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

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Month: May 2018

Papers

Signatures of magnetic activity in the seismic data of solar-type stars observed by Kepler

A. R. G. Santos, T. L. Campante, W. J. Chaplin, M. S. Cunha, M. N. Lund, R. Kiefer, D. Salabert, R. A. Garcia, G. R. Davies, Y Elsworth, R. Howe

Signatures of magnetic activity in the seismic data of solar-type stars observed by Kepler
See arXiv version
Accepted for publication in ApJS, 19(+86) pages, 11(+89) figures, 2(+87) tables

Continue reading “Signatures of magnetic activity in the seismic data of solar-type stars observed by Kepler” →

May 31, 2018July 15, 2018mikkelLeave a comment
Papers

Stellar models with calibrated convection and temperature stratification from 3D hydrodynamics simulations

Jakob Rørsted Mosumgaard, Warrick H. Ball, Víctor Silva Aguirre, Achim Weiss, Jørgen Christensen-Dalsgaard

Stellar models with calibrated convection and temperature stratification from 3D hydrodynamics simulations
See arXiv version
10 pages, 9 figures. Accepted for publication in MNRAS

Continue reading “Stellar models with calibrated convection and temperature stratification from 3D hydrodynamics simulations” →

May 31, 2018July 15, 2018jakob, victorLeave a comment
Papers

Is the IMF in ellipticals bottom-heavy? Clues from their chemical abundances

C. De Masi, F. Vincenzo, F. Matteucci, G. Rosani, La Barbera, A. Pasquali, E. Spitoni

Is the IMF in ellipticals bottom-heavy? Clues from their chemical abundances
See arXiv version
24 pages, 25 figures, accepted for publication on MNRAS

Continue reading “Is the IMF in ellipticals bottom-heavy? Clues from their chemical abundances” →

May 17, 2018February 2, 2019emanueleLeave a comment
Papers

Inference of stellar parameters from brightness variations

Melissa K. Ness, Victor Silva Aguirre, Mikkel N. Lund, Matteo Cantiello, Daniel Foreman-Mackey, David W. Hogg, Ruth Angus

Inference of stellar parameters from brightness variations
See arXiv version
10 pages, 7 Figures, submitted to ApJ

Continue reading “Inference of stellar parameters from brightness variations” →

May 11, 2018July 15, 2018mikkel, victorLeave a comment
Papers

HD 89345: a bright oscillating star hosting a transiting warm Saturn-sized planet observed by K2

V. Van Eylen, F. Dai, S. Mathur, D. Gandolfi, S. Albrecht, M. Fridlund, R. A. García, E. Guenther, M. Hjorth, A. B. Justesen, J. Livingston, M. N. Lund, F. Pérez Hernández, J. Prieto-Arranz, C. Regulo, L. Bugnet, M. E. Everett, T. Hirano, D. Nespral, G. Nowak, E. Palle, V. Silva Aguirre, T. Trifonov, J. N. Winn, O. Barragán, P. G. Beck, W. J. Chaplin, W. D. Cochran, S. Csizmadia, H. Deeg, M. Endl, P. Heeren, S. Grziwa, A. P. Hatzes, D. Hidalgo, J. Korth, S. Mathis, P. Montañes Rodriguez, N. Narita, M. Patzold, C. M. Persson, F. Rodler, A. M. S. Smith

HD 89345: a bright oscillating star hosting a transiting warm Saturn-sized planet observed by K2
See arXiv version
Submitted to MNRAS on 23 February 2018, accepted for publication, 4 May 2018

Continue reading “HD 89345: a bright oscillating star hosting a transiting warm Saturn-sized planet observed by K2” →

May 4, 2018July 15, 2018mikkel, victorLeave a comment
Announcements

Emanuele Spitoni joins iSIMBA

Emanuele Spitoni joins SAC and the iSIMBA group on 1 May 2018.

Emanuele is an expert in chemical evolution models of the Galaxy, and will perform comparisons between the predictions of these models and the properties of stellar populations as determined from asteroseismology.

Read more about Emanuele: People

May 1, 2018July 4, 2018Leave 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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