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32 results for “stars: rotation”
Rotating single star models for the Galaxy computed with MESA
<p>The model dataset described/employed in the paper "Boron depletion in Galactic early B-type stars reveals two different main sequence star populations" by Harim Jin , Norbert Langer, Daniel J. Lennon , and Charles R. Proffitt (2024).</p> <p> </p> <p><strong>single_star_models</strong></p> <p>A grid of rotating single star models for Z=0.0154 computed with MESA</p> <p>The models are named by their initial masses in log (in solar mass) and initial rotational velocities (in km/s).</p> <p>E.g., 1.080_200 is a 12 Msun with an initial velocity of 200 km/s.</p> <p>Initial masses: 5-40 Msun</p> <p>Initial rotational velocities: 0-600 km/s (or up to break-up)</p> <p> </p> <p><strong>MESA_input_data</strong></p> <p>MESA input data files to reproduce the single star models</p> <p>Works with MESA version of 10398 and MESA SDK version of x86_64-linux-20180822.</p>
Input files and data for paper "Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation"
<p>This entry contains input files to reproduce the results of the paper:</p> <p>Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation.</p> <p>Each zip archive corresponds to a section of the paper, and includes README files in ASCII format with a description. Raw output data and plotting tools are also provided for some of the results.</p>
The rotational shear in pre-collapse cores of massive stars
<p>MESA inlists associated with <a href="https://ui.adsabs.harvard.edu/?#abs/2018MNRAS.474.1194Z">The rotational shear in pre-collapse cores of massive stars</a></p>
Supplmental Material to Nature of Intense Magnetism and Differential Rotation In Convective Dynamos of M-Dwarf Stars With Tachoclines
<p>Inlists and source files used for the MESA model in the paper "Nature of Intense Magnetism and Differential Rotation In Convective Dynamos of M-Dwarf Stars With Tachoclines"</p> <p>This work employed MESA version 10398.</p>
Internal mixing of rotating stars inferred from dipole gravity modes
<p>MESA and GYRE inlists, opacity tables, and supplementary material for the paper "Internal mixing of rotating stars inferred from dipole gravity modes" by Pedersen et al. (2021), Nature Astronomy, Volume 5, p. 715-722, DOI:<a href="https://ui.adsabs.harvard.edu/link_gateway/2021NatAs...5..715P/doi:10.1038/s41550-021-01351-x">10.1038/s41550-021-01351-x</a></p>
ALMA detection of CO rotational line emission in red supergiant stars of the massive young star cluster RSGC1
<p>Input files and data for the MESA simulations in the paper "ALMA detection of CO rotational line emission in red supergiant stars of the massive young star cluster RSGC1". Runs where performed with version r23.05.1 of the MESA code using the MESA SDK version x86_64-linux-22.6.1. Folder named "Decin" contains the simulation with the new mass loss rate described in the paper, while the folder named NdJ contains the input files for the simulation performed with the Nieuwenhuijzen & de Jager rates.</p>
Convective Differential Rotation in Stars and Planets II: Observational and Numerical Tests - Supporting Data
<p>Contains all scripts and data used in the analysis in the paper 'Convective Differential Rotation in Stars and Planets II: Observational and Numerical Tests'. Includes inputs to and output from MESA models.</p>
Effects of Rotationally Induced Mixing in Compact Binary Systems with Low-mass Secondaries and in Single Solar-type Stars
<p>MESA inlists associated with <a href="https://ui.adsabs.harvard.edu/#abs/2012ApJ...755...95C/abstract">Chatzopoulos et al. (2012)</a>. MESA version 3647.</p> <p>Publication DOI: <a href="https://www.doi.org/10.1088/0004-637X/755/2/95">10.1088/0004-637X/755/2/95</a></p>
Internal rotation and buoyancy travel time of 60 gamma Doradus stars from uninterrupted TESS light curves spanning 352 days
<p>Description:<br> Electronic versions of Table A.1 and A.2 from the Appendix of<br> Garcia et al. (2022b), as well as all analysed g-mode period-spacing<br> patterns from this work.</p> <p>Abstract:<br> Context. Gamma Doradus (hereafter gamma Dor) stars are gravity-mode<br> pulsators whose periods carry information about the internal structure of<br> the star. These periods are especially sensitive to the internal rotation<br> and chemical mixing, two processes that are currently not well constrained<br> in the theory of stellar evolution.