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Mapping Stellar Helium

Deliverables

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Publications

Age dating of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi

Author(s): William J. Chaplin, Aldo M. Serenelli, Andrea Miglio, Thierry Morel, J. Ted Mackereth, Fiorenzo Vincenzo, Hans Kjeldsen, Sarbani Basu, Warrick H. Ball, Amalie Stokholm, Kuldeep Verma, Jakob Rørsted Mosumgaard, Victor Silva Aguirre, Anwesh Mazumdar, Pritesh Ranadive, H. M. Antia, Yveline Lebreton, Joel Ong, Thierry Appourchaux, Timothy R. Bedding, Jørgen Christensen-Dalsgaard, Orlagh Creevey, Raf
Published in: Nature Astronomy, 4/4, 2020, Page(s) 382-389, ISSN 2397-3366
Publisher: Nature
DOI: 10.1038/s41550-019-0975-9

Hierarchically modelling Kepler dwarfs and subgiants to improve inference of stellar properties with asteroseismology

Author(s): Alexander J Lyttle, Guy R Davies, Tanda Li, Lindsey M Carboneau, Ho-Hin Leung, Harry Westwood, William J Chaplin, Oliver J Hall, Daniel Huber, Martin B Nielsen, Sarbani Basu, Rafael A García
Published in: Monthly Notices of the Royal Astronomical Society, 505/2, 2021, Page(s) 2427-2446, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stab1368

Asteroseismology of iota Draconis and Discovery of an Additional Long-period Companion

Author(s): Michelle L. Hill, Stephen R. Kane, Tiago L. Campante, Zhexing Li, Paul A. Dalba, Timothy D. Brandt, Timothy R. White, Benjamin J. S. Pope, Keivan G. Stassun, Benjamin J. Fulton, Enrico Corsaro, Tanda Li, J. M. Joel Ong, Timothy R. Bedding, Diego Bossini, Derek L. Buzasi, William J. Chaplin, Margarida S. Cunha, Rafael A. García, Sylvain N. Breton, Marc Hon, Daniel Huber, Chen Jiang, Cenk Kayhan, J
Published in: The Astronomical Journal, 162/5, 2021, Page(s) 211, ISSN 0004-6256
Publisher: American Astronomical Society
DOI: 10.3847/1538-3881/ac1b31

Mode angular degree identification in subgiant stars with convolutional neural networks based on power spectrum

Author(s): Minghao Du, Shaolan Bi, Xianfei Zhang, Yaguang Li, Tanda Li, Ruijie Shi
Published in: Monthly Notices of the Royal Astronomical Society, 501/1, 2020, Page(s) 614-622, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa3642

Orbital misalignment of the super-Earth π Men c with the spin of its star

Author(s): Vedad Kunovac Hodžić, Amaury H M J Triaud, Heather M Cegla, William J Chaplin, Guy R Davies
Published in: Monthly Notices of the Royal Astronomical Society, 502/2, 2021, Page(s) 2893-2911, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stab237

Asteroseismology of 36 Kepler subgiants – II. Determining ages from detailed modelling

Author(s): Tanda Li, Timothy R Bedding, Jørgen Christensen-Dalsgaard, Dennis Stello, Yaguang Li, Matthew A Keen
Published in: Monthly Notices of the Royal Astronomical Society, 495/3, 2020, Page(s) 3431-3462, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa1350

Variations of helioseismic parameters due to magnetic field generated by a flux transport model

Author(s): Shao-Lan Bi, Tan-Da Li, Kang Liu, Jie Jiang, Ya-Guang Li, Jing-Hua Zhang, Xian-Fei Zhang, Ya-Qian Wu
Published in: Research in Astronomy and Astrophysics, 21/4, 2021, Page(s) 095, ISSN 1674-4527
Publisher: Institute of Physics
DOI: 10.1088/1674-4527/21/4/95

The Evolution of Rotation and Magnetic Activity in 94 Aqr Aa from Asteroseismology with TESS

