211 citations · 437 across the 15 of their papers we have counts for
15 papers
A Comparison of Full Spectral Fitting Codes for Measuring the Stellar Initial Mass Function and Other Stellar Population Properties in Elliptical Galaxies
Ilaria Lonoce, Anja Feldmeier-Krause, Alexandra Masegian +1
We present a comparative test of four widely used full spectral fitting codes, with the aim of answering the question: how robust is the retrieval of the stellar initial mass funct…
The Initial Mass Function and Other Stellar Properties Across the Core of the Hydra I Cluster
Ilaria Lonoce, Wendy Freedman, Anja Feldmeier-Krause
The Hydra I cluster offers an excellent opportunity to study and compare the relic old stellar populations in the core of its two brightest galaxies. In addition, the differing kin…
The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation
Shoko Jin, Scott C. Trager, Gavin B. Dalton +212
WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for the William Herschel Telescope, will see first light in late 2022. WEAVE comprises a new 2-degree…
Stellar Population and Elemental Abundance Gradients of Early-type Galaxies
A. Feldmeier-Krause, I. Lonoce, W. L. Freedman
The evolution of galaxies is imprinted in their stellar populations. Several stellar population properties in massive early-type galaxies have been shown to correlate with intrinsi…
The Stellar Initial Mass Function and Population Properties of M89 from Optical and NIR Spectroscopy: Addressing Biases in Spectral Index Analysis
Ilaria Lonoce, Anja Feldmeier-Krause, Wendy L. Freedman
The complexity of constraining the stellar initial mass function (IMF) in early-type galaxies cannot be overstated, given the necessity of both very high signal-to-noise (S/N) data…
Measuring the stellar population parameters of the early-type galaxy NGC 3923 -- The challenging measurement of the initial mass function
A. Feldmeier-Krause, I. Lonoce, W. L. Freedman
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 Milk…
Stellar population properties of individual massive early-type galaxies at 1.4 < z < 2
I. Lonoce, C. Maraston, D. Thomas +4
We analyse publicly available, individual spectra of four, massive () early-type galaxies with redshifts in the range 1.4 < z < 2 to determine their stellar con…
A few StePS forward in unveiling the complexity of galaxy evolution: light-weighted stellar ages of intermediate redshift galaxies with WEAVE
L. Costantin, A. Iovino, S. Zibetti +29
The upcoming new generation of optical spectrographs on four-meter-class telescopes will provide invaluable information for reconstructing the history of star formation in individu…
Ultramassive dense early-type galaxies: velocity dispersions and number density evolution since z=1.6
A. Gargiulo, P. Saracco, S. Tamburri +2
In this paper we investigate the mass assembly history of ultramassive (Mstar > 10^11Msun) dense (Sigma = Mstar/(2*pi*Re^2) > 2500 Msun/pc^2) early-type galaxies (ETGs) over the la…
Old age and super-solar metallicity in a massive z~1.4 early-type galaxy from VLT/X-Shooter spectroscopy
Ilaria Lonoce, Marcella Longhetti, Claudia Maraston +14
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 a…
The population of early-type galaxies: how it evolves with time and how it differs from passive and late-type galaxies
S. Tamburri, P. Saracco, M. Longhetti +3
The aim of our analysis is twofold. On the one hand we are interested in addressing whether a sample of ETGs morphologically selected differs from a sample of passive galaxies in t…
Lower mass normalization of the stellar initial mass function for dense massive early-type galaxies at z ~ 1.4
A. Gargiulo, P. Saracco, M. Longhetti +3
This paper aims at understanding if the normalization of the stellar initial mass function (IMF) of massive early-type galaxies (ETGs) varies with cosmic time and/or with mean stel…
Spectral detection of multiple stellar populations in z~1 early-type galaxies
I. Lonoce, M. Longhetti, P. Saracco +2
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…
LBT-LUCIFER spectroscopy: kinematics of a compact early type galaxy at z\simeq1.4
Marcella Longhetti, Paolo Saracco, Adriana Gargiulo +2
We present a high signal to noise (S/N10) medium resolution (R=2000) LBT-LUCIFER spectrum of the early-type galaxy (ETG) S2F1-142 at . By means of the CaT line at $8…
Scaling relations of cluster elliptical galaxies at z~1.3. Distinguishing luminosity and structural evolution
P. Saracco, A. Casati, A. Gargiulo +10
[Abridged] We studied the size-surface brightness and the size-mass relations of a sample of 16 cluster elliptical galaxies in the mass range 10^{10}-2x10^{11} M_sun which were mor…