Results 61 to 70 of about 3,518 (157)

Col-OSSOS: Investigating the Origins of Different Surfaces in the Primordial Kuiper Belt

The Planetary Science Journal
The Colours of the Outer Solar System Origins Survey (Col-OSSOS) measured the optical/near-IR colors of a brightness-complete sample of trans-Neptunian objects (TNOs).
Laura E. Buchanan, Megan E. Schwamb, Wesley C. Fraser, Michele T. Bannister, J. J. Kavelaars, Michaël Marsset, Rosemary E. Pike, David Nesvorný, Samantha M. Lawler, Susan D. Benecchi, Nuno Peixinho, Nicole J. Tan, Kathryn Volk, Mike Alexandersen, Jean-Marc Petit   +14 more
doaj   +1 more source

Recently Identified Mesoproterozoic Strata in South‐Central Idaho Document Late‐Stage Rifting of the Nuna Supercontinent in Western Laurentia

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 6, June 2024.
Abstract Sedimentary basins are valuable archives of tectonic processes involved in continental rifting. The northern Rocky Mountains preserve the Belt Supergroup, one of the most complete records of Mesoproterozoic strata on Earth; however, debate remains about its tectonic origin.
J. P. Lever, K. E. Sundell, D. M. Pearson, D.T. Brennan   +3 more
wiley   +1 more source

A Broad Set of Solar and Cosmochemical Data Indicates High C-N-O Abundances for the Solar System

The Astrophysical Journal
We examine the role of refractory organics as a major C carrier in the outer protosolar nebula and its implications for the compositions of large Kuiper Belt objects (KBOs) and CI chondrites.
Ngoc Truong, Christopher R. Glein, Jonathan I. Lunine   +2 more
doaj   +1 more source

Icy ocean worlds, plumes, and tasting the water

Meteoritics &Planetary Science, Volume 59, Issue 6, Page 1385-1406, June 2024.
Abstract This paper considers how space missions that fly through the plumes known, or suspected, to erupt naturally from some icy ocean worlds (IOW), such as Enceladus, or that aim to intercept icy ejecta from impact cratering processes on such bodies can sample the water and ice within the plumes.
M. J. Burchell, P. J. Wozniakiewicz
wiley   +1 more source

Prominent Mid-infrared Excess of the Dwarf Planet (136472) Makemake Discovered by JWST/MIRI Indicates Ongoing Activity

The Astrophysical Journal Letters
We report on the discovery of a very prominent mid-infrared (18–25 μ m) excess associated with the trans-Neptunian dwarf planet (136472) Makemake. The excess, detected by the Mid-Infrared Instrument of the James Webb Space Telescope, along with previous ...
Csaba Kiss, Thomas G. Müller, Anikó Farkas-Takács, Attila Moór, Silvia Protopapa, Alex H. Parker, Pablo Santos-Sanz, Jose Luis Ortiz, Bryan J. Holler, Ian Wong, John Stansberry, Estela Fernández-Valenzuela, Christopher R. Glein, Emmanuel Lellouch, Esa Vilenius, Csilla E. Kalup, Zsolt Regály, Róbert Szakáts, Gábor Marton, András Pál, Gyula M. Szabó   +20 more
doaj   +1 more source

Neogene‐Recent Reactivation of Pre‐Existing Faults in South‐Central Vietnam, With Implications for the Extrusion of Indochina

Tectonics, Volume 43, Issue 4, April 2024.
Abstract Vietnam contains complex faults coupled with a diffuse igneous province that has been active since the mid‐Miocene. However, existing fault maps demonstrate little consensus over the location of Neogene basalt flows and relative ages of mapped faults, which complicates interpretations of tectonic model for the evolution of Indochina.
Nicholas Richard, Caroline M. Burberry, Nguyen Hoang, Le Duc Anh, Sang Q. Dinh, Lynne J. Elkins   +5 more
wiley   +1 more source

Spectral Characterization of the Organic- and Methanol-rich Cliff-type Trans-Neptunian Objects

The Astronomical Journal
Trans-Neptunian objects (TNOs) harbor pristine materials from the early solar system. The James Webb Space Telescope offers major insights into the spectral classification of these small bodies.
Lucas T. McClure, Joshua P. Emery, Noemi Pinilla-Alonso, Rosario Brunetto, Sasha Cryan, Elsa Hénault, Brittany Harvison, Bryan J. Holler, Yvonne Pendleton, Dale Cruikshank, John Stansberry, Aurelie Guilbert-Lepoutre, Javier Licandro, Vania Lorenzi, Thomas Müller, Ana Carolina de Souza-Feliciano, Charles Schambeau, Nuno Peixinho, Michele Bannister   +18 more
doaj   +1 more source

Piecing the barcoding puzzle of Palearctic water frogs (Pelophylax) sheds light on amphibian biogeography and global invasions

Global Change Biology, Volume 30, Issue 3, March 2024.
By revisiting three decades of molecular data, we retraced the evolution and mapped the diversity of Pelophylax water frogs, a famous group of Eurasian amphibians. The results highlight the Paratethys Paleo‐sea as a major driver of diversification, implement a