1.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of CataniaIT433 papers
- Centre National de la Recherche ScientifiqueFR334 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR297 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di CataniaIT243 papers
- Istituto Nazionale di Fisica NucleareIT224 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT203 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT186 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR177 papers
- Sapienza University of RomeIT176 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT173 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT169 papers
- University of GenoaIT168 papers
33 papers · 1 filter
An updated picture of pre-solar history from short-lived radioactive isotopes and inferences on the birth of the Sun
Benjámin Soós, Thomas C. L. Trueman, Andrés Yagüe López +2
We examine the origin of the short-lived radionuclides (SLRs, defined as having half-lives between 0.1 and 100 Ma) present in the early Solar System (ESS) by investigating how pred…
Strontium-84 Enrichments in Presolar Grains Provide First Evidence of p-process Nucleosynthesis in Core-collapse Supernovae
Ishita Pal, Manavi Jadhav, Danielle Z. Shulaker +9
This study reports detection of rare p-process isotopes within presolar grains. Presolar grains are relic dust grains from dying stars. These microscopic dust particles are found i…
Unveiling the nature of HE 0107-5240
E. Caffau, M. Steffen, P. Molaro +27
The vast majority of the most iron-poor stars in the Galaxy exhibit a strong carbon enhancement, with C/H ratios only about two orders of magnitude below solar. This unusual chemic…
Production of radioactive Na in core-collapse supernovae: the Ne-E(L) component in presolar grains and its possible consequences on supernova observations
M. Pignatari, S. Amari, P. Hoppe +8
Presolar graphite grains carry the isotopic signatures of their parent stars. A significant fraction of presolar graphites shows isotopic abundance anomalies relative to solar for…
The SPAr burning: proton captures powering carbon-oxygen shell mergers in massive stars
L. Roberti, M. Pignatari
Carbon-oxygen (C-O) shell mergers in massive stars play a crucial role in both nucleosynthesis and the final stages of stellar evolution. These convective-reactive events significa…
Solar fusion III: New data and theory for hydrogen-burning stars
B. Acharya, M. Aliotta, A. B. Balantekin +47
In stars that lie on the main sequence in the Hertzsprung-Russel diagram, like our sun, hydrogen is fused to helium in a number of nuclear reaction chains and series, such as the p…
Low luminosity Type II supernovae -- IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class
G. Valerin, M. L. Pumo, A. Pastorello +20
Photometric and spectroscopic data for two Low Luminosity Type IIP Supernovae (LL SNe IIP) are presented. SN 2020cxd reaches a peak absolute magnitude = -13.90 0.05 m…
Direct observation of the radial magnetic field gradient in HD58260 from spectropolarimetry of NLTE lines in emission
Marina Giarrusso
Because of the unquestionable presence of magnetic fields in stars, their role in the structure of stellar atmospheres has for a long time been a subject of speculation. In our con…
Presolar grain isotopic ratios as constraints to nuclear and stellar parameters of AGB nucleosynthesis
Sara Palmerini, Maurizio Busso, Diego Vescovi +8
Recent models for evolved Low Mass Stars (with ), undergoing the AGB phase assume that magnetic flux-tube buoyancy drives the formation of C reservoirs…
A scaling relationship for non-thermal radio emission from ordered magnetospheres: from the top of the Main Sequence to planets
P. Leto, C. Trigilio, J. Krticka +20
In this paper, we present the analysis of incoherent non-thermal radio emission from a sample of hot magnetic stars, ranging from early-B to early-A spectral type. Spanning a wide…
Theoretical predictions of surface light element abundances in protostellar and pre-Main Sequence phase
E. Tognelli, S. Degl'Innocenti, P. G. Prada Moroni +5
