Results 51 to 60 of about 902 (203)

Visible, near‐, and thermal infrared spectra of asteroid Bennu samples: Relationship to and implications for remote sensing of carbonaceous asteroids

Meteoritics &Planetary Science, EarlyView.
Abstract Remote spectroscopy is used to characterize the mineralogy and infer the history of planetary bodies. Carbonaceous asteroids, such as B‐type (101955) Bennu, represent the earliest stages of planet formation. B types have a blue (negative) spectral slope and comprise <5% of asteroids.
V. E. Hamilton, E. A. Cloutis, R. E. Milliken, P. Haenecour, D. R. Golish, K. J. Domanik, T. J. McCoy, L. P. Keller, A. A. Simon, H. H. Kaplan, C. A. Goodrich, S. A. Sandford, D. Applin, T. Hiroi, D. H. Hill, N. G. Lunning, F. M. McCubbin, S. A. Eckley, C. J. Snead, E. H. Blumenfeld, J. E. Aebersold, C. Schultz, N. Bowles, K. A. Shirley, S. S. Russell, J. J. Barnes, T. J. Zega, D. N. DellaGiustina, A. J. Ryan, D. P. Glavin, J. P. Dworkin, H. C. Connolly Jr., D. S. Lauretta   +32 more
wiley   +1 more source

Observations of [O I] Emission in Comets C/2014 Q2 (Lovejoy) and C/2007 N3 (Lulin): Possible Influence of Solar Activity on Oxygen Line Ratios

The Planetary Science Journal
Observing [O i ] emission to calculate an oxygen line ratio has been proposed as a potential proxy for direct CO _2 measurement in comets. However, the photochemistry governing [O i ] release into the coma is not well understood, and using theoretical ...
Ella J. Mayfield, Adam J. McKay, Michael S. P. Kelley, Anita L. Cochran   +3 more
doaj   +1 more source

Evaluating School‐Based Obesity Prevention Interventions in 6‐ to 12‐Year‐Old Children: A Scoping Review of All Reported Outcomes and Expert Consultation

Obesity Reviews, EarlyView.
ABSTRACT Introduction This scoping review aims to identify all outcomes reported in school‐based obesity prevention interventions in childhood. It serves as an essential first step towards developing an internationally agreed‐upon Core Outcome Set (COS), which defines what should be measured in all school‐based childhood obesity prevention studies ...
Teatske M. Altenburg, Lotte W. de Vries, Iris J. Grooten, Janneke van 't Hooft, Arend W. van Deutekom, Tessa Roseboom, Erica van den Akker, Michael Duncan, Ulf Ekelund, John J. Reilly, Lisa Reilly, Annette Stafleu, Martyn Standage, Mai J. M. Chinapaw, Deirdre M. Harrington   +14 more
wiley   +1 more source

Seasonal changes of the volatile density in the coma and on the surface of comet 67P/Churyumov–Gerasimenko [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
Starting from several monthly data sets of Rosetta's COmetary Pressure Sensor we reconstruct the gas density in the coma around comet 67P/Churyumov-Gerasimenko. The underlying inverse gas model is constructed by fitting ten thousands of measurements to thousands of potential gas sources distributed across the entire nucleus surface.
Kramer, Tobias, Laeuter, Matthias, Rubin, Martin, Altwegg, Kathrin   +3 more
openaire   +2 more sources

Rosetta/ROSINA observations of the volatiles in the coma of comet 67P/Churyumov-Gerasimenko during the nominal mission

, 2015
International audienceThe European Space Agency’s Rosetta spacecraft is in close proximity of comet 67P/Churyumov-Gerasimenko for well over a year now. During this time Rosetta followed the comet from almost 3.5 AU through perihelion at 1.25 AU and away ...
Mall, Urs, Balsiger, Hans, Fuselier, Stephen, Jäckel, Annette, Wurz, Peter, Calmonte, Ursina, de Keyser, Johan, Hässig, Myrtha, Sémon, Thierry, Le Roy, Léna, Rubin, Martin, Gasc, Sébastien, Rème, Henri, Tzou, Chia-Yu, Berthelier, Jean-Jacques, Gombosi, Tamas I., Fiethe, Björn, Altwegg, Kathrin   +17 more
core   +1 more source

Dust Properties of Comets Observed by Spitzer

The Planetary Science Journal, 2023
As comets journey into the inner solar system, they deliver particulates and volatile gases into their comae that reveal the most primitive materials in the solar system.
David E. Harker, Diane H. Wooden, Michael S. P. Kelley, Charles E. Woodward   +3 more
doaj   +1 more source

Chemical Exposures, DNA Methylation and Whole Blood DNA Damage in Pet Golden Retrievers

Veterinary and Comparative Oncology, EarlyView.
ABSTRACT Canine multicentric lymphoma (CL) is a common and typically fatal cancer among dogs. Although certain breeds have a higher incidence of CL, its environmental risk factors remain uncertain. Exposures to herbicides and volatile organic compounds (VOCs) associate with non‐Hodgkin lymphoma in people.
Ashleigh N. Tindle, Mark E. Berres, Lauren Baker, Zhuonan Wu, Brenna Swafford, Julia Labadie, Lauren A. Trepanier   +6 more
wiley   +1 more source

Boulder Migration in the Khonsu Region of Comet 67P/Churyumov–Gerasimenko

The Astrophysical Journal
The European Space Agency's Rosetta mission is the only space mission that has performed long-term monitoring of a comet at close distances. For over two years, Rosetta rendezvoused with comet 67P/Churyumov–Gerasimenko, which revealed diverse ...
Xiang Tang, Xian Shi, Mohamed Ramy El-Maarry   +2 more
doaj   +1 more source

Global Occurrence of Solitary Waves in the Martian Magnetosphere

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract This letter presents a global occurrence of bipolar solitary waves (SWs) in the Martian magnetosphere. We utilized medium‐frequency electric field measurements from October 2014 to December 2023 from the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft.
Sahil Pandey, Amar Kakad, Bharati Kakad
wiley   +1 more source

The Peculiar Volatile Composition of CO-dominated Comet C/2016 R2 (PanSTARRS) [PDF]

The Astronomical Journal, 2019
Abstract Comet C/2016 R2 (PanSTARRS) has a peculiar volatile composition, with CO being the dominant volatile, as opposed to H2O, and one of the largest N2/CO ratios ever observed in a comet. Using observations obtained with the Spitzer Space Telescope, NASA’s Infrared Telescope Facility, the 3.5 m Astrophysical Research Consortium ...
Adam J. McKay, Michael A. DiSanti, Michael S. P. Kelley, Matthew M. Knight, Maria Womack, Kacper Wierzchos, Olga Harrington Pinto, Boncho Bonev, Geronimo L. Villanueva, Neil Dello Russo, Anita L. Cochran, Nicolas Biver, James Bauer, Ronald J. Vervack, Jr., Erika Gibb, Nathan Roth, Hideyo Kawakita   +16 more
openaire   +4 more sources