Stellar evolution ≈ Stellar evolution
View article
MESA ISOCHRONES AND STELLAR TRACKS (MIST). I. SOLAR-SCALED MODELS Open
This is the first of a series of papers presenting the Modules for Experiments in Stellar Astrophysics (MESA) Isochrones and Stellar Tracks (MIST) project, a new comprehensive set of stellar evolutionary tracks and isochrones computed usin…
View article
MESA ISOCHRONES AND STELLAR TRACKS (MIST) 0: METHODS FOR THE CONSTRUCTION OF STELLAR ISOCHRONES Open
I describe a method to transform a set of stellar evolution tracks onto a uniform basis and then interpolate within that basis to construct stellar isochrones. This method accommodates a broad range of stellar types, from substellar object…
View article
Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation Open
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics ( MESA ). RSP is a new functionality in MESAstar that models the nonlinear radial stellar pulsations that characterize RR …
View article
A NEW GENERATION OF PARSEC-COLIBRI STELLAR ISOCHRONES INCLUDING THE TP-AGB PHASE Open
We introduce a new generation of PARSEC – COLIBRI stellar isochrones that includes a detailed treatment of the thermally pulsing asymptotic giant branch (TP-AGB) phase, covering a wide range of initial metallicities (0.0001 < Z i < 0.06). …
View article
Comprehensive analytic formulae for stellar evolution as a function of mass and metallicity Open
We present analytic formulae that approximate the evolution of stars for a wide range of mass M and metallicity Z. Stellar luminosity, radius and core mass are given as a function of age, M and Z, for all phases from the zero-age main sequ…
View article
<i>Gaia</i> Data Release 2 Open
Context. Gaia Data Release 2 provides high-precision astrometry and three-band photometry for about 1.3 billion sources over the full sky. The precision, accuracy, and homogeneity of both astrometry and photometry are unprecedented. Aims. …
View article
Pulsational Pair-instability Supernovae Open
The final evolution of stars in the mass range 70–140 is explored. Depending upon their mass loss history and rotation rates, these stars will end their lives as pulsational pair-instability supernovae (PPISN) producing a great variety of …
View article
The Origin of Elements from Carbon to Uranium Open
To reach a deeper understanding of the origin of elements in the periodic table, we construct Galactic chemical evolution (GCE) models for all stable elements from C ( A = 12) to U ( A = 238) from first principles, i.e., using theoretical …
View article
Multiple Stellar Populations in Globular Clusters Open
Globular clusters (GCs) exhibit star-to-star variations in specific elements (e.g., He, C, N, O, Na, Al) that bear the hallmark of high-temperature H-burning. These abundance variations can be observed spectroscopically and also photometri…
View article
Binary black hole mergers from globular clusters: Masses, merger rates, and the impact of stellar evolution Open
The recent discovery of GW150914, the binary black hole merger detected by Advanced LIGO, has the potential to revolutionize observational astrophysics. But to fully utilize this new window into the universe, we must compare these new obse…
View article
Re-evaluating old stellar populations Open
Determining the properties of old stellar populations (those with age >1 Gyr) has long involved the comparison of their integrated light, either in the form of photometry or spectroscopic indexes, with empirical or synthetic templates. Her…
View article
Merging binary black holes formed through chemically homogeneous evolution in short-period stellar binaries Open
We explore a newly proposed channel to create binary black holes of stellar origin. This scenario applies to massive, tight binaries where mixing induced by rotation and tides transports the products of hydrogen burning throughout the stel…
View article
Progenitors of gravitational wave mergers: binary evolution with the stellar grid-based code ComBinE Open
The first gravitational wave detections of mergers between black holes and\nneutron stars represent a remarkable new regime of high-energy transient\nastrophysics. The signals observed with LIGO-Virgo detectors come from mergers\nof extrem…
View article
Slowing the spins of stellar cores Open
The angular momentum (AM) evolution of stellar interiors, along with the resulting rotation rates of stellar remnants, remains poorly understood. Asteroseismic measurements of red giant stars reveal that their cores rotate much faster than…
View article
Chemical evolution with rotating massive star yields – I. The solar neighbourhood and the s-process elements Open
We present a comprehensive study of the abundance evolution of the elements\nfrom H to U in the Milky Way halo and local disk. We use a consistent chemical\nevolution model, metallicity dependent isotopic yields from low and\nintermediate …
View article
