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Ian R. Stevens
Researcher at University of Birmingham
Publications - 223
Citations - 7433
Ian R. Stevens is an academic researcher from University of Birmingham. The author has contributed to research in topics: Stars & Luminosity. The author has an hindex of 45, co-authored 215 publications receiving 7174 citations. Previous affiliations of Ian R. Stevens include University of Cambridge & University of Liège.
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Colliding Winds from Early-Type Stars in Binary Systems
TL;DR: In this article, a 2D hydrodynamics code was proposed to model the dynamics of the wind and shock structure formed by the collision in early-type binary systems, which self-consistently accounts for radiative cooling and represents a significant improvement over previous attempts to model these systems.
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Starburst-driven galactic winds — I. Energetics and intrinsic X-ray emission
TL;DR: In this article, the authors performed an extensive hydrodynamical parameter study of starburst-driven galactic winds, motivated by the latest observation data on the best-studied starburst galaxy M82.
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Ensemble Asteroseismology of Solar-Type Stars with the NASA Kepler Mission
William J. Chaplin,Hans Kjeldsen,Jørgen Christensen-Dalsgaard,Sarbani Basu,Andrea Miglio,T. Appourchaux,Timothy R. Bedding,Yvonne Elsworth,Rafael A. García,Ronald L. Gilliland,L. Girardi,G. Houdek,Christoffer Karoff,S. D. Kawaler,Travis S. Metcalfe,Joanna Molenda-Żakowicz,Mário J. P. F. G. Monteiro,Michael Thompson,Graham A. Verner,Jérôme Ballot,Alfio Bonanno,I. M. Brandão,A.-M. Broomhall,H. Bruntt,Tiago L. Campante,Enrico Corsaro,Orlagh Creevey,Orlagh Creevey,G. Doğan,L. Esch,Ning Gai,Patrick Gaulme,Steven J. Hale,Rasmus Handberg,Saskia Hekker,Daniel Huber,Antonio Jiménez,Antonio Jiménez,Savita Mathur,Anwesh Mazumdar,B. Mosser,Roger New,Marc H. Pinsonneault,D. Pricopi,P.-O. Quirion,Clara Régulo,Clara Régulo,D. Salabert,D. Salabert,Aldo Serenelli,V. Silva Aguirre,S. G. Sousa,Dennis Stello,Ian R. Stevens,M. D. Suran,K. Uytterhoeven,Timothy R. White,William J. Borucki,Timothy M. Brown,Jon M. Jenkins,Karen Kinemuchi,J. Van Cleve,Todd C. Klaus +62 more
TL;DR: It is found that the distribution of observed masses of these stars shows intriguing differences to predictions from models of synthetic stellar populations in the Galaxy.
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Solar-like Oscillations in Low-luminosity Red Giants: First Results from Kepler
Timothy R. Bedding,Daniel Huber,Dennis Stello,Yvonne Elsworth,Saskia Hekker,Thomas Kallinger,Thomas Kallinger,Savita Mathur,Benoit Mosser,H. L. Preston,Jérôme Ballot,C. Barban,Anne-Marie Broomhall,Derek Buzasi,William J. Chaplin,Rafael A. García,Michael Gruberbauer,Steven J. Hale,J. De Ridder,Søren Frandsen,William J. Borucki,Timothy Brown,Jørgen Christensen-Dalsgaard,Ronald L. Gilliland,Jon M. Jenkins,Hans Kjeldsen,David G. Koch,Kevin Belkacem,Lars Bildsten,Hans Bruntt,Hans Bruntt,Tiago L. Campante,Tiago L. Campante,S. Deheuvels,Aliz Derekas,Aliz Derekas,Marc-Antoine Dupret,Marie-Jo Goupil,Artie P. Hatzes,Günter Houdek,Michael J. Ireland,Chen Jiang,Christoffer Karoff,László L. Kiss,László L. Kiss,Yveline Lebreton,Andrea Miglio,Josefina Montalbán,Alfred F. Noels,Ian W. Roxburgh,Vinothini Sangaralingam,Ian R. Stevens,M. D. Suran,N. J. Tarrant,Achim Weiss +54 more
TL;DR: In this paper, the authors measured solar-like oscillations in red giants using time-series photometry from the first 34 days of science operations of the Kepler Mission and found a strong correlation between the large separation of the oscillations and the frequency of maximum power (νmax).
Journal ArticleDOI
The Asteroseismic potential of Kepler : first results for solar-type stars
William J. Chaplin,Thierry Appourchaux,Yvonne Elsworth,Rafael A. García,G. Houdek,Christoffer Karoff,Travis S. Metcalfe,Joanna Molenda-Żakowicz,Mário J. P. F. G. Monteiro,Michael Thompson,Timothy M. Brown,Jørgen Christensen-Dalsgaard,R. L. Gilliland,Hans Kjeldsen,William J. Borucki,David G. Koch,Jon M. Jenkins,Jon M. Jenkins,Jérôme Ballot,Sarbani Basu,Michael Bazot,Timothy R. Bedding,O. Benomar,Alfio Bonanno,I. M. Brandão,H. Bruntt,Tiago L. Campante,Orlagh Creevey,M. Di Mauro,G. Doğan,S. Dreizler,Patrick Eggenberger,L. Esch,Stephen T. Fletcher,S. Frandsen,N. Gai,Patrick Gaulme,Rasmus Handberg,Saskia Hekker,Roger T. Howe,Daniel Huber,S. G. Korzennik,J. C. Lebrun,Silvio Leccia,M. Martic,Savita Mathur,B. Mosser,Roger New,P.-O. Quirion,C. Régulo,Ian W. Roxburgh,D. Salabert,Jesper Schou,S. G. Sousa,Dennis Stello,Graham A. Verner,Torben Arentoft,Caroline Barban,Kevin Belkacem,S. Benatti,Katia Biazzo,P. Boumier,Paul A. Bradley,Anne-Marie Broomhall,Derek Buzasi,Riccardo Claudi,Margarida S. Cunha,F. D'Antona,Sébastien Deheuvels,Aliz Derekas,A. García Hernández,M. S. Giampapa,J. M. Goupil,M. Gruberbauer,Joyce A. Guzik,Steven J. Hale,Michael J. Ireland,László L. Kiss,I. N. Kitiashvili,Katrien Kolenberg,Heidi Korhonen,Alexander G. Kosovichev,Friedrich Kupka,Yveline Lebreton,B. Leroy,H.-G. Ludwig,Stéphane Mathis,E. Michel,Andrea Miglio,Josefina Montalbán,A. Moya,Arlette Noels,Robert W. Noyes,Pere L. Palle,L. Piau,H. L. Preston,T. Roca Cortés,Markus Roth,K. H. Sato,J. H. M. M. Schmitt,Aldo Serenelli,V. Silva Aguirre,Ian R. Stevens,Juan Carlos Suárez,M. D. Suran,R. Trampedach,Sylvaine Turck-Chièze,K. Uytterhoeven,Rita Ventura,Paul Wilson +109 more
TL;DR: In this article, preliminary asteroseismic results from Kepler on three G-type stars are presented, made at one-minute cadence during the first 33.5 days of science operations, reveal high signal-to-noise solar-like oscillation spectra in all three stars: about 20 modes of oscillation may be clearly distinguished in each star.