A
Alan Fitzsimmons
Researcher at Queen's University Belfast
Publications - 250
Citations - 10001
Alan Fitzsimmons is an academic researcher from Queen's University Belfast. The author has contributed to research in topics: Comet & Asteroid. The author has an hindex of 48, co-authored 238 publications receiving 9171 citations. Previous affiliations of Alan Fitzsimmons include Queen's University & Queen Mary University of London.
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Journal ArticleDOI
The slow-moving objects 1993 SB and 1993 SC.
TL;DR: The results of a search that was carried out in September 1993 for slow moving objects in the Solar System that may be potential members of the Kuiper belt of comets are reported in this article.
The Influence of Global-Selfheating on the Yarkovsky and YORP Effects
Benjamin Rozitis,S. F. Green,S. R. Duddy,Alan Fitzsimmons,Michael D. Hicks,S. C. Lowry,Colin Snodgrass,Paul R. Weissman,S. D. Wolters +8 more
TL;DR: In this paper, the authors present an adaptation of the Advanced Thermophysical Model to simultaneously predict the Yarkovsky and YORP effects in the presence of global self-heating that occurs within the large concavities of irregularly shaped asteroids, which has been neglected or dismissed in all previous models.
Journal ArticleDOI
The dust environment of comet 67P/Churyumov-Gerasimenko from Rosetta OSIRIS and VLT observations in the 4.5 to 2.9 AU heliocentric distance range inbound
F. Moreno,Colin Snodgrass,Olivier Hainaut,Cecilia Tubiana,Holger Sierks,Cesare Barbieri,Philippe Lamy,Rafael Rodrigo,Detlef Koschny,Hans Rickman,Horst Uwe Keller,Jessica Agarwal,M. F. A'Hearn,M. A. Barucci,J. L. Bertaux,Ivano Bertini,Sebastien Besse,Dennis Bodewits,Gabriele Cremonese,V. Da Deppo,B. J. R. Davidsson,Stefano Debei,M. De Cecco,Francesca Ferri,Sonia Fornasier,Marco Fulle,Olivier Groussin,P. J. Gutiérrez,P. Gutierrez-Marques,Carsten Güttler,Stubbe F. Hviid,Wing-Huen Ip,Laurent Jorda,Jörg Knollenberg,Géza Kovács,J.-R. Kramm,Ekkehard Kührt,Michael Küppers,L. M. Lara,Monica Lazzarin,J. J. López-Moreno,Francesco Marzari,Stefano Mottola,Giampiero Naletto,Nilda Oklay,Maurizio Pajola,Nicolas Thomas,J. B. Vincent,V. Della Corte,Alan Fitzsimmons,Sara Faggi,Emmanuel Jehin,Cyrielle Opitom,G. P. Tozzi +53 more
TL;DR: In this paper, a Monte Carlo dust tail code has been applied to retrieve the dust parameters from OSIRIS and GIADA data, which were used as input of the code to considerably reduce the number of free parameters.
Journal ArticleDOI
Observations of the Trans-Neptunian Objects 1993 SC and 1996 TL66 with the Infrared Space Observatory*
Nicolas Thomas,S. Eggers,W.-H. Ip,G. Lichtenberg,Alan Fitzsimmons,Laurent Jorda,H. U. Keller,Iwan P. Williams,Gerhard Hahn,Heike Rauer +9 more
TL;DR: In this article, a thermal model was used to estimate the radius and albedo of the trans-Neptunian objects (TNOs) at 90 μm.
Journal Article
A spectroscopic survey of D-type asteroids
TL;DR: In this paper, CCD spectra of 19 asteroids previously classified as D-type covering the wavelength range 3500≤λ≤9600 A were presented and compared with previously published photometric data.