Mapping Stellar Helium

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Publicaciones

Stellar Cruise Control: Weakened Magnetic Braking Leads to Sustained Rapid Rotation of Old Stars

Autores: Saunders, Nicholas; van Saders, Jennifer L.; Lyttle, Alexander J.; Metcalfe, Travis S.; Li, Tanda; Davies, Guy R.; Hall, Oliver J.; Ball, Warrick H.; Townsend, Richard; Creevey, Orlagh; Dodds, Curt
Publicado en: arXiv, Edición 5, 2023, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.48550/arxiv.2309.05666

Application to TESS 2-minute photometry

Autores: Nielsen, M. B.; Hatt, E.; Chaplin, W. J.; Ball, W. H.; Davies, G. R.
Publicado en: A&A, Edición 1, 2022, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.48550/arxiv.2203.09404

Internal magnetic fields in 13 red giants detected by asteroseismology

Autores: G. Li; S. Deheuvels; T. Li; J. Ballot; F. Lignieres
Publicado en: A&A, Edición 5, 2023, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.1051/0004-6361/202347260

A probabilistic method for detecting solar-like oscillations using meaningful prior information. Application to TESS 2-minute photometry

Autores: M. B. Nielsen, E. Hatt, W. J. Chaplin, W. H. Ball, G. R. Davies
Publicado en: Astronomy & Astrophysics, Edición Volume 663, id.A51, 13 pp., 2022, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.1051/0004-6361/202243064

Age of FGK Dwarfs Observed with LAMOST and GALAH: Considering the Oxygen Enhancement

Autores: Tiancheng Sun; Zhishuai Ge; Xunzhou Chen; Shaolan Bi; Tanda Li; Xianfei Zhang; Yaguang Li; Yaqian Wu; Sarah A. Bird; J. W. Ferguson; Jianzhao Zhou; Lifei Ye; Liu Long; Jinghua Zhang
Publicado en: The AstroPhysical Journal, Edición 2, 2023, ISSN 1538-4365
Editor: IOP
DOI: 10.3847/1538-4365/ace5b0

Unveiling the Distinct Formation Pathways of the Inner and Outer Discs of the Milky Way with Bayesian Machine Learning

Autores: Ioana Ciuca; Daisuke Kawata; Andrea Miglio; Guy R. Davies; Robert J. J. Grand
Publicado en: Monthly Notices of the Royal Astronomical Society, Edición 7, 2021, ISSN 0035-8711
Editor: Blackwell Publishing Inc.
DOI: 10.48550/arxiv.2003.03316

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

Autores: 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
Publicado en: Monthly Notices of the Royal Astronomical Society, Edición 505/2, 2021, Página(s) 2427-2446, ISSN 0035-8711
Editor: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stab1368

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

Autores: 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
Publicado en: The Astronomical Journal, Edición 162/5, 2021, Página(s) 211, ISSN 0004-6256
Editor: American Astronomical Society
DOI: 10.3847/1538-3881/ac1b31

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

Autores: Minghao Du, Shaolan Bi, Xianfei Zhang, Yaguang Li, Tanda Li, Ruijie Shi
Publicado en: Monthly Notices of the Royal Astronomical Society, Edición 501/1, 2020, Página(s) 614-622, ISSN 0035-8711
Editor: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa3642

CORALIE radial-velocity search for companions around evolved stars (CASCADES). III. A new Jupiter host-star: in-depth analysis of HD 29399 using TESS data

Autores: C. Pezzotti, G. Ottoni, G. Buldgen, A. Lyttle, P. Eggenberger, S. Udry, D. Ségransan, M. Mayor, C. Lovis, M. Marmier, A. Miglio, Y. Elsworth, G.R. Davies, W.H. Ball
Publicado en: Astronomy & Astrophysics,, Edición Volume 657, id.A89, 2022, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.1051/0004-6361/202040080

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

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

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

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

TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076

Autores: Chen Jiang; Timothy R. Bedding; Timothy R. Bedding; Keivan G. Stassun; Dimitri Veras; Enrico Corsaro; Derek Buzasi; P. Mikołajczyk; Q. S. Zhang; Jian-wen Ou; Tiago L. Campante; Thaíise S. Rodrigues; Benard Nsamba; Benard Nsamba; Diego Bossini; Stephen R. Kane; Jia Mian Joel Ong; Mutlu Yildiz; Zeynep Çelik Orhan; Sibel Örtel; Tao Wu; Xinyi Zhang; Tanda Li; Tanda Li; Tanda Li; Sarbani Basu; M. S
Publicado en: The Astrophysical Journal, Edición Vol 896, number 1, 2020, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.48550/arxiv.2005.00272

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

Autores: Shao-Lan Bi, Tan-Da Li, Kang Liu, Jie Jiang, Ya-Guang Li, Jing-Hua Zhang, Xian-Fei Zhang, Ya-Qian Wu
Publicado en: Research in Astronomy and Astrophysics, Edición 21/4, 2021, Página(s) 095, ISSN 1674-4527
Editor: 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

