Results 1 to 10 of about 2,987,821 (400)

Chemical element transport in stellar evolution models [PDF]

Royal Society Open Science, 2017
Stellar evolution computations provide the foundation of several methods applied to study the evolutionary properties of stars and stellar populations, both Galactic and extragalactic.
Maurizio Salaris, Santi Cassisi
doaj   +4 more sources

Monte Carlo Simulations of Globular Cluster Evolution. V. Binary Stellar Evolution [PDF]

Astrophys.J.719:915-930,2010, 2009
We study the dynamical evolution of globular clusters containing primordial binaries, including full single and binary stellar evolution using our Monte Carlo cluster evolution code updated with an adaptation of the single and binary stellar evolution codes SSE/BSE from Hurley et. al (2000, 2002). We describe the modifications we have made to the code.
Ashman, Binney, Chatterjee, Dalessandro, Davis, Demleitner, Duquennoy, Frederic A. Rasio, Fregeau, Fregeau, Fregeau, Fregeau, Hansen, Heggie, Hurley, Hwang, John M. Fregeau, Joshi, Joshi, Kroupa, Lombardi, Merritt, Noyola, Scheepmaker, Sills, Sills, Sourav Chatterjee, Spitzer, Stefan Umbreit, Trenti, Trenti   +30 more
arxiv   +3 more sources

Is there a mass discrepancy in the Cepheid binary OGLE-LMC-CEP0227? [PDF]

, 2011
Context. The Cepheid mass discrepancy, the difference between masses predicted from stellar evolution and stellar pulsation calculations, is a challenge for the understanding of stellar astrophysics. Recent models of the eclipsing binary Cepheid OGLE-LMC-CEP-0227 have suggested that the discrepancy may be resolved. Aims.
Bono, Bono, Caputo, Cassisi, Clausen, Cox, de Jager, Dupree, Evans, Evans, Evans, Evans, Fiorentino, H. R. Neilson, Heger, Hunter, Keller, Keller, Kovtyukh, Kudritzki, Lovekin, Meynet, Morel, N. Langer, Neilson, Neilson, Pietrzyński, Pietrzyński, Romaniello, Romaniello, Sandberg Lacy, Sasselov, Sasselov, Stobie, Turner, Valle, Yoon   +36 more
arxiv   +4 more sources

Improving 1D Stellar Models with 3D Atmospheres [PDF]

EPJ Web of Conferences, 2017
Stellar evolution codes play a major role in present-day astrophysics, yet they share common issues. In this work we seek to remedy some of those by the use of results from realistic and highly detailed 3D hydrodynamical simulations of stellar ...
Mosumgaard Jakob Rørsted, Silva Aguirre Víctor, Weiss Achim, Christensen-Dalsgaard Jørgen, Trampedach Regner   +4 more
doaj   +2 more sources

The fates of massive stars: exploring uncertainties in stellar evolution with METISSE [PDF]

, 2020
In the era of advanced electromagnetic and gravitational wave detectors, it has become increasingly important to effectively combine and study the impact of stellar evolution on binaries and dynamical systems of stars. Systematic studies dedicated to exploring uncertain parameters in stellar evolution are required to account for the recent observations
P. Agrawal, J. Hurley, S. Stevenson, D. Sz'ecsi, C. Flynn   +4 more
arxiv   +3 more sources

Pulsation Period Change & Classical Cepheids: Probing the Details of Stellar Evolution [PDF]

, 2014
Measurements of secular period change probe real-time stellar evolution of classical Cepheids making these measurements powerful constraints for stellar evolution models, especially when coupled with interferometric measurements. In this work, we present stellar evolution models and measured rates of period change for two Galactic Cepheids: Polaris and
Bisol, Alexandra C., Engle, Scott, Guinan, Ed, Neilson, Hilding R.   +3 more
arxiv   +3 more sources

The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies [PDF]

Astrophys.J.699:486-506,2009, 2008
The stellar masses, mean ages, metallicities, and star formation histories of galaxies are now commonly estimated via stellar population synthesis (SPS) techniques. SPS relies on stellar evolution calculations from the main sequence to stellar death, stellar spectral libraries, phenomenological dust models, and stellar initial mass functions (IMFs ...
Abazajian, Adelman-McCarthy, Atlee, Baraffe, Bell, Bell, Bertelli, Bessell, Blanton, Blanton, Blanton, Brown, Brown, Brown, Bruzual, Bundy, Bundy, Charlie Conroy, Charlot, Charlot, Cool, Daddi, Daddi, Dotter, Drory, Duquennoy, Eisenstein, Elmegreen, Ferraro, Fioc, Girardi, Hao, Hopkins, James E. Gunn, Jarrett, Jarrett, Kalirai, Kannappan, Kriek, Lada, Lee, Lee, Lee, Lee, Li, Lin, Lucatello, Maller, Maraston, Maraston, Maraston, Martin White, Masjedi, McCrea, Pagel, Panter, Papovich, Piotto, Preston, Renzini, Rich, Sarajedini, Scalo, Scalo, Schaller, Schiavon, Shapley, Strauss, Thomas, Tinsley, Tumlinson, Tumlinson, van Dokkum, van Dokkum, Vazdekis, Worthey, Xin, Yi, Yi, Yi, York   +80 more
arxiv   +3 more sources

Planetary Nebulae as Probes of Stellar Evolution and Populations [PDF]

, 1999
Planetary Nebulae (PNe) have been used satisfactory to test the effects of stellar evolution on the Galactic chemical environment. Moreover, a link exists between nebular morphology and stellar populations and evolution. We present the latest results on Galactic PN morphology, and an extension to a distance unbiased and homogeneous sample of Large ...
A Renzini, C Charbonnel, IJr Iben, JC Blades, L Stanghellini, L Stanghellini, L Stanghellini, LB van den Hoek, M Guerrero, M Peimbert, P Leisy, S Torres-Peimbert, WE Greig, WJ Maciel, Y Terzian   +14 more
arxiv   +4 more sources

Building Blue Stragglers with Stellar Collisions [PDF]

, 2007
The evolution of stellar collision products in cluster simulations has usually been modelled using simplified prescriptions. Such prescriptions either replace the collision product with an (evolved) main sequence star, or assume that the collision product was completely mixed during the collision.
Glebbeek, E., Pols, O. R.
arxiv   +3 more sources

Uncertainties in AGB Evolution and Nucleosynthesis [PDF]

, 2016
We summarise the evolution and nucleosynthesis in AGB and Super-AGB stars. We then examine the major sources of uncertainty, especially mass-loss.
Karakas, Amanda, Lattanzio, John
arxiv   +3 more sources