108 citations · 810 across the 21 of their papers we have counts for
21 papers
Bayesian analysis of proton-proton fusion in chiral effective field theory
Vittorio Barlucchi, Alex Gnech, Scilla Degl'Innocenti +1
The astrophysical -factor for the proton-proton fusion is calculated in the low-energy regime for a variety of nuclear interactions and consistent nuclear currents, derived with…
Protostellar accretion and the cosmological lithium problem
S. Cassisi, M. Salaris, S. Degl'Innocenti +2
The cosmological lithium problem, i.e. the discrepancy between the lithium abundance predicted by the Big Bang Nucleosynthesis and the one observed for the stars of the "Spite plat…
PLATO as it is: a legacy mission for Galactic archaeology
A. Miglio, C. Chiappini, B. Mosser +102
Deciphering the assembly history of the Milky Way is a formidable task, which becomes possible only if one can produce high-resolution chrono-chemo-kinematical maps of the Galaxy.…
Evolution of the habitable zone of low-mass stars. Detailed stellar models and analytical relationships for different masses and chemical compositions
G. Valle, M. Dell'Omodarme, P. G. Prada Moroni +1
We study the temporal evolution of the habitable zone (HZ) of low-mass stars - only due to stellar evolution - and evaluate the related uncertainties. These uncertainties are then…
Cumulative physical uncertainty in modern stellar models. II. The dependence on the chemical composition
G. Valle, M. Dell'Omodarme, P. G. Prada Moroni +1
We extend our work on the effects of the uncertainties on the main input physics for the evolution of low-mass stars. We analyse the dependence of the cumulative physical uncertain…
Cumulative physical uncertainty in modern stellar models I. The case of low-mass stars
G. Valle, M. Dell'Omodarme, P. G. Prada Moroni +1
Using our updated stellar evolutionary code, we quantitatively evaluate the effects of the uncertainties in the main physical inputs on the evolutionary characteristics of low mass…
Lithium-7 surface abundance in pre-MS stars. Testing theory against clusters and binary systems
E. Tognelli, S. Degl'Innocenti, P. G. Prada Moroni
The disagreement between theoretical predictions and observations for surface lithium abundance in stars is a long-standing problem, which indicates that the adopted physical treat…
ΔY/ ΔZ from the analysis of local K dwarfs
Mario Gennaro, Pier Giorgio Prada Moroni, Scilla Degl'Innocenti
The stellar helium-to-metal enrichment ratio, ΔY/ΔZ, is a widely studied astrophysical quantity. However, its value is still not precisely constrained. This paper is focused on the…
Bright metal-poor variables: why "Anomalous" Cepheids?
F. Caputo, V. Castellani, S. Degl'Innocenti +2
We investigate the theoretical scenario concerning the large sample of variables recently discovered in the dwarf, metal-poor irregular galaxy Leo A, focusing the attention on the…
Asymptotic Giant Branch predictions: theoretical uncertainties
S. Cassisi, V. Castellani, S. Degl'Innocenti +2
In this paper we investigate the level of agreement between observations and "new" Asymptotic Giant Branch (AGB) models, as produced by updating the physical inputs adopted in prev…
Stellar models and Hyades: the Hipparcos test
V. Castellani, S. Degl'Innocenti, P. G. Prada Moroni
We compare theoretical stellar models for Main Sequence (MS) stars with the Hipparcos database for the Hyades cluster to give a warning against the uncritical use of available theo…
Theoretical stellar models for old galactic clusters
V. Castellani, S. Degl'Innocenti, M. Marconi
We present new evolutionary stellar models suitable for old Population I clusters, discussing both the consequences of the most recent improvements in the input physics and the eff…
Galactic Globular Cluster Stars: from Theory to Observation
S. Cassisi, V. Castellani, S. Degl'Innocenti +2
We use evolutionary calculations presented in a recent paper (Cassisi et al. 1998) to predict B,V,I magnitudes for stars in galactic globulars. The effect of the adopted mixing len…
Stars as galactic neutrino sources
E. Brocato, V. Castellani, S. Degl'Innocenti +2
Theoretical expectations concerning stars as neutrino sources are presented according to detailed evaluations of the stellar evolutionary histories for an extended grid of stellar…
Helioseismology and p+p d + e + in the sun
S. Degl'Innocenti, G. Fiorentini, B. Ricci
By using a phenomenological field theory of nucleon-nucleon interactions, Oberhummer et al. found a cross section of p+p d + e + about 2.9 times that given by the p…
Helioseismology and standard solar models
S. Degl'Innocenti, W. A. Dziembowski, G. Fiorentini +1
We present a systematical analysis of uncertainties in the helioseismological determination of quantities characterizing the solar structure. We discuss the effect of errors on the…
The age of the oldest globular clusters
M. Salaris, S. Degl'Innocenti, A. Weiss
The age of three of the oldest clusters -- M15, M68, M92 -- has been redetermined. We use the latest EOS and opacity data available for calculating both isochrones and zero age hor…
Time-Variation of Newton's Constant and the Age of Globular Clusters
S. Degl'Innocenti, G. Fiorentini, G. G. Raffelt +2
A variation of Newton's constant over cosmological time scales would modify the main-squence time of globular cluster (GC) stars. We have calculated the evolution of low-mass s…
The Hot End of Evolutionary Horizontal Branches
V. Castellani, S. Degl'Innocenti, L. Pulone
In this paper we investigate the hot end of the HB, presenting evolutionary constraints concerning the CM diagram location and the gravity of hot HB stars. According to the adopted…
HB Morphology and Age Indicators for Metal-Poor Stellar Systems with Age in the Range of 1 to 20 Gyr
F. Caputo, S. Degl'Innocent
Isochrone computations and horizontal branch (HB) models for Y(MS)=0.23 and two values of Z (0.0001, 0.0004)are used to derive constraints on the age indicators and HB morphology o…
Dwarf Spheroidals and the Evolution of Not-Too-Old Population II Stars
V. Castellani, S. Degl'Innocenti
Previous evolutionary computations concerning stars with masses in the range of the ``Red Giants Transition Phase'' are extended to lower metallicities. Clusters isochrones for two…