<br> Aims. We aim to identify the pulsation modes and deduce the internal<br> rotation and buoyancy travel time for 106 gamma Dor stars observed<br> by the TESS mission in its southern continuous viewing zone (hereafter<br> S-CVZ). We rely on 140 previously detected period-spacing patterns, that is,<br> series of (near-)consecutive pulsation mode periods.<br> Methods. We used the asymptotic expression to compute gravity-mode<br> frequencies for ranges of the rotation rate and buoyancy travel time that<br> cover the physical range in γ Dor stars. Those frequencies were fitted to<br> the observed period-spacing patterns by minimizing a custom cost function.<br> The effects of rotation were evaluated using the traditional approximation<br> of rotation, using the stellar pulsation code GYRE.<br> Results. We obtained the pulsation mode identification, internal rotation<br> and buoyancy travel time for 60 TESS gamma Dor stars. For the remaining 46<br> targets, the detected patterns are either too short or contained too many<br> missing modes for unambiguous mode identification, and longer light curves<br> are required. For the successfully analysed stars, we found that<br> period-spacing patterns from 1-yr long TESS light curves can constrain the<br> internal rotation and buoyancy travel time to a precision of 0.03 d^{−1} and<br> 400s, respectively, which is about half as precise as literature results<br> based on 4-yr Kepler light curves of gamma Dor stars.</p>
The key role of the host star's rotational history on the evolution of the planetary system - The case of TOI-849 and Kepler-444
<p>The interaction between the host star and planets has a significant</p> <p>role in shaping the evolution of the planetary system. The dissipation of</p> <p>tides and the consequent exchange of angular momentum between star and</p> <p>planets may significantly impact their orbits and modify the architecture of</p> <p>the system. The emission of high-energy stellar radiation is directly linked</p> <p>to the stellar rotation rate and its role in determining the efficiency of</p> <p>planetary atmospheric evaporation represents a key process suitable to</p> <p>explain some peculiar features observed in the population of detected</p> <p>exoplanets. In this context, the rotational history of the host star plays a</p> <p>key role. In our work, we aim at having an as detailed as possible</p> <p>characterisation of the host star of the system provided by thorough</p> <p>asteroseismic modelling (when available). Rotating models of the host star</p> <p>are then computed by accounting for a comprehensive treatment of angular</p> <p>momentum transport by hydrodynamic and magnetic instabilities. We explore a</p> <p>range of initial surface rotation rates representative of slow, medium and</p> <p>fast rotators, accounting for the degeneracy on the stellar rotational</p> <p>history. We finally study the interaction between star and planet, by</p> <p>coupling the host star model to our orbital evolution code, simultaneously</p> <p>following the impact of tides and atmospheric evaporation. We present recent</p> <p>results found in the context of the TOI-849 and Kepler-444 systems.</p>
The catalogue of "MaNGA DynPop - II. Global stellar population, gradients, and star-formation histories from integral-field spectroscopy of 10K galaxies: link with galaxy rotation, shape, and total-density gradients"
<p><strong>NOTE: Three parameters related to dust extinction ("delta_Map", "Fred_tot_Map", "Fred_gal_Map") in v1 catalogue are incorrectly saved, we have updated the catalogue in <a href="https://zenodo.org/records/15742825">https://zenodo.org/records/15742825</a> .</strong></p> <p> </p> <p>This catalogue is related to the paper "<strong>MaNGA DynPop - II. Global stellar population, gradients, and star-formation histories from integral-field spectroscopy of 10K galaxies: link with galaxy rotation, shape, and total-density gradients</strong>" by <strong>Lu et al. </strong><a href="https://ui.adsabs.harvard.edu/abs/2023MNRAS.tmp.2611L/abstract">https://ui.adsabs.harvard.edu/abs/2023MNRAS.tmp.2611L/abstract</a>. In this paper, we analyze the stellar population properties and star formation histories for over 10,000 MaNGA galaxies.</p> <p>Below are the descriptions of the files: </p> <ul> <li><strong>DynPop2_SPSFH_v1.hdf5 </strong>A HDF5 file containing the catalogue.</li> <li><strong>HDF5_reading_script.py</strong> A Python script to read the catalogue from the HDF5 file.</li> <li><strong>SP_catalog_explanation.pdf</strong> The data explanations for the catalogue, also see Table B1 in the paper. </li> </ul>
No anti-solar: Solar-type stars always have solar-like differential rotation
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