G
George B. Lansbury
Researcher at European Southern Observatory
Publications - 96
Citations - 3636
George B. Lansbury is an academic researcher from European Southern Observatory. The author has contributed to research in topics: Active galactic nucleus & Quasar. The author has an hindex of 34, co-authored 91 publications receiving 3193 citations. Previous affiliations of George B. Lansbury include Durham University & University of Cambridge.
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Journal ArticleDOI
The AllWISE motion survey and the quest for cold subdwarfs.
J. Davy Kirkpatrick,Adam C. Schneider,Sergio Fajardo-Acosta,Christopher R. Gelino,Gregory N. Mace,Edward L. Wright,Sarah E. Logsdon,Ian S. McLean,Michael C. Cushing,Michael F. Skrutskie,Peter R. Eisenhardt,Daniel Stern,Mislav Baloković,Adam J. Burgasser,Jacqueline K. Faherty,George B. Lansbury,Jeffrey A. Rich,N. Skrzypek,John W. Fowler,Roc M. Cutri,Frank J. Masci,Tim Conrow,Carl J. Grillmair,H. McCallon,Charles A. Beichman,Kenneth A. Marsh +25 more
TL;DR: The AllWISE processing pipeline has measured motions for all objects detected on Wide-Field Infrared Survey Explorer (WISE) images taken between 2010 January and 2011 February as mentioned in this paper.
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A NEW POPULATION OF COMPTON-THICK AGNs IDENTIFIED USING THE SPECTRAL CURVATURE ABOVE 10 keV
Michael Koss,Michael Koss,Roberto J. Assef,Mislav Baloković,D. Stern,Poshak Gandhi,Isabella Lamperti,David M. Alexander,David R. Ballantyne,Franz E. Bauer,Franz E. Bauer,Simon Berney,W. N. Brandt,Andrea Comastri,N. Gehrels,Fiona A. Harrison,George B. Lansbury,C. B. Markwardt,Claudio Ricci,E. Rivers,Kevin Schawinski,Benny Trakhtenbrot,Ezequiel Treister,C. Megan Urry +23 more
TL;DR: In this paper, the spectral curvature (SC) was used to identify Compton-thick active galactic nuclei (AGNs) in low-quality Swift/Burst Alert Telescope (BAT) X-ray data.
Journal ArticleDOI
THE NuSTAR VIEW OF NEARBY COMPTON-THICK ACTIVE GALACTIC NUCLEI: THE CASES OF NGC 424, NGC 1320, AND IC 2560
Mislav Baloković,Andrea Comastri,Fiona A. Harrison,David M. Alexander,David R. Ballantyne,Franz E. Bauer,Franz E. Bauer,S. E. Boggs,W. N. Brandt,Murray Brightman,Finn Erland Christensen,Walter Craig,Walter Craig,A. Del Moro,Poshak Gandhi,C. J. Hailey,Michael Koss,Michael Koss,George B. Lansbury,B. Luo,G. M. Madejski,Andrea Marinucci,Giorgio Matt,C. B. Markwardt,Simonetta Puccetti,Christopher S. Reynolds,Guido Risaliti,Guido Risaliti,E. Rivers,D. Stern,Dominic J. Walton,W. W. Zhang +31 more
TL;DR: In this article, X-ray spectral analyses for three Seyfert 2 active galactic nuclei (AGNs), NGC 424, NGC 1320, and IC 2560, observed by NuSTAR in the 3-79 keV band, were presented.
Journal ArticleDOI
The NuSTAR Extragalactic Survey: A First Sensitive Look at the High-energy Cosmic X-Ray Background Population
David M. Alexander,D. Stern,A. Del Moro,George B. Lansbury,Roberto J. Assef,James Aird,Marco Ajello,David R. Ballantyne,Franz E. Bauer,S. E. Boggs,W. N. Brandt,Finn Erland Christensen,F. Civano,Andrea Comastri,W. W. Craig,Martin Elvis,Brian W. Grefenstette,C. J. Hailey,Fiona A. Harrison,Ryan C. Hickox,B. Luo,K. K. Madsen,James Mullaney,M. Perri,Simonetta Puccetti,Cristian Saez,Ezequiel Treister,C. M. Urry,W. W. Zhang,Carrie Bridge,Peter Eisenhardt,Anthony H. Gonzalez,Sarah H. Miller,Chao-Wei Tsai +33 more
TL;DR: In this article, the authors report on the first 10 identifications of sources serendipitously detected by the Nuclear Spectroscopic Telescope Array (NuSTAR) to provide the first sensitive census of the cosmic X-ray background source population at ≳10 keV.
Journal ArticleDOI
A New Population of Compton-Thick AGN Identified Using the Spectral Curvature Above 10 keV
Michael Koss,Roberto J. Assef,Mislav Baloković,D. Stern,Poshak Gandhi,Isabella Lamperti,David M. Alexander,David R. Ballantyne,Franz E. Bauer,Simon Berney,W. N. Brandt,Andrea Comastri,N. Gehrels,Fiona A. Harrison,George B. Lansbury,C. B. Markwardt,Claudio Ricci,E. Rivers,Kevin Schawinski,E. Treister,C. Megan Urry +20 more
TL;DR: In this paper, the spectral curvature (SC) was used to identify Compton-thick AGN in low-quality Swift BAT X-ray data using NuSTAR, and the results showed that a higher fraction of these AGN are in the final merger stage than typical BAT AGN.