo and clusters), with the goal of constraining the chemical and dynamical evolution of the Milky Way.
Bensby, T., Bragaglia, A., Casey, A. R., Costado, M. T., Feltzing, S., Franciosini, E., Gilmore, G., Hourihane, A., Howes, L. M., Jofre, P., Koposov, S. E., Kordopatis, G., Korn, A. J., Lanzafame, A. C., Lardo, C., Lewis, J., Magrini, L., Monaco, L., Morbidelli, L., Pancino, E., Randich, S., Ruchti, G. R., Sacco, G. G., Sbordone, L., Smiljanic, R., Stonkute, E., Tautvaisiene, G., Worley, C. C., Zwitter, T.   +28 more
core   +4 more sources

The influence of nova nucleosynthesis on the chemical evolution of the Galaxy [PDF]

, 2000
We adopt up-to-date yields of 7Li, 13C, 15N from classical novae and use a well tested model for the chemical evolution of the Milky Way in order to predict the temporal evolution of these elemental species in the solar neighborhood.
A Renzini, C Chiappini, D Romano, F D’Antona, F D’Antona, F Matteucci, F Matteucci, GT Bath, J José, LB Hoek, M CenturiÓn, M Lemoine, M Valle Della, N Prantzos, O Stahl, P Crane, RD Gehrz, S Starrfield, SE Woosley, TL Wilson, WD Langer   +20 more
core   +2 more sources

The formation and early evolution of the Milky Way [PDF]

Symposium - International Astronomical Union, 1985
In broad outline, the traditional picture for the formation of the Milky Way can be summarized as follows. The proto-galaxy consisted of a slowly rotating cloud of metal-free gas that cooled by bremsstrahlung and recombination radiation. As the internal pressure of the gas decreased, it collapsed in stages with smaller dimensions, faster rotation ...
openaire   +1 more source

The Imprint of Clump Formation at High Redshift. II. The Chemistry of the Bulge

The Astrophysical Journal, 2023
In Paper I, we showed that clumps in high-redshift galaxies, having a high star formation rate density (Σ _SFR ), produce disks with two tracks in the [Fe/H]–[ α /Fe] chemical space, similar to that of the Milky Way’s (MW’s) thin+thick disks.
Victor P. Debattista, David J. Liddicott, Oscar A. Gonzalez, Leandro Beraldo e Silva, João A. S. Amarante, Ilin Lazar, Manuela Zoccali, Elena Valenti, Deanne B. Fisher, Tigran Khachaturyants, David L. Nidever, Thomas R. Quinn, Min Du, Susan Kassin   +13 more
doaj   +1 more source

Chemo-spectrophotometric evolution of spiral galaxies: I. The model and the Milky Way [PDF]

, 1999
The chemical and spectro-photometric evolution of spiral galaxies is investigated with detailed models, making use of up-to-date ingredients (like metallicity dependent stellar properties) and a prescription for the star formation rate (SFR) justified ...
Allard, Allen, Anders, Arimoto, Baraffe, Bazan, Bessell, Bethe, Bethe, Boesgaard, Bohlin, Boissier, Bruzual, Calzetti, Cappellaro, Cardelli, Carigi, Chamcham, Charbonnel, Charbonnel, Chiapini, Clarke, Contardo, Coppi, Corradi, Cunha, Dame, Dopita, Dwek, Edvardsson, Ferrini, Firmani, Fluks, Freudenreich, Gilmore, Gilmore, Gilmore, Gizis, Gould, Grevesse, Guibert, Guiderdoni, Guiderdoni, Gummersbach, Gusten, Han, Haywood, Iben, Israelian, Jimenez, Kennicutt, Kennicutt, Kent, Kroupa, Kroupa, Kuchinski, Kulkarni, Kurucz, Köppen, Lacey, Larson, Lejeune, Lilly, Lyne, Marigo, Massey, Massey, Matteucci, Matteucci,, Mayor, Mera, Molla, N. Prantzos, Natta, Nomoto, Onihishi, Pagel, Prantzos, Prantzos, Prantzos, Prantzos, Prantzos, Prantzos, Prantzos, Rana, Reid, Renzini, Robin, Rocha-Pinto, Rocha-Pinto, Romani, Ruiz-Lapuente, Ruphy, S. Boissier, Sackett, Salpeter, Samland, Scalo, Scalo, Schaller, Shaver, Smart, Steinmetz, Talbot, Tammann, Thielemann, Thielemann, Thomas, Thorsett, Timmes, Tinsley, Tosi, Tosi, Tsujimoto, van der Kruit, Vilchez, Wang, Wang, Wang, Woosley, Wyse, Wyse, Xu   +122 more
core   +4 more sources