H
Heidi B. Hammel
Researcher at Association of Universities for Research in Astronomy
Publications - 151
Citations - 5228
Heidi B. Hammel is an academic researcher from Association of Universities for Research in Astronomy. The author has contributed to research in topics: Neptune & Uranus. The author has an hindex of 35, co-authored 142 publications receiving 4671 citations. Previous affiliations of Heidi B. Hammel include Jet Propulsion Laboratory & Space Science Institute.
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Journal ArticleDOI
The James Webb Space Telescope
Jonathan P. Gardner,John C. Mather,Mark Clampin,René Doyon,Matthew A. Greenhouse,Heidi B. Hammel,J. B. Hutchings,Peter Viggo Jakobsen,Simon J. Lilly,Knox S. Long,Jonathan I. Lunine,Mark J. McCaughrean,Matt Mountain,John Nella,George H. Rieke,Marcia J. Rieke,Hans-Walter Rix,Eric P. Smith,George Sonneborn,Massimo Stiavelli,H. S. Stockman,Rogier A. Windhorst,Gillian S. Wright +22 more
TL;DR: The James Webb Space Telescope (JWST) as discussed by the authors is a large (6.6 m), cold (<50 K), infrared-optimized space observatory that will be launched early in the next decade into orbit around the second Earth-Sun Lagrange point.
Journal ArticleDOI
Voyager 2 at neptune: imaging science results.
Bradford A. Smith,L. A. Soderblom,Don Banfield,C. D. Barnet,Alexander T. Basilevsky,Reta Beebe,K. Bollinger,Joseph M. Boyce,André Brahic,G. A. Briggs,Robert H. Brown,Christopher F. Chyba,Stewart A. Collins,Tim R. Colvin,A. F. Cook,David Crisp,Steven K. Croft,Dale P. Cruikshank,Jeffrey N. Cuzzi,G. E. Danielson,Merton E. Davies,E. De Jong,Luke Dones,D. Godfrey,Jay D. Goguen,I. Grenier,V. R. Haemmerle,Heidi B. Hammel,Candice Hansen,c. P. Helfenstein,Chris Howell,G. E. Hunt,Andrew P. Ingersoll,Torrence V. Johnson,Jeffrey S. Kargel,R. L. Kirk,D. I. Kuehn,Sanjay S. Limaye,Harold Masursky,Alfred S. McEwen,David Morrison,Tobias Owen,William M. Owen,James B. Pollack,Carolyn C. Porco,K. Rages,P. Rogers,D. Rudy,C. Sagan,Joel M. Schwartz,Eugene M. Shoemaker,Mark R. Showalter,Bruno Sicardy,Damon P. Simonelli,John R. Spencer,Lawrence A. Sromovsky,Carol R. Stoker,Robert G. Strom,Verner E. Suomi,S. P. Synott,Richard J. Terrile,Peter C. Thomas,W. R. Thompson,A. Verbiscer,J. Veverka +64 more
TL;DR: New Voyager 2 images of Neptune reveal a windy planet characterized by bright clouds of methane ice suspended in an exceptionally clear atmosphere above a lower deck of hydrogen sulfide or ammonia ices, dominated by a large anticyclonic storm system that has been named the Great Dark Spot.
Journal ArticleDOI
HST imaging of atmospheric phenomena created by the impact of Comet Shoemaker-Levy 9
Heidi B. Hammel,Reta Beebe,Andrew P. Ingersoll,Glenn S. Orton,J. R. Mills,Amy Simon,Paul W. Chodas,John Clarke,E. De Jong,Timothy E. Dowling,Joseph Harrington,Lyle Huber,Erich Karkoschka,Charles Santori,Anthony D. Toigo,Donald K. Yeomans,Robert A. West +16 more
TL;DR: Hubble Space Telescope (HST) images reveal major atmospheric changes created by the collision of comet Shoemaker-Levy 9 with Jupiter and record the overall change in Jupiter's appearance as a result of the bombardment.
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Impact debris particles in Jupiter's stratosphere
TL;DR: The aftermath of the impacts of periodic comet Shoemaker-Levy 9 on Jupiter was studied with the Wide Field Planetary Camera 2 on the Hubble Space Telescope, finding particle coagulation can account for the evolution of particle radius and total optical depth during the month following the impacts.
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Thermal Maps of Jupiter: Spatial Organization and Time Dependence of Stratospheric Temperatures, 1980 to 1990
Glenn S. Orton,A. James Friedson,Kevin H. Baines,Terry Z. Martin,Robert A. West,John Caldwell,Heidi B. Hammel,Jay T. Bergstralh,Michael E. Malcom,W. Golisch,D. Griep,C. Kaminski,Alan T. Tokunaga,R. Baron,Mark A. Shure +14 more
TL;DR: The spatial organization and time dependence of Jupiter's stratospheric temperatures have been measured by observing thermal emission from the 7.8-micrometer CH4 band.