Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Richard A. Cartwright"'
Autor:
Silvia Protopapa, Ujjwal Raut, Ian Wong, John Stansberry, Geronimo L. Villanueva, Jason Cook, Bryan Holler, William M. Grundy, Rosario Brunetto, Richard J. Cartwright, Bereket Mamo, Joshua P. Emery, Alex H. Parker, Aurelie Guilbert-Lepoutre, Noemi Pinilla-Alonso, Stefanie N. Milam, Heidi B. Hammel
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract Charon, Pluto’s largest moon, has been extensively studied, with research focusing on its primitive composition and changes due to radiation and photolysis. However, spectral data have so far been limited to wavelengths below 2.5 μm, leav
Externí odkaz:
https://doaj.org/article/f61206c6fe4b4228bf14fc9c2cf2445a
Autor:
Richard J. Cartwright, Bryan J. Holler, William M. Grundy, Stephen C. Tegler, Marc Neveu, Ujjwal Raut, Christopher R. Glein, Tom A. Nordheim, Joshua P. Emery, Julie C. Castillo-Rogez, Eric Quirico, Silvia Protopapa, Chloe B. Beddingfield, Matthew M. Hedman, Katherine de Kleer, Riley A. DeColibus, Anastasia N. Morgan, Ryan Wochner, Kevin P. Hand, Geronimo L. Villanueva, Sara Faggi, Noemi Pinilla-Alonso, David E. Trilling, Michael M. Mueller
Publikováno v:
The Astrophysical Journal Letters, Vol 970, Iss 2, p L29 (2024)
The Uranian moon Ariel exhibits a diversity of geologically young landforms, with a surface composition rich in CO _2 ice. The origin of CO _2 and other species, however, remains uncertain. We report observations of Ariel’s leading and trailing hem
Externí odkaz:
https://doaj.org/article/c36f1579479842eab17c56f991c68054
Autor:
Richard J. Cartwright, Geronimo L. Villanueva, Bryan J. Holler, Maria Camarca, Sara Faggi, Marc Neveu, Lorenz Roth, Ujjwal Raut, Christopher R. Glein, Julie C. Castillo-Rogez, Michael J. Malaska, Dominique Bockelée-Morvan, Tom A. Nordheim, Kevin P. Hand, Giovanni Strazzulla, Yvonne J. Pendleton, Katherine de Kleer, Chloe B. Beddingfield, Imke de Pater, Dale P. Cruikshank, Silvia Protopapa
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 3, p 60 (2024)
We analyzed spectral cubes of Callisto’s leading and trailing hemispheres, collected with the NIRSpec Integrated Field Unit (G395H) on the James Webb Space Telescope. These spatially resolved data show strong 4.25 μ m absorption bands resulting fr
Externí odkaz:
https://doaj.org/article/e0d789f9fd614e8d8218c301b719ed15
Autor:
Chloe B. Beddingfield, Erin J. Leonard, Tom A. Nordheim, Richard J. Cartwright, Julie C. Castillo-Rogez
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 11, p 211 (2023)
Messina Chasmata is a relatively young tectonic structure on Titania based on cross-cutting relationships, although an absolute age has not been estimated. We investigated lithospheric flexure bounding Messina and found that the terrain along both ri
Externí odkaz:
https://doaj.org/article/a6304b4e3a33400d9e186f02820ca416
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 10, p 191 (2023)
Published near-IR spectra of the four largest classical Uranian satellites display the presence of discrete deposits of CO _2 ice, along with subtle absorption features around 2.2 μ m. The two innermost satellites, Miranda and Ariel, also possess su
Externí odkaz:
https://doaj.org/article/8c4775dc7d3841189c33b2711fc57656
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 3, p 57 (2023)
We investigated how lithospheric heat fluxes varied temporally and spatially on the Saturnian moon Tethys, focusing on the region of Ithaca Chasma that overprints Telemus Impact Basin. Our results, derived from flexure associated with Ithaca, indicat
Externí odkaz:
https://doaj.org/article/a205c8c1b66f4dcb85a9e2698167551a
Autor:
Richard J. Cartwright, Riley A. DeColibus, Julie C. Castillo-Rogez, Chloe B. Beddingfield, William M. Grundy, Tom A. Nordheim
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 3, p 42 (2023)
Near-infrared spectra of Umbriel and the other classical Uranian moons exhibit 2.2 μ m absorption bands that could result from ammonia (NH _3 ) bearing species, possibly exposed in the geologically recent past. However, Umbriel has an ancient surfac
Externí odkaz:
https://doaj.org/article/0f3e5fa1199a4a3a910776c98be9754f
Publikováno v:
The Planetary Science Journal, Vol 3, Iss 5, p 119 (2022)
Many tidally locked icy satellites in the outer solar system show leading/trailing hemispherical asymmetries in the strength of near-infrared (NIR) H _2 O ice absorption bands, in which the absorption bands are stronger on the leading hemisphere. Thi
Externí odkaz:
https://doaj.org/article/48d2d551adbe4057b2f89ff9510190f9
Autor:
Richard J. Cartwright, Tom A. Nordheim, Riley A. DeColibus, William M. Grundy, Bryan J. Holler, Chloe B. Beddingfield, Michael M. Sori, Michael P. Lucas, Catherine M. Elder, Leonardo H. Regoli, Dale P. Cruikshank, Joshua P. Emery, Erin J. Leonard, Corey J. Cochrane
Publikováno v:
The Planetary Science Journal, Vol 3, Iss 1, p 8 (2022)
CO _2 ice is present on the trailing hemisphere of Ariel but is mostly absent from its leading hemisphere. The leading/trailing hemispherical asymmetry in the distribution of CO _2 ice is consistent with radiolytic production of CO _2 , formed by cha
Externí odkaz:
https://doaj.org/article/7caa8d5eb1e845bf9f119ffc5a6408a8
Autor:
Cassia Pianca, David K. Ralston, Amy E. Simonson, Neil K. Ganju, Richard A. Cartwright, Robert J. Chant
Publikováno v:
Estuaries and Coasts. 44:608-626
External sediment supply is an important control on wetland morphology and vulnerability to storms, sea-level rise, and land use change. Constraining sediment supply and net budgets is difficult due to multiple timescales of variability in hydrodynam