Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Alexandre, Vazdekis"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 515(3), 3472-3491. Oxford University Press
We perform a detailed study of the stellar populations in a sample of massive Fornax dwarf galaxies using a set of newly defined line indices. Using data from the Integral field spectroscopic data, we study abundance ratios of eight dEs with stellar
Autor:
Angela, Iovino, Amata, Mercurio, Anna Rita Gallazzi, Francesco La Barbera, Marcella, Longhetti, Crescenzo, Tortora, Stefano, Zibetti, Francesco, Belfiore, Matteo, Bianconi, Giovanni, Busarello, Corsini, Enrico M., Luca, Costantin, Gabriella De Lucia, Roberto De Propris, Francesco, D’Eugenio, Fabio, Fontanot, Rubén, García-Benito, Michaela, Hirschmann, Christopher, Haines, Filippo, Mannucci, Sean, Mcgee, Paola, Merluzzi, Morelli, Lorenzo, Moretti, Alessia, Anna, Pasquali, Bianca, Poggianti, Lucia, Pozzetti, Rodighiero, Giulia, Patricia, Sánchez-Blázquez, Arjen Van Der Wel, Alexandre, Vazdekis, Vulcani, Benedetta, Anita, Zanella, Marianna, Annunziatella, Alice, Concas, Cassarà, Letizia P., Giovanni, Cresci, Mirko, Curti, Adriana De Lorenzo-Cáceres, Anna Ferre Mateu, González Delgado, Rosa M., Mancini, Chiara, Camilla, Pacifici, Enrique, Perez-Montero, Pizzella, Alessandro, Perez-Gonzalez, Pablo G., Trager, Scott C., Daniela, Vergani
Galaxy spectra encode in their continuum and absorption/emission features a wealth of information on galaxy physics, mass assembly and chemical enrichment history. The 4MOST-StePS survey will collect high-quality spectra (with a median signal-to-nois
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f91f31d4c442cf5e499b8898059da8f
Autor:
Gaspar-Gorostieta, Iveth Adaena, Vazdekis, Alexandre Vazdekis, Prieto, Carlos Allende, Lançon, Ariane, Knowles, Adam T.
We have computed a theoretical library of stellar spectra, from Near-UV to Near-IR, with varying abundance ratios of alpha, C, N, Na, among others. The current project is aimed at building-up a new set of semi-empirical stellar spectral libraries tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::029a14bc2a259bc60bf91ecbe169080f
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 505:415-434
Using new, homogeneous, long-slit spectroscopy in the wavelength range from ~0.35 to ~1micron, we study radial gradients of optical and near-infrared (NIR) IMF-sensitive features along the major axis of the bulge of M31, out to a galacto-centric dist
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 504:2190-2223
Stellar population studies provide unique clues to constrain galaxy formation models. So far, detailed studies based on absorption line strengths have mainly focused on the optical spectral range although many diagnostic features are present in other
Massive Early-Type Galaxies (ETGs) show several strong CO absorption features in their H- and K-band spectra that cannot be explained by state-of-the-art stellar population models. For many years, the disagreement has been attributed to the presence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e5827eee049704bdc37d4e374e53319
http://arxiv.org/abs/2206.12578
http://arxiv.org/abs/2206.12578
Autor:
Francesco La Barbera, Adam Knowles, Carlos Allende Prieto, Alexandre Vazdekis, Elham Eftekhari
Massive Early-Type Galaxies (ETG) in the local Universe are believed to be the most mature stage of galaxy evolution. Their stellar population content reveals the evolutionary history of these galaxies. However, while state-of-the-art Stellar Populat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8474702d6f52172e211551cf576df449
http://arxiv.org/abs/2202.08651
http://arxiv.org/abs/2202.08651
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 486:3788-3804
Using samples drawn from the Sloan Digital Sky Survey, we study for the first time the relation between large-scale environments (Clusters, Groups and Voids) and the stellar Initial Mass Function (IMF). We perform an observational approach based on t
Autor:
Ph. Prugniel, Reynier Peletier, R. Jain, Jesús Falcón-Barroso, Tim-Oliver Husser, Peter H. Hauschildt, Scott Trager, Lucimara Martins, Paula Coelho, Alexandre Vazdekis, P. Sánchez Blázquez, Anais Gonneau, Ariane Lançon, K. Verro, Mariya Lyubenova, A. Arentsen, Yanping Chen
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2021, 649, ⟨10.1051/0004-6361/202039371⟩
Astronomy & Astrophysics
Astronomy and astrophysics, 649:A97. EDP Sciences
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 649, ⟨10.1051/0004-6361/202039371⟩
Astronomy and Astrophysics-A&A, 2021, 649, ⟨10.1051/0004-6361/202039371⟩
Astronomy & Astrophysics
Astronomy and astrophysics, 649:A97. EDP Sciences
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 649, ⟨10.1051/0004-6361/202039371⟩
The path towards robust near-infrared extensions of stellar population models involves the confrontation between empirical and synthetic stellar spectral libraries across the wavelength ranges of photospheric emission. [...] With its near-UV to near-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efdccd0bda35f805737f12176846e7d7
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 479:5678-5685
In this paper, we present a new derivation of the shape and evolution of the integrated galaxy-wide initial mass function (IGIMF), incorporating explicitly the effects of cosmic rays (CRs) as regulators of the chemical and thermal state of the gas in