H
Henry G. Roe
Researcher at Lowell Observatory
Publications - 117
Citations - 3474
Henry G. Roe is an academic researcher from Lowell Observatory. The author has contributed to research in topics: Titan (rocket family) & Telescope. The author has an hindex of 33, co-authored 116 publications receiving 3303 citations. Previous affiliations of Henry G. Roe include University of California, Berkeley & California Institute of Technology.
Papers
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Journal ArticleDOI
Neutron-Capture Elements in the Early Galaxy: Insights from a Large Sample of Metal-poor Giants
Debra L. Burris,Catherine A. Pilachowski,Taft E. Armandroff,Christopher Sneden,John J. Cowan,Henry G. Roe +5 more
TL;DR: In this article, a large sample of metal-poor giants from the Bond survey is presented, and the abundances of eight n-capture elements (Sr, Y, Zr, Ba, La, Nd, Eu, and Dy) in 43 stars have been derived from blue and red spectra.
Journal ArticleDOI
Photometric Observations Constraining the Size, Shape, and Albedo of 2003 EL61, a Rapidly Rotating, Pluto-sized Object in the Kuiper Belt
David Rabinowitz,K. M. Barkume,Michael E. Brown,Henry G. Roe,Michael L. Schwartz,Suzanne W. Tourtellotte,Chad Trujillo +6 more
TL;DR: In this paper, the spectral reflectance, rotational light curve, and solar phase curve of 2003 EL61 were measured at optical wavelengths of the Kuiper Belt object at 51 AU from the Sun, revealing an unambiguous, double-peaked light curve with period 3.9154 ± 0.0002 hr and peak-to-peak amplitude 0.28 − 0.04 mag.
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Titan's Clouds from Gemini and Keck Adaptive Optics Imaging
TL;DR: In this paper, the authors used adaptive optics on the Gemini and Keck II telescopes to find a thin haze and discrete clouds in Titan's south polar troposphere, and they suggested that convection within this haze layer triggers methane condensation; subsequent latent heat release leads to vigorous convection and formation of transient clouds.
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Methane and ethane on the bright Kuiper Belt object 2005 FY9
Michael E. Brown,K. M. Barkume,Geoffrey A. Blake,Emily L. Schaller,D. Rabinowitz,Henry G. Roe,Chadwick A. Trujillo +6 more
TL;DR: The spectrum of the bright Kuiper Belt object 2005 FY9 from 0.34 to 2.5μm is dominated by the red coloring of many outer solar system objects in the optical wavelength regime and by absorption due to methane in the near-infrared.
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Overview of the coordinated ground-based observations of Titan during the Huygens mission
Olivier Witasse,Jean-Pierre Lebreton,Michael K. Bird,R. Dutta-Roy,William M. Folkner,Robert A. Preston,Sami W. Asmar,Leonid I. Gurvits,Sergei Pogrebenko,I. M. Avruch,Robert M. Campbell,Hayley Bignall,M. A. Garrett,Huib Jan van Langevelde,Stephen M. Parsley,Cormac Reynolds,Arpad Szomoru,John Reynolds,Chris Phillips,Robert J. Sault,Anastasios Tzioumis,Frank D. Ghigo,Glen Langston,Walter Brisken,Jonathan D. Romney,Ari Mujunen,Jouko Ritakari,Steven Tingay,Richard Dodson,C.G.M. van 't Klooster,Thierry Blancquaert,Athena Coustenis,Eric Gendron,Bruno Sicardy,Mathieu Hirtzig,David Luz,Alberto Negrao,Theodor Kostiuk,Timothy A. Livengood,Markus Hartung,Imke de Pater,Máté Ádámkovics,Ralph D. Lorenz,Henry G. Roe,Emily L. Schaller,Michael E. Brown,Antonin Bouchez,Chad Trujillo,Bonnie J. Buratti,Lise Caillault,Thierry Magin,Anne Bourdon,Christophe O. Laux +52 more
TL;DR: In this paper, a review of ground-based observations of Titan during the Huygens atmospheric probe mission at Titan is presented, connecting the momentary in situ observations by the probe with the synoptic coverage provided by continuing ground based programs.