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investigation of Stars In the Milky way with Bayesian statistics and Asteroseismology

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Month: December 2020

Papers

TESS Asteroseismology of α Mensae: Benchmark Ages for a G7 Dwarf and its M-dwarf Companion

Ashley Chontos, Daniel Huber, Hans Kjeldsen, Aldo M. Serenelli, Victor Silva Aguirre, Warrick H. Ball, Sarbani Basu, Timothy R. Bedding, William J. Chaplin, Zachary R. Claytor, Enrico Corsaro, Rafael A. García, Steve B. Howell, Mia S. Lundkvist, Savita Mathur, Travis S. Metcalfe, Martin B. Nielsen, Jia Mian Joel Ong, Maïssa Salama, Keivan G. Stassun, R. H. D. Townsend, Jennifer L. van Saders, Mark Winther, R. Paul Butler, C. G. Tinney, Robert A. Wittenmyer

TESS Asteroseismology of $α$ Mensae: Benchmark Ages for a G7 Dwarf and its M-dwarf Companion
See arXiv version
19 pages, 10 figures, submitted to AAS journals

Continue reading “TESS Asteroseismology of α Mensae: Benchmark Ages for a G7 Dwarf and its M-dwarf Companion” →

December 22, 2020mark, victorLeave a comment
Papers

The updated BaSTI stellar evolution models and isochrones: II. alpha-enhanced calculations

A. Pietrinferni, S.L. Hidalgo, S. Cassisi, M. Salaris, A. Savino, A. Mucciarelli, K. Verma, V. Silva Aguirre, A. Aparicio, J. Ferguson

The updated BaSTI stellar evolution models and isochrones: II. alpha-enhanced calculations
See arXiv version
24 pages, 18 figures, The Astrophysical Journal, in press

Continue reading “The updated BaSTI stellar evolution models and isochrones: II. alpha-enhanced calculations” →

December 21, 2020December 21, 2020kuldeep, victorLeave a comment
Papers

Short-term variability and mass loss in Be stars VI. Frequency groups in γ Cas detected by TESS

Jonathan Labadie-Bartz, Dietrich Baade, Alex C. Carciofi, Amanda Rubio, Thomas Rivinius, Camilla C. Borre, Christophe Martayan, Robert J. Siverd

Short-term variability and mass loss in Be stars VI. Frequency groups in $γ$ Cas detected by TESS
See arXiv version
19 pages, 11 figures. To be published in MNRAS

Continue reading “Short-term variability and mass loss in Be stars VI. Frequency groups in γ Cas detected by TESS” →

December 15, 2020camillaLeave a comment
Papers

Prospects for Galactic and stellar astrophysics with asteroseismology of giant stars in the TESS Continuous Viewing Zones and beyond

J. Ted Mackereth, Andrea Miglio, Yvonne Elsworth, Benoit Mosser, Savita Mathur, Rafael A. Garcia, Domenico Nardiello, Oliver J. Hall, Mathieu Vrard, Warrick H. Ball, Sarbani Basu, Rachael L. Beaton, Paul G. Beck, Maria Bergemann, Diego Bossini, Luca Casagrande, Tiago L. Campante, William J. Chaplin, Christina Chiappini, Léo Girardi, Andreas Christ Sølvsten Jørgensen, Saniya Khan, Josefina Montalbán, Martin B. Nielsen, Marc H. Pinsonneault, Thaíse S. Rodrigues, Aldo Serenelli, Victor Silva Aguirre, Dennis Stello, Jamie Tayar, Johanna Teske, Jennifer L. Van Seders, Emma Willett

Prospects for Galactic and stellar astrophysics with asteroseismology of giant stars in the TESS Continuous Viewing Zones and beyond
See arXiv version
15 Pages (+6 Pages Appendices), 14 Figures (+3 in Appendices). Re-submitted to MNRAS following positive initial review. Full catalogue with seismic parameters, mass and age estimates available at this https URL

Continue reading “Prospects for Galactic and stellar astrophysics with asteroseismology of giant stars in the TESS Continuous Viewing Zones and beyond” →

December 2, 2020December 2, 2020victorLeave a comment

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Recent

  • Scaling relations of convective granulation noise across the HR diagram from 3D stellar atmosphere models
  • Disc dichotomy signature in the vertical distribution of [Mg/Fe] and the delayed gas infall scenario
  • The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
  • Chemo-dynamics and asteroseismic ages of seven metal-poor red giants from the Kepler field
  • The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission

News

  • Scaling relations of convective granulation noise across the HR diagram from 3D stellar atmosphere models
  • Disc dichotomy signature in the vertical distribution of [Mg/Fe] and the delayed gas infall scenario
  • The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
  • Chemo-dynamics and asteroseismic ages of seven metal-poor red giants from the Kepler field
  • The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission

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