Autores: 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
Publicado en: The Astrophysical Journal, Edición 900/2, 2020, Página(s) 154, ISSN 1538-4357
Editor: AAS
DOI: 10.3847/1538-4357/aba963

Modelling stars with Gaussian Process Regression: Augmenting Stellar Model Grid

Autores: Tanda Li; Guy R Davies; Alexander J Lyttle; Warrick H Ball; Lindsey M Carboneau; Rafael A García
Publicado en: Monthly Notices of the Royal Astronomical Society, Edición Volume 511, Edición 4, 2022, Página(s) Pages 5597–5610, ISSN 0035-8711
Editor: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stac467

Constraining the rotation profile in a low-luminosity subgiant with a surface rotation measurement

Autores: T. Wilson, A. R. Casey, I. Mandel, W. H. Ball, E. Bellinger, G. Davies
Publicado en: Monthly Notices of the Royal Astronomical Society, Edición Volume 521, Edición 3, 2023, Página(s) Pages 4122–4130, ISSN 0035-8711
Editor: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stad771

TESS Data for Asteroseismology: Light-curve Systematics Correction

Autores: Mikkel N. Lund; Rasmus Handberg; Derek Buzasi; Lindsey Carboneau; Lindsey Carboneau; Lindsey Carboneau; Oliver J. Hall; Oliver J. Hall; Oliver J. Hall; Filipe Pereira; Daniel Huber; Daniel R. Hey; Timothy Van Reeth
Publicado en: The Astrophysical Journal, Supplement Series, Edición vol. 257 , no. 2 , 53, 2021, ISSN 1538-4365
Editor: Institute of Physics
DOI: 10.3847/1538-4365/ac214a

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

Autores: 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
Publicado en: The Astronomical Journal, Edición 161/2, 2021, Página(s) 62, ISSN 1538-3881
Editor: AAS/IOP
DOI: 10.3847/1538-3881/abcd39

Systematics in asteroseismic modelling: application of a correlated noise model for oscillation frequencies

Autores: Tanda Li, Guy R. Davies, Martin Nielsen, Margarida S. Cunha, Alexander J. Lyttle
Publicado en: Monthly Notices of the Royal Astronomical Society, Edición Volume 523, Edición 1, 2023, Página(s) Pages 80–90, ISSN 0035-8711
Editor: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stad1406

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

Autores: 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
Publicado en: Astronomy & Astrophysics, Edición 645, 2021, Página(s) A85, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.1051/0004-6361/202038307

Asteroseismology of 3642 Kepler Red Giants: Correcting the Scaling Relations Based on Detailed Modeling

Autores: Tanda Li, Yaguang Li, Shaolan Bi, Timothy R. Bedding, Guy Davies, Minghao Du
Publicado en: The Astrophysical Journal, Edición Volume 927, Number 2, 2022, ISSN 0004-6256
Editor: American Astronomical Society
DOI: 10.3847/1538-4357/ac4fbf

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

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

An eclipsing brown dwarf in a hierarchical triple with two evolved stars

Autores: Lillo-Box, J.; Ribas, Á.; Montesinos, B.; Santos, N. C.; Campante, T.; Cunha, M.; Barrado, D.; Villaver, E.; Sousa, S.; Bouy, H.; Aller, A.; Corsaro, E.; Li, T.; Ong, J. M. J.; Rebollido, I.; Audenaert, J.; Pereira, F.
Publicado en: A&A, Edición 14, 2021, ISSN 0004-6361
Editor: Springer Verlag

Asteroseismology of δ Scuti stars: emulating model grids using a neural network

Autores: Owen J Scutt; Simon J Murphy; Martin B Nielsen; Guy R Davies; Timothy R Bedding; Alexander J Lyttle
Publicado en: MNRAS, Edición 5, 2023, ISSN 0035-8711
Editor: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stad2621

Revisiting the Red Giant Branch Hosts KOI-3886 and ι Draconis. Detailed Asteroseismic Modeling and Consolidated Stellar Parameters

Autores: Tiago L. Campante; Tanda Li; J. M. Joel Ong; Enrico Corsaro; Margarida S. Cunha; Timothy R. Bedding; Diego Bossini; Sylvain N. Breton; Derek L. Buzasi; William J. Chaplin; Morgan Deal; Rafael A. García; Michelle L. Hill; Marc Hon; Daniel Huber; Chen Jiang; Stephen R. Kane; Cenk Kayhan; James S. Kuszlewicz; Jorge Lillo-Box; Savita Mathur; Mário J. P. F. G. Monteiro; Filipe Pereira; Nuno C. Santos
Publicado en: Astronomical Journal, Edición 15, 2023, ISSN 1538-3881
Editor: Astronomical Journal
DOI: 10.3847/1538-3881/acc9c1

An application of principal component analysis for dimensionality reduction

Autores: M. B. Nielsen; G. R. Davies; W. J. Chaplin; W. H. Ball; J. M. J. Ong; E. Hatt; B. P. Jones; M. Logue
Publicado en: A&A, Edición 4, 2023, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.1051/0004-6361/202346086

