Results 1 to 10 of about 104,545 (289)

Synthetic stellar populations: single stellar populations, stellar interior models and primordial proto-galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
We present a new set of stellar interior and synthesis models for predicting the integrated emission from stellar populations in star clusters and galaxies of arbitrary age and metallicity.
Dunlop, James, Jimenez, Raul, MacDonald, James, Padoan, Paolo, Peacock, John   +4 more
core   +2 more sources

Stellar Populations with ELTs [PDF]

Proceedings of the International Astronomical Union, 2006
The star formation, mass assembly and chemical enrichment histories of galaxies, and their present distributions of dark matter, remain encoded in their stellar populations. Distinguishing the actual distribution functions of stellar age, metallicity and
Gilmore, Gerard, Wyse, Rosemary F. G.
core   +2 more sources

The “Building Blocks” of Stellar Halos [PDF]

Galaxies, 2017
The stellar halos of galaxies encode their accretion histories. In particular, the median metallicity of a halo is determined primarily by the mass of the most massive accreted object.
Kyle A. Oman, Else Starkenburg, Julio F. Navarro   +2 more
doaj   +5 more sources

Panchromatic Averaged Stellar Populations: PaasP [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
We study how the spectral fitting of galaxies, in terms of light fractions derived in one spectral region translates into another region, by using results from evolutionary synthesis models.
Alongi, Asari, Bertelli, Bica, Bica, Bica, Bica, Bonatto, Bonatto, Bonatto, Bressan, Bressan, Bressan, Bruzual, Bruzual, C. Bonatto, Chabrier, Chen, Cid Fernandes, Cid Fernandes, Cid Fernandes, Cid Fernandes, Cimatti, Davies, Davies, Davies, Dottori, E. Balbinot, Eggen, Engelbracht, Fagotto, Fagotto, Girardi, Girardi, Girardi, González Delgado, González Delgado, Hammer, Hammer, Hammer, Kennicutt, Kotulla, Krabbe, Kroupa, Kurucz, Lançon, Lançon, Lejeune, Lejeune, M. G. Pastoriza, Maraston, Maraston, Maraston, Maraston, Marigo, Mateus, Miller, Oliva, Origlia, Origlia, Pickles, R. Cid Fernandes, R. Riffel, Raimann, Ramos, Rickes, Rickes, Rieke, Riffel, Riffel, Riffel, Riffel, Rodighiero, Salpeter, Saraiva, Scalo, Schaller, Schmitt, Schulz, Searle, Serra, Silva, Thomas, Thomas, Trager, Trager, van der Wel, Vazdekis, Westera, White, Worthey   +90 more
core   +5 more sources

Re-evaluating old stellar populations [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
20 pages. MNRAS (in press). Paper accompanies v2.2 release of the Binary Population and Spectral Synthesis (BPASS) models at http://bpass.auckland.ac.nz or http://warwick.ac.uk ...
Stanway, Elizabeth R., Eldridge, J. J.
openaire   +4 more sources

Stellar Populations in Normal Galaxies [PDF]

Proceedings of the International Astronomical Union, 2007
I describe very briefly the new libraries of empirical spectra of stars covering wide ranges of values of the atmospheric parameters Teff, log g, [Fe/H], as well as spectral type, that have become available in the recent past, among them the HNGSL, MILES,
A, Gustavo Bruzual
core   +5 more sources

Stellar populations

Open Astronomy, 1999
Wyse Rosemary F. G.
doaj   +2 more sources

A Multiwavelength Classification and Study of Red Supergiant Candidates in NGC 6946

The Astrophysical Journal, 2023
We have combined resolved stellar photometry from Hubble Space Telescope (HST), Spitzer, and Gaia to identify red supergiant (RSG) candidates in NGC 6946, based on their colors, proper motions, visual morphologies, and spectral energy distributions.
Jared R. Johnson, Brad Koplitz, Benjamin F. Williams, Julianne J. Dalcanton, Andrew Dolphin, Léo Girardi   +5 more
doaj   +1 more source

Origins of the Evil Eye: M64's Stellar Halo Reveals the Recent Accretion of an SMC-mass Satellite

The Astrophysical Journal Letters, 2023
M64, often called the “Evil Eye” galaxy, is unique among local galaxies. Beyond its dramatic, dusty nucleus, it also hosts an outer gas disk that counter-rotates relative to its stars.
Adam Smercina, Eric F. Bell, Paul A. Price, Jeremy Bailin, Julianne J. Dalcanton, Roelof S. de Jong, Richard D’Souza, Katya Gozman, In Sung Jang, Antonela Monachesi, David Nidever, Colin T. Slater   +11 more
doaj   +1 more source

Multiple Stellar Populations at Less Evolved Stages. III. A Possible Helium Spread in NGC 2210

The Astrophysical Journal, 2023
Helium variations are common features of globular clusters (GCs) with multiple stellar populations. All the formation scenarios predict that secondary population stars are enhanced in helium, but the exact helium content depends on the polluters ...
Chengyuan Li, Xin Ji, Long Wang, Yue Wang, Baitian Tang, Antonino P. Milone, Yujiao Yang, Holger Baumgardt, Dengkai Jiang   +8 more
doaj   +1 more source