A few StePS forward in unveiling the complexity of galaxy evolution: light-weighted stellar ages of intermediate-redshift galaxies with WEAVE

Autor: Crescenzo Tortora, Anna Gallazzi, M. Bolzonella, Margherita Talia, G. Busarello, L. Peralta de Arriba, Alessandro Pizzella, Amata Mercurio, Chris P. Haines, Bianca M. Poggianti, L. Costantin, Marc Balcells, Sean L. McGee, Alexandre Vazdekis, Marcella Longhetti, Anna Ferré-Mateu, R. García-Benito, Lucia Pozzetti, I. Lonoce, Paola Merluzzi, David Murphy, Patricia Sanchez-Blazquez, A. Gargiulo, Daniela Vergani, Benedetta Vulcani, F. La Barbera, Lorenzo Morelli, A. Iovino, Shuowen Jin, Scott Trager, Gavin Dalton, Stefano Zibetti

Publikováno v: DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
instname
Instituto Nacional de Técnica Aeroespacial (INTA)
Astronomy & astrophysics, 632:9. EDP Sciences
Digital.CSIC. Repositorio Institucional del CSIC

Context. The upcoming new generation of optical spectrographs on four-meter-class telescopes, with their huge multiplexing capabilities, excellent spectral resolution, and unprecedented wavelength coverage, will provide invaluable information for rec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::266e665c166299cfeec1acbe328e68be
https://www.aanda.org/articles/aa/abs/2019/12/aa36550-19/aa36550-19.html

Measuring the Stellar Population Parameters of the Early-type Galaxy NGC 3923: The Challenging Measurement of the Initial Mass Function*

Autor: I. Lonoce, A. Feldmeier-Krause, Wendy L. Freedman

Publikováno v: The Astrophysical Journal. 902:12

Recent studies of early-type galaxies have suggested that the initial mass function (IMF) slope is bottom-heavy, i.e. they contain a larger fraction of low-mass stars than the Milky Way. However, measurements of the IMF remain challenging in unresolv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45c949d6ced9c437c15e6935a728a86e
https://doi.org/10.3847/1538-4357/abafb3

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Old age and supersolar metallicity in a massive z ~ 1.4 early-type galaxy from VLT/X-Shooter spectroscopy

Autor: Marcella Longhetti, Annalisa Citro, F. Ciocca, A. Gargiulo, E. Daddi, Claudia Maraston, Lucia Pozzetti, I. Lonoce, Roberto Maiolino, F. Mannucci, Paolo Saracco, S. di Serego Alighieri, Salvatore Quai, Michele Moresco, Andrea Cimatti, Daniel Thomas, C. Mancini

Publikováno v: Lonoce, I, Longhetti, M, Maraston, C, Thomas, D, Mancini, C, Cimatti, A, Ciocca, F, Citro, A, Daddi, E, Alighieri, S D S, Gargiulo, A, Maiolino, R, Mannucci, F, Moresco, M, Pozzetti, L, Quai, S & Saracco, P 2015, ' Old age and super-solar metallicity in a massive z~1.4 early-type galaxy from VLT/X-Shooter spectroscopy ', Monthly Notices of the Royal Astronomical Society, vol. 454, no. 4, pp. 3912-3919 . https://doi.org/10.1093/mnras/stv2150

We present the first estimate of age, stellar metallicity and chemical abundance ratios, for an individual early-type galaxy at high-redshift (z = 1.426) in the COSMOS field. Our analysis is based on observations obtained with the X-Shooter instrumen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc0bd06dda75f0a096f74db0bbbcf12a
http://hdl.handle.net/11585/549145

Spectral detection of multiple stellar populations in z~1 early-type galaxies

Autor: Paolo Saracco, Adriana Gargiulo, Marcella Longhetti, I. Lonoce, S. Tamburri

We present a spectroscopic analysis based on measurements of two mainly age-dependent spectrophotometric indices in the 4000A rest frame region, i.e. H+K(CaII) and Delta4000, for a sample of 15 early-type galaxies (ETGs) at 0.7 < z_{spec} < 1.1, morp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21132060cbbabf38cc9c7df2a66b8d30
http://arxiv.org/abs/1409.1029