English
Related papers

Related papers: StellaR: a Package to Manage Stellar Evolution Tra…

200 papers

The evolution of star clusters is studied using N-body simulations in which the evolution of single stars and binaries are taken self-consistently into account. Initial conditions are chosen to represent relatively young Galactic open…

We present new grids of pre-main sequence (PMS) tracks for stars in the mass range 0.1 to 7.0 Msun. The computations were performed for four different metallicities (Z=0.01, 0.02, 0.03 and 0.04). A fifth table has been computed for the…

Astrophysics · Physics 2010-12-23 L. Siess , E. Dufour , M. Forestini

We present ASteCA (Automated Stellar Cluster Analysis), a suit of tools designed to fully automatize the standard tests applied on stellar clusters to determine their basic parameters. The set of functions included in the code make use of…

Astrophysics of Galaxies · Physics 2015-03-17 Gabriel I. Perren , Rubén A. Vázquez , Andrés E. Piatti

We present ELSA, a new modular software package, written in C, to analyze and manage spectroscopic data from emission-line objects. In addition to calculating plasma diagnostics and abundances from nebular emission lines, the software…

Astrophysics · Physics 2009-11-11 M. D. Johnson , J. S. Levitt , R. B. C. Henry , K. B. Kwitter

Aims: We aim at measuring mass-loss rates and the luminosities of a statistically large sample of Galactic bulge stars at several galactocentric radii. The sensitivity of previous infrared surveys of the bulge has been rather limited, thus…

Neutron stars in globular clusters follow complex evolutionary pathways shaped by binary interactions, mass transfer, and dynamical exchanges. Direct N-body simulations such as NBODY6++GPU successfully model stellar dynamics and compact…

High Energy Astrophysical Phenomena · Physics 2026-02-17 M. Rah , R. Spurzem , F. Flammini Dotti , A. Mickaelian

STARR (STAnford Research Repository) is a clinical research support ecosystem that supports basic science research, population health research and translational research at Stanford University. STARR consists of raw and analysis ready…

Databases · Computer Science 2024-12-06 SC Weber , J Pallas , G Olson , D Love , S Malunjkar , S Boosi , E Loh , S Datta , TA Ferris

The first version of the Binary Population Synthesizer (BiPoS1) is made publicly available. It allows to efficiently calculate binary distribution functions after the dynamical processing of a realistic population of binary stars during the…

Astrophysics of Galaxies · Physics 2021-11-12 J. Dabringhausen , M. Marks , P. Kroupa

Ranging from track interpolation techniques through model atmospheres to the stochastic nature of the IMF, there are many uncertainties which need to be taken into account when modelling HR diagrams or performing population synthesis,…

Astrophysics · Physics 2007-05-23 M. Cervino , D. Valls--Gabaud

The times of maximum brightness collected in the GEOS RR Lyr database allowed us to trace the period variations of a sample of 123 galactic RRab variables. These data span a time baseline exceeding 100 years. Clear evidence of period…

The proper scientific analysis of a large amount of stellar spectra requires certain capabilities of the analysing tool (e.g. precise semi-automatic fitting for normalisation of the continuum or line-list assisted measurement of spectral…

Instrumentation and Methods for Astrophysics · Physics 2011-12-14 Petr Škoda

Tracks and isochrones have been computed in the range of initial masses 0.15 - 20 Mo for a grid of 39 chemical compositions with the metal content Z between 0.0001 and 0.070, and helium content Y between 0.23 and 0.46. The Padova stellar…

Astrophysics · Physics 2009-11-13 G. Bertelli , L. Girardi , P. Marigo , E. Nasi

We substantially update the capabilities of the open-source software instrument Modules for Experiments in Stellar Astrophysics (MESA). MESA can now simultaneously evolve an interacting pair of differentially rotating stars undergoing…

Stars play a key role in the evolution of the Universe, as sources of radiation, as dynamical engines, and as chemical factories. Outputs of stellar models are then central to various studies in astrophysics. Stellar physics links…

Solar and Stellar Astrophysics · Physics 2024-09-18 P. Eggenberger

We present a large grid of stellar evolutionary tracks, which are suitable to modelling star clusters and galaxies by means of population synthesis. The tracks are presented for the initial chemical compositions [Z=0.0004, Y=0.23],…

Astrophysics · Physics 2009-05-29 Leo Girardi , Alessandro Bressan , Gianpaolo Bertelli , Cesare Chiosi

We present astroplan - an open source, open development, Astropy affiliated package for ground-based observation planning and scheduling in Python. astroplan is designed to provide efficient access to common observational quantities such as…

We present inversion techniques aiming at recovering the stellar content (age, metallicity, extinction) and kinematics of a stellar population from its absorption line spectrum. These techniques use new synthetic high resolution spectra…

Astrophysics · Physics 2007-05-23 P. Ocvirk , C. Pichon , A. Lancon

We describe a software package called VPLanet that simulates fundamental aspects of planetary system evolution over Gyr timescales, with a focus on investigating habitable worlds. In this initial release, eleven physics modules are included…

Chromatin immunoprecipitation combined with DNA microarrays (ChIP-chip) is an assay for DNA-protein-binding or post-translational chromatin/histone modifications. As with all high-throughput technologies, it requires a thorough…

Quantitative Methods · Quantitative Biology 2009-10-20 Benedikt Zacher , Achim Tresch

The evolution of irregular galaxies is examined from two points of view: on the one hand, models of galactic chemical evolution have been computed and their predictions compared with the corresponding observational data on the element…

Astrophysics · Physics 2007-05-23 M. Tosi