I. Sample definition and first results: Three new planets orbiting giant stars

Autores: Pezzotti, C.; Ottoni, G.; Buldgen, G.; Lyttle, A.; Eggenberger, P.; Udry, S.; Ségransan, D.; Mayor, M.; Lovis, C.; Marmier, M.; Miglio, A.; Elsworth, Y.; Davies, G. R.; Ball, W. H.
Publicado en: A&A, Edición 4, 2022, ISSN 0004-6361
Editor: Springer Verlag

The TESS light curve of AI Phoenicis

Autores: 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
Publicado en: Monthly Notices of the Royal Astronomical Society, Edición 498/1, 2020, Página(s) 332-343, ISSN 0035-8711
Editor: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa1662

II. Seismic masses for three red giants orbited by long-period massive planets

Autores: Gaël Buldgen; G. Ottoni; C. Pezzotti; Alexander Lyttle; P. Eggenberger; Stéphane Udry; D. Segransan; Andrea Miglio; M. Mayor; C. Lovis; Yvonne Elsworth; Guy R. Davies; Warrick H. Ball
Publicado en: Astronomy and Astrophysics, Edición 3, 2022, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.1051/0004-6361/202040079

Revisiting the Red-giant Branch Hosts KOI-3886 and $ι$ Draconis. Detailed Asteroseismic Modeling and Consolidated Stellar Parameters

Autores: Campante, Tiago L.; Li, Tanda; Ong, J. M. Joel; Corsaro, Enrico; Cunha, Margarida S.; Bedding, Timothy R.; Bossini, Diego; Breton, Sylvain N.; Buzasi, Derek L.; Chaplin, William J.; Deal, Morgan; García, Rafael A.; Hill, Michelle L.; Hon, Marc; Huber, Daniel; Jiang, Chen; Kane, Stephen R.; Kayhan, Cenk; Kuszlewicz, James S.; Lillo-Box, Jorge; Mathur, Savita; Monteiro, Mário J. P. F. G.; Pereira,
Publicado en: The Astronomical Journal, Edición 2, 2023, ISSN 1538-3881
Editor: IOP
DOI: 10.48550/arxiv.2304.01570

Uncovering the ultimate planet impostor: An eclipsing brown dwarf in a hierarchical triple with two evolved stars

Autores: J. Lillo-Box, Á. Ribas, B. Montesinos, N. C. Santos, T. Campante, M. Cunha, D. Barrado, E. Villaver, S. Sousa, H. Bouy, A. Aller, E. Corsaro, T. Li, J. M. J. Ong, I. Rebollido, J. Audenaert, F. Pereira
Publicado en: Astronomy & Astrophysics, Edición Volume 653, 2021, ISSN 0004-6361
Editor: Springer Verlag
DOI: 10.1051/0004-6361/202141158

LAMOST Time-Domain Survey: First Results of four $K$2 plates

Autores: Song Wang; Hao-Tong Zhang; Zhong-Rui Bai; Hai-Long Yuan; Mao-Sheng Xiang; Bo Zhang; Wen Hou; Fang Zuo; Bing Du; Tan-Da Li; Fan Yang; Kai-Ming Cui; Yi-Lun Wang; Jiao Li; Mikhail Kovalev; Chun-Qian Li; Hao Tian; Wei-Kai Zong; Heng-Geng Han; Chao Liu; A-Li Luo; Jian-Rong Shi; Jian-Ning Fu; Shao-Lan Bi; Zhan-Wen Han; Ji-Feng Liu
Publicado en: Research in Astronomy and Astrophysics , . https://doi.org/10.1088/1674-4527/21/11/292, Edición vol. 21 , no. 11 , 292, 2021, ISSN 1674-4527
Editor: Institute of Physics
DOI: 10.48550/arxiv.2109.03149

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

Autores: Hod��i��, Vedad Kunovac; Triaud, Amaury H. M. J.; Cegla, Heather M.; Chaplin, William J.; Davies, Guy R.
Publicado en: Monthly Notices of the Royal Astronomical Society, Edición 16, 2021, ISSN 1365-2966
Editor: Monthly Notices of the Royal Astronomical Society
DOI: 10.48550/arxiv.2007.11564

Chronologically dating the early assembly of the Milky Way

Autores: 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
Publicado en: Nature Astronomy, Edición 5/7, 2021, Página(s) 640-647, ISSN 2397-3366
Editor: Nature
DOI: 10.1038/s41550-021-01347-7

Weakened magnetic braking supported by asteroseismic rotation rates of Kepler dwarfs

Autores: 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
Publicado en: Nature Astronomy, Edición 5/7, 2021, Página(s) 707-714, ISSN 2397-3366
Editor: Nature
DOI: 10.1038/s41550-021-01335-x

Hierarchically modelling stars to improve inference of stellar properties with asteroseismology

Autores: Lyttle, Alexander J.
Publicado en: PLATO Mission Conference 2021, Edición 3, 2021
Editor: Zenodo
DOI: 10.5281/zenodo.5557059

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