Author(s): Travis S. Metcalfe, Jennifer L. van Saders, Sarbani Basu, Derek Buzasi, William J. Chaplin, Ricky Egeland, Rafael A. Garcia, Patrick Gaulme, Daniel Huber, Timo Reinhold, Hannah Schunker, Keivan G. Stassun, Thierry Appourchaux, Warrick H. Ball, Timothy R. Bedding, Sébastien Deheuvels, Lucía González-Cuesta, Rasmus Handberg, Antonio Jiménez, Hans Kjeldsen, Tanda Li, Mikkel N. Lund, Savita Mathur
Published in: The Astrophysical Journal, 900/2, 2020, Page(s) 154, ISSN 1538-4357
Publisher: AAS
DOI: 10.3847/1538-4357/aba963

PBjam: A Python Package for Automating Asteroseismology of Solar-like Oscillators

Author(s): M. B. Nielsen, G. R. Davies, W. H. Ball, A. J. Lyttle, T. Li, O. J. Hall, W. J. Chaplin, P. Gaulme, L. Carboneau, J. M. J. Ong, R. A. García, B. Mosser, I. W. Roxburgh, E. Corsaro, O. Benomar, A. Moya, M. N. Lund
Published in: The Astronomical Journal, 161/2, 2021, Page(s) 62, ISSN 1538-3881
Publisher: AAS/IOP
DOI: 10.3847/1538-3881/abcd39

Age dissection of the Milky Way discs: Red giants in the Kepler field

Author(s): A. Miglio, C. Chiappini, J. T. Mackereth, G. R. Davies, K. Brogaard, L. Casagrande, W. J. Chaplin, L. Girardi, D. Kawata, S. Khan, R. Izzard, J. Montalbán, B. Mosser, F. Vincenzo, D. Bossini, A. Noels, T. Rodrigues, M. Valentini, I. Mandel
Published in: Astronomy & Astrophysics, 645, 2021, Page(s) A85, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202038307

A binary with a δ Scuti star and an oscillating red giant: orbit and asteroseismology of KIC 9773821

Author(s): Simon J Murphy, Tanda Li, Sanjay Sekaran, Timothy R Bedding, Jie Yu, Andrew Tkachenko, Isabel Colman, Daniel Huber, Daniel Hey, Tinatin Baratashvili, Soetkin Janssens
Published in: Monthly Notices of the Royal Astronomical Society, 505/2, 2021, Page(s) 2336-2348, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stab1436

The TESS light curve of AI Phoenicis

Author(s): P F L Maxted, Patrick Gaulme, D Graczyk, K G Hełminiak, C Johnston, Jerome A Orosz, Andrej Prša, John Southworth, Guillermo Torres, Guy R Davies, Warrick Ball, William J Chaplin
Published in: Monthly Notices of the Royal Astronomical Society, 498/1, 2020, Page(s) 332-343, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa1662

Chronologically dating the early assembly of the Milky Way

Author(s): Josefina Montalbán, J. Ted Mackereth, Andrea Miglio, Fiorenzo Vincenzo, Cristina Chiappini, Gael Buldgen, Benoît Mosser, Arlette Noels, Richard Scuflaire, Mathieu Vrard, Emma Willett, Guy R. Davies, Oliver J. Hall, Martin Bo Nielsen, Saniya Khan, Ben M. Rendle, Walter E. van Rossem, Jason W. Ferguson, William J. Chaplin
Published in: Nature Astronomy, 5/7, 2021, Page(s) 640-647, ISSN 2397-3366
Publisher: Nature
DOI: 10.1038/s41550-021-01347-7

Weakened magnetic braking supported by asteroseismic rotation rates of Kepler dwarfs

Author(s): Oliver J. Hall, Guy R. Davies, Jennifer van Saders, Martin B. Nielsen, Mikkel N. Lund, William J. Chaplin, Rafael A. García, Louis Amard, Angela A. Breimann, Saniya Khan, Victor See, Jamie Tayar
Published in: Nature Astronomy, 5/7, 2021, Page(s) 707-714, ISSN 2397-3366
Publisher: Nature
DOI: 10.1038/s41550-021-01335-x