中文
相关论文

相关论文: The Pisa pre-main sequence tracks and isochrones. …

200 篇论文

The last decade showed an impressive observational effort from the photometric and spectroscopic point of view for ancient stellar clusters in our Galaxy and beyond. The theoretical interpretation of these new observational results requires…

太阳与恒星天体物理 · 物理学 2013-06-06 M. Dell'Omodarme , G. Valle , S. Degl'Innocenti , P. G. Prada Moroni

Young populations at Z<Zo are being examined to understand the role of metallicity in the first phases of stellar evolution. For the analysis it is necessary to assign mass and age to Pre--Main Sequence (PMS) stars. While it is well known…

天体物理学 · 物理学 2009-11-13 Di Criscienzo , P. Ventura , F. D'Antona

We supplement recent evolutionary computations of canonical stellar models (i.e. with inefficient core overshooting) with Z=0.0002, 0.0004, 0.0006, 0.001, 0.004, 0.008 and suitable assumptions about the original He content. Evolutionary…

天体物理学 · 物理学 2007-05-23 S. Degl'Innocenti , P. Cariulo , P. G. Prada Moroni , M. Marconi

Grids of stellar models are useful tools to derive the properties of stellar clusters, in particular young clusters hosting massive stars, and to provide information on the star formation process in various mass ranges. Because of their…

太阳与恒星天体物理 · 物理学 2019-05-01 L. Haemmerlé , P. Eggenberger , S. Ekström , C. Georgy , G. Meynet , A. Postel , M. Audard , M. Sørensen , T. Fragos

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 using…

太阳与恒星天体物理 · 物理学 2016-06-01 Jieun Choi , Aaron Dotter , Charlie Conroy , Matteo Cantiello , Bill Paxton , Benjamin D. Johnson

We present the updated version of the code used to compute stellar evolutionary tracks in Padova. It is the result of a thorough revision of the major input physics, together with the inclusion of the pre-main sequence phase, not present in…

太阳与恒星天体物理 · 物理学 2015-03-20 A. Bressan , P. Marigo , L. Girardi , B. Salasnich , C. Dal Cero , S. Rubele , A. Nanni

We present dense grids of stellar models suitable for comparison with observable quantities measured with great precision, such as those derived from binary systems or planet-hosting stars. We computed new Geneva models without rotation at…

太阳与恒星天体物理 · 物理学 2015-06-03 N. Mowlavi , P. Eggenberger , G. Meynet , S. Ekstrom , C. Georgy , A. Maeder , C. Charbonnel , L. Eyer

Pre-main sequence (PMS) models provide invaluable tools for the study of star forming regions as they allow to assign masses and ages to young stars. Thus it is of primary importance to test the models against observations of PMS stars with…

太阳与恒星天体物理 · 物理学 2015-05-30 Mario Gennaro , Pier Giorgio Prada Moroni , Emanuele Tognelli

We present a preliminary theoretical seismic study of the astronomically famous star 51 Peg. This is done by first performing a detailed analysis within the Hertzsprung-Russell diagram (HRD). Using the Yale stellar evolution code (YREC), a…

天体物理学 · 物理学 2009-11-10 Eric J. Murphy , Pierre Demarque , D. B. Guenther

In this paper, we compare the currently available evolutionary tracks for Galactic massive stars. Our main goal is to highlight the uncertainties on the predicted evolutionary paths. We compute stellar evolution models with the codes MESA…

太阳与恒星天体物理 · 物理学 2015-06-17 F. Martins , A. Palacios

We present four large sets of evolutionary tracks for stars with initial chemical compositions [Y=0.250, Z=0.008], [Y=0.273, Z=0.019], [Y=0.320, Z=0.040] and [Y=0.390, Z=0.070] and enhancement of alpha elements with respect to the solar…

天体物理学 · 物理学 2007-05-23 Bernardo Salasnich , Leo Girardi , Achim Weiss , Cesare Chiosi

Stellar masses are a fundamental property to understand models of pre-main sequence evolution, but their values derived from Hertzsprung-Russell (HR) diagrams are strongly model dependent. We benchmark pre-main sequence stellar evolutionary…

Recent advancements in stellar evolution modeling offer unprecedented accuracy in predicting the evolution and deaths of stars. We present new stellar evolutionary models computed with the updated PARSEC V2.0 code for a comprehensive and…

We present the current status of an effort to create an updated grid of low-mass stellar evolution mass tracks and isochrones computed using the Dartmouth stellar evolution code. Emphasis is placed on reliably extending the present grid to…

太阳与恒星天体物理 · 物理学 2014-08-11 Gregory A. Feiden , Jaquille Jones , Brian Chaboyer

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…

天体物理学 · 物理学 2010-12-23 L. Siess , E. Dufour , M. Forestini

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 V2.0. This version includes our recent calibration of the…

太阳与恒星天体物理 · 物理学 2022-09-21 C. T. Nguyen , G. Costa , L. Girardi , G. Volpato , A. Bressan , Y. Chen , P. Marigo , X. Fu , P. Goudfrooij

We present a large and updated stellar evolution database for low-, intermediate- and high-mass stars in a wide metallicity range, suitable for studying Galactic and extragalactic simple and composite stellar populations using population…

天体物理学 · 物理学 2009-11-10 A. Pietrinferni , S. Cassisi , M. Salaris , F. Castelli

A new set of stellar models in the mass range 1.2 to 9 $M_{\odot}$ is presented. The adopted chemical compositions cover the typical galactic values, namely $0.0001 \le Z \le 0.02$ and $0.23 \le Y \le 0.28$. A comparison among the most…

天体物理学 · 物理学 2009-10-31 Inma Dominguez , Alessandro Chieffi , Marco Limongi , Oscar Straniero

Space-based photometry reveals regular high-frequency patterns in many young $\delta$ Scuti stars. These pulsations provide a powerful means of inferring stellar properties, particularly ages, for young $\delta$ Scuti stars for which…

太阳与恒星天体物理 · 物理学 2026-03-26 Anuj Gautam , Simon J. Murphy , Timothy R. Bedding

We update and expand the MESA Isochrones and Stellar Tracks (MIST) database to include variations in the alpha-capture elements, specifically [alpha/Fe]=-0.2, 0, +0.2, +0.4, and +0.6 for -3 <= [Fe/H] <= +0.5. Variations in [alpha/Fe] are…

太阳与恒星天体物理 · 物理学 2026-02-26 A Dotter , E Bauer , MJ Park , C Conroy , A Milone , M Joyce , M Cantiello
‹ 上一页 1 2 3 10 下一页 ›