Theoretical prediction of surface stellar abundances of light elements -- lithium, beryllium, and boron -- represents one of the most interesting open problems in astrophysics. As…
The impact of the new measurement of the fusion cross section on the final compactness of the massive stars
Alessandro Chieffi, Lorenzo Roberti, Marco Limongi +6
We discuss how the new measurement of the fusion cross section carried out with the Trojan Horse Method (Tumino, A., Spitaleri, C., La Cognata, M., et al., 2018, Na…
Low luminosity Type II supernovae III. SN 2018hwm, a faint event with an unusually long plateau
A. Reguitti, M. L. Pumo, P. A. Mazzali +9
In this work, we present photometric and spectroscopic data of the low-luminosity Type IIP supernova (SN) 2018hwm. The object shows a faint ( mag) and very long (130…
Long-term photospheric instabilities and envelopes dynamics in the post-AGB binary system 89 Herculis
M. Gangi, M. Giarrusso, M. Munari +3
We present a long-term optical spectroscopic study of the post-AGB binary system 89 Herculis, with the aim to characterize the relationship between photospheric instabilities and d…
The auroral radio emission of the magnetic B-type star rho OphC
P. Leto, C. Trigilio, C. S. Buemi +19
The non-thermal radio emission of main-sequence early-type stars is a signature of stellar magnetism. We present multi-wavelength (1.6-16.7 GHz) ATCA measurements of the early-type…
The single-sided pulsator CO~Camelopardalis
D. W. Kurtz, G. Handler, S. A. Rappaport +10
CO~Cam (TIC 160268882) is the second ``single-sided pulsator'' to be discovered. These are stars where one hemisphere pulsates with a significantly higher amplitude than the other…
Evidence for radio and X-ray auroral emissions from the magnetic B-type star rho Oph A
P. Leto, C. Trigilio, F. Leone +20
We present new ATCA multi-wavelength radio measurements (range 2.1-21.2 GHz) of the early-type magnetic star rho Oph A, performed in March 2019 during 3 different observing session…
Observational constraints on the optical and near-infrared emission from the neutron star-black hole binary merger S190814bv
K. Ackley, L. Amati, C. Barbieri +151
On 2019 August 14, the LIGO and Virgo interferometers detected a high-significance event labelled S190814bv. Preliminary analysis of the GW data suggests that the event was likely…
On the mass of supernova progenitors: the role of the CC reaction
Oscar Straniero, Luciano Piersanti, Inmaculata Dominguez +1
A precise knowledge of the masses of supernova progenitors is essential to answer various questions of modern astrophysics, such as those related to the dynamical and chemical evol…
The importance of the 13C(alpha,n)16O reaction in Asymptotic Giant Branch stars
S. Cristallo, M. La Cognata, C. Massimi +9
Low mass Asymptotic Giant Branch stars are among the most important polluters of the interstellar medium. In their interiors, the main component (A>90) of the slow neutron capture…
The solar-like "Second Spectrum" and the polarised metal lines in emission of the post-AGB binary 89 Herculis
F. Leone, M. Gangi, M. Giarrusso +6
We studied the polarised spectrum of the post-AGB binary system 89\,Herculis on the basis of data collected with the high resolution \emph{Catania Astrophysical Observatory Spectro…
ASASSN-15no: The Supernova that plays hide-and-seek
S. Benetti, L. Zampieri, A. Pastorello +11
We report the results of our follow-up campaign of the peculiar supernova ASASSN-15no, based on optical data covering ~300 days of its evolution. Initially the spectra show a pure…
Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm
G. Terreran, M. L. Pumo, T. -W. Chen +41
We present our study of OGLE-2014-SN-073, one of the brightest Type II SN ever discovered, with an unusually broad lightcurve combined with high ejecta velocities. From our hydrody…
Concurrent application of ANC and THM to assess the absolute cross section at astrophysical energies and possible consequences for neutron production in low-mass AGB stars
Oscar Trippella, Marco La Cognata
The reaction is considered to be the main neutron source responsible for the production of heavy nuclides (from to ) through sl…