273 citations · 1.5k across the 26 of their papers we have counts for
26 papers
Nebular emission from young stellar populations including binary stars
M. Lecroq, S. Charlot, A. Bressan +8
We investigate the nebular emission produced by young stellar populations using the new GALSEVN model based on the combination of the SEVN population-synthesis code including binar…
Stellar Black Holes and Compact Stellar Remnants
Guglielmo Costa, Martyna Chruślińska, Jakub Klencki +4
The recent observations of gravitational waves (GWs) by the LIGO-Virgo-KAGRA collaboration (LVK) have provided a new opportunity for studying our Universe. By detecting several mer…
A Study of Primordial Very Massive Star Evolution. II. Stellar Rotation and Gamma-Ray Burst Progenitors
Guglielmo Volpato, Paola Marigo, Guglielmo Costa +4
We calculate new evolutionary models of rotating primordial very massive stars, with initial mass from to , for two values of the initial metallici…
Dissecting the Gaia HR diagram II. The vertical structure of the star formation history across the Solar Cylinder
Alessandro Mazzi, Léo Girardi, Michele Trabucchi +11
Starting from the Gaia DR3 HR diagram, we derive the star formation history (SFH) as a function of distance from the Galactic Plane within a cylinder centred on the Sun with a 200~…
Binary black hole mergers from Population III stars: uncertainties from star formation and binary star properties
Filippo Santoliquido, Michela Mapelli, Giuliano Iorio +5
Population III (Pop. III) binary stars likely produced the first stellar-born binary black hole (BBH) mergers in the Universe. Here, we quantify the main sources of uncertainty for…
Massive binary black holes from Population II and III stars
Guglielmo Costa, Michela Mapelli, Giuliano Iorio +4
Population III stars, born from the primordial gas in the Universe, lose a negligible fraction of their mass via stellar winds and possibly follow a top-heavy mass function. Hence,…
Hubble Space Telescope survey of Magellanic Cloud star clusters. Photometry and astrometry of 113 clusters and early results
A. P. Milone, G. Cordoni, A. F. Marino +29
In the past years, we have undertaken an extensive investigation of LMC and SMC star clusters based on HST data. We present photometry and astrometry of stars in 101 fields observe…
A Study of Primordial Very Massive Star Evolution
Guglielmo Volpato, Paola Marigo, Guglielmo Costa +3
We present new evolutionary models of primordial very massive stars, with initial masses ranging from to , that extend from…
Compact object mergers: exploring uncertainties from stellar and binary evolution with SEVN
Giuliano Iorio, Michela Mapelli, Guglielmo Costa +9
Population-synthesis codes are an unique tool to explore the parameter space of massive binary star evolution and binary compact object (BCO) formation. Most population-synthesis c…
Simulating the Legacy Survey of Space and Time stellar content with TRILEGAL
Piero Dal Tio, Giada Pastorelli, Alessandro Mazzi +19
We describe a large simulation of the stars to be observed by the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST). The simulation is based on the TRILEGAL code, wh…
PARSEC V2.0: Stellar tracks and isochrones of low and intermediate mass stars with rotation
C. T. Nguyen, G. Costa, L. Girardi +6
We present a new comprehensive collection of stellar evolutionary tracks and isochrones for rotating low- and intermediate-mass stars assembled with the updated version of PARSEC V…
The impact of very massive stars on the chemical evolution of extremely metal-poor galaxies
S. Goswami, L. Silva, A. Bressan +6
In recent observations of extremely metal-poor low-mass starburst galaxies, almost solar Fe/O ratios are reported, despite N/O ratios consistent with the low metallicity. We invest…
Formation of black holes in the pair-instability mass gap: Hydrodynamical simulations of a head-on massive star collision
Alessandro Ballone, Guglielmo Costa, Michela Mapelli +3
The detection of the binary black hole merger GW190521, with primary black hole mass , proved the existence of black holes in the theoretically pr…
Formation of black holes in the pair-instability mass gap: evolution of a post-collision star
Guglielmo Costa, Alessandro Ballone, Michela Mapelli +1
The detection of GW190521 by the LIGO-Virgo collaboration has revealed the existence of black holes (BHs) in the pair-instability (PI) mass gap. Here, we investigate the formation…
A Fresh Look at AGB stars in Galactic Open Clusters with Gaia: Impact on Stellar Models and the Initial-Final Mass Relation
Paola Marigo, Diego Bossini, Michele Trabucchi +7
Benefiting from the GAIA second and early third releases of photometric and astrometric data we examine the population of asymptotic giant branch (AGB) stars that appear in the fie…
Dissecting the Gaia HR diagram within 200 pc
Piero Dal Tio, Alessandro Mazzi, Leo Girardi +6
We analyse the high-quality Hertzsprung-Russell diagram (HRD) derived from Gaia data release 2 for the Solar Neighbourhood. We start building an almost-complete sample within 200 p…
Constraining accretion efficiency in massive binary stars with LIGO-Virgo black holes
Yann Bouffanais, Michela Mapelli, Filippo Santoliquido +3
The growing sample of LIGO--Virgo black holes (BHs) opens new perspectives for the study of massive binary evolution. Here, we study the impact of mass accretion efficiency and com…
Formation of GW190521 from stellar evolution: the impact of the hydrogen-rich envelope, dredge-up and C(, )O rate on the pair-instability black hole mass gap
Guglielmo Costa, Alessandro Bressan, Michela Mapelli +3
Pair-instability (PI) is expected to open a gap in the mass spectrum of black holes (BHs) between M and M. The existence of the mass…
The Predicted Properties of Helium-Enriched Globular Cluster Progenitors at High Redshift
David M. Nataf, Shunsaku Horiuchi, Guglielmo Costa +5
Globular cluster progenitors may have been detected by \textit{HST}, and are predicted to be observable with \textit{JWST} and ground-based extremely-large telescopes with adaptive…
YBC, a stellar bolometric corrections database with variable extinction coefficients: an application to PARSEC isochrones
Yang Chen, Léo Girardi, Xiaoting Fu +7
We present the \texttt{YBC} database of stellar bolometric corrections (BCs), available at \url{http://stev.oapd.inaf.it/YBC}. We homogenize widely-used theoretical stellar spectra…
Multiple stellar populations in NGC 1866. New clues from Cepheids and Colour-Magnitude Diagram
Guglielmo Costa, Léo Girardi, Alessandro Bressan +5
We perform a comprehensive study of the stellar populations in the young Large Magellanic Cloud cluster NGC 1866, combining the analysis of its best-studied Cepheids with that of a…
On the photometric signature of fast rotators
Léo Girardi, Guglielmo Costa, Yang Chen +4
Rapidly rotating stars have been recently recognized as having a major role in the interpretation of colour-magnitude diagrams of young and intermediate-age star clusters in the Ma…
Mixing by overshooting and rotation in intermediate mass stars
Guglielmo Costa, Léo Girardi, Alessandro Bressan +5
Double-line eclipsing binaries (DLEBs) have been recently used to constrain the amount of central mixing as a function of stellar mass, with contrasting results. In this work, we r…
Mode Classification in Fast-Rotating Stars using a Convolutional Neural Network: Model-Based Regular Patterns in Scuti Stars
Giovanni M. Mirouh, George C. Angelou, Daniel R. Reese +1
Oscillation modes in fast-rotating stars can be split into several subclasses, each with their own properties. To date, seismology of these stars cannot rely on regular pattern ana…