Results 21 to 30 of about 17,049 (167)

Ice Cloud and Dust Climatologies Over 4 Martian Years From TGO/NOMAD‐UVIS Nadir Retrieval

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract We generate climatologies of ice cloud and dust optical depth derived from the NOMAD/UVIS nadir measurements onboard ExoMars Trace Gas Orbiter (TGO) for almost four Martian Years (MY), from mid MY34 to mid MY38. Our retrieval algorithm has been updated with new results for aerosol models and surface reflectance.
Y. Willame, L. Neary, F. Daerden, M. J. Wolff, J. T. Erwin, I. R. Thomas, S. Robert, J. P. Mason, L. Trompet, A. C. Vandaele, A. Piccialli, N. Pereira, Z. Flimon, C. Depiesse, B. Ristic, M. R. Patel, G. Bellucci, M. A. López‐Valverde   +17 more
wiley   +1 more source

EVALUACIÓN DE LA IMPLEMENTACIÓN DE LOS CURSOS NASE EN PANAMÁ 2011-2021

Tecnociencia, 2022
NASE (Network for Astronomy School Education) se constituyó en la Asamblea General de la IAU en Río de Janeiro en 2009 con el propósito de entrenar docentes en la enseñanza de la astronomía usando materiales baratos y fáciles de conseguir para lograr ...
Adam´s Martínez, Eduardo Chung, Vicente Forero, Ernesto Urriola, Eduardo Saenz   +4 more
doaj  

A CATACLÍSMICA VARIÁVEL MAGNÉTICA V348 PAV

Revista UniVap, 2017
No âmbito de um projeto de busca por novos objetos da classe de Variáveis Cataclísmicas magnéticas (mCVs - magnetic Cataclysmic Variables), selecionamos SSS110526:195648-603430 (em diante SSS1956-60) para um estudo observacional detalhado. SSS1956-60 foi
Matheus Soares Palhares, Claudia Vilega Rodrigues, Karleyne Medeiros Gomes Silva, Isabel Lima, Deonisio Cieslinski, Francisco José Jablonski, Leonardo Andrade Almeida, Murilo Martins, Alexandre Soares Oliveira   +8 more
doaj   +1 more source

Effects of Comet Encke's Meteoroid Stream on the Seasonal Variation of Mercury's Ca Exosphere

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Mercury's calcium (Ca) exosphere, observed by NASA's MESSENGER mission, exhibits high temperatures (>50000 K) and pronounced seasonal variability, with its source mainly on the dawn side. Enhanced Ca emission near True Anomaly Angle (TAA) ∼25° and ∼150° has been attributed to Comet 2P/Encke meteoroid streams.
M. Moroni, A. Milillo, A. Mura, A. A. Christou, P. Pokorný, V. Mangano, A. Berezhnoy, A. Aronica, A. Brin, E. De Angelis, P. P. Di Bartolomeo, A. Kazakov, S. Massetti, S. Orsini, C. Plainaki, G. Richards, R. Rispoli, R. Sordini, M. Stumpo   +18 more
wiley   +1 more source

Spectroscopy of a mesospheric ghost reveals iron emissions

Nature Communications, 2023
Mesospheric Green emissions from excited Oxygen in Sprite Tops (ghosts) are infrequent and faint greenish transient luminous events that remain for hundreds of milliseconds on top of certain energetic sprites.
María Passas-Varo, Oscar Van der Velde, Francisco J. Gordillo-Vázquez, Juan Carlos Gómez-Martín, Justo Sánchez, Francisco J. Pérez-Invernón, Rubén Sánchez-Ramírez, Maya García-Comas, Joan Montanyà   +8 more
doaj   +1 more source

The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces

Archaeometry, Volume 68, Issue 3, Page 317-329, June 2026.
ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río, Pablo Cruz, Miriam Gómez‐Paccard, Alicia Palencia‐Ortas, Marina Puente‐Borque, F. Javier Pavón‐Carrasco, Erik Marsh   +6 more
wiley   +1 more source

Multiple global‐change drivers and cascading effects in Mediterranean ecosystems: Lessons from an iconic national park

Conservation Science and Practice, Volume 8, Issue 6, June 2026.
Mediterranean ecosystems face complex, multi‐trophic impacts from global‐change drivers, yet responses are often studied in isolation. Using the Doñana Protected Area as a case study, we illustrate how anthropogenic pressures on key species like cork oaks and rabbits, as well as increases in species like wild boar and invasive crayfish, lead to ...
Maria Paniw, Duarte S. Viana, Cristina Coccia, Virginia Domínguez‐García, Iñigo Donázar‐Aramendía, Sebastiano de Franciscis, Alberto García‐Rodríguez, Simone Guareschi, Pablo Homet, Jose B. Lanuza, Cosme López‐Calderón, Irene Mendoza, Eva Moracho, Laetitia M. Navarro, Javier Puy, José M. Reyes‐González, María José Ruiz‐López, Zulima Tablado, Elena Tena, Estefanía Tobajas, Elena Velado‐Alonso, Pablo Villalva, Nacho Villar, Marcello D'Amico   +23 more
wiley   +1 more source

Potential of VIS‐IR imaging spectroscopy and SEM‐EDS and EMPA to map the mineralogical composition of NWA 7317 (CR6)

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 1026-1044, June 2026.
Abstract Asteroid compositional analysis relies on comparing reflectance spectra with laboratory data from well‐characterized meteorites. To advance this comparison, we performed a comprehensive laboratory analysis on a slab of the Northwest Africa (NWA) 7317—CR6 carbonaceous chondrite.
Simone Pascucci, Tiberio Cuppone, Martina Casalini, Simone De Angelis, Antonio Lettino, Angelo Palombo, Eliana La Francesca, Gianrico Filacchione, Maria Cristina De Sanctis, Anna Galiano, Giovanni Pratesi   +10 more
wiley   +1 more source

Astronomia e astrofísica do meio interestelar

, 2016
Esta coleção possui recursos de astronomia e astrofísica do meio interestelar. Os três recursos são complementares, trazendo informações que façam com que o usuário entenda primeiramente, a composição do meio interestelar.
National Aeronautics and Space Administration, NASA, Jet Propulsion Laboratory, California Institute of Technology   +1 more
core   +1 more source

On the Role of Dynamical Uncertainties in the Spread of Arctic Ozone Recovery Projections

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Arctic ozone is projected to recover over the 21st century in compliance with the Montreal Protocol. Chemistry‐climate models show a large spread in recovery rates and future changes in key dynamical features such as the polar vortex and the residual circulation.
Samuel Benito‐Barca, Marta Abalos, Natalia Calvo, Alvaro de la Cámara, Blanca Ayarzagüena, Gabriel Chiodo, Hideharu Akiyoshi, Fraser Dennison, Patrick Jöckel, Béatrice Josse, Doug Kinnison, Olaf Morgenstern, David Plummer, Timofei Sukhodolov, Yousuke Yamashita, Shingo Watanabe   +15 more
wiley   +1 more source