New models for the evolution of post-asymptotic giant branch stars and central stars of planetary nebulae Open
Context. The post-asymptotic giant branch (AGB) phase is arguably one of the least understood phases of the evolution of low- and intermediate- mass stars. The two grids of models presently available are based on outdated micro- and macrop…
View article
Gaia Data Release 2. Observational Hertzsprung-Russell diagrams Open
[Abstract] Context. Gaia Data Release 2 provides high-precision astrometry and three-band photometry for about 1.3 billion sources over the full sky. The precision, accuracy, and homogeneity of both astrometry and photometry are unpreceden…
View article
Magnetic inhibition of convection and the fundamental properties of low-mass stars Open
When determining absolute ages of identifiably young stellar populations,\nresults strongly depend on which stars are studied. Cooler (K, M) stars\ntypically yield ages that are systematically younger than warmer (A, F, G)\nstars by a fact…
View article
Massive black hole binaries from runaway collisions: the impact of metallicity Open
The runaway collision scenario is one of the most promising mechanisms to explain the formation of intermediate-mass black holes (IMBHs) in young dense star clusters. On the other hand, the massive stars that participate in the runaway col…
View article
Merging black hole binaries with the SEVN code Open
Studying the formation and evolution of black hole binaries (BHBs) is\nessential for the interpretation of current and forthcoming gravitational wave\n(GW) detections. We investigate the statistics of BHBs that form from isolated\nbinaries…
View article
The overarching framework of core-collapse supernova explosions as revealed by 3D <span>fornax</span> simulations Open
We have conducted 19 state-of-the-art 3D core-collapse supernova simulations spanning a broad range of progenitor masses. This is the largest collection of sophisticated 3D supernova simulations ever performed. We have found that while the…
View article
Supernova simulations from a 3D progenitor model – Impact of perturbations and evolution of explosion properties Open
We study the impact of large-scale perturbations from convective shell\nburning on the core-collapse supernova explosion mechanism using\nthree-dimensional (3D) multi-group neutrino hydrodynamics simulations of an 18\nsolar mass progenitor…
View article
The dragon simulations: globular cluster evolution with a million stars Open
Introducing the dragon simulation project, we present direct N-body simulations of four massive globular clusters (GCs) with 106 stars and 5 per cent primordial binaries at a high level of accuracy and realism. The GC evolution is computed…
View article
Red giant masses and ages derived from carbon and nitrogen abundances Open
We show that the masses of red giant stars can be well predicted from their photospheric carbon and nitrogen abundances, in conjunction with their spectroscopic stellar labels log g, Teff, and [Fe/H]. This is qualitatively expected from ma…
View article
Massive runaway and walkaway stars Open
We perform an extensive numerical study of the evolution of massive binary systems to predict the peculiar velocities that stars obtain when their companion collapses and disrupts the system. Our aim is to (i) identify which predictions ar…
View article
Pre-supernova outbursts via wave heating in massive stars – I. Red supergiants Open
Early observations of supernovae (SNe) indicate that enhanced mass-loss and pre-SN outbursts may occur in progenitors of many types of SNe. We investigate the role of energy transport via waves driven by vigorous convection during late-sta…
View article
The active lives of stars: A complete description of the rotation and XUV evolution of F, G, K, and M dwarfs Open
Aims. We study the evolution of the rotation and the high energy X-ray, extreme ultraviolet (EUV), and Ly- α emission for F, G, K, and M dwarfs, with masses between 0.1 and 1.2 M ⊙ , and provide a freely available set of evolutionary track…
View article
Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud Open
The thermally-pulsing asymptotic giant branch (TP-AGB) experienced by low- andintermediate-mass stars is one of the most uncertain phases of stellar evolution and themodels need to be calibrated with the aid of observations. To this purpos…
View article
Concurrent formation of supermassive stars and globular clusters: implications for early self-enrichment Open
\n Contains fulltext :\n 193996.pdf (Publisher’s version ) (Open Access)\n
View article
Three-dimensional simulations of neutrino-driven core-collapse supernovae from low-mass single and binary star progenitors Open
We present a suite of seven 3D supernova simulations of non-rotating low-mass progenitors using multigroup neutrino transport. Our simulations cover single star progenitors with zero-age main-sequence masses between 9.6 and 12.5 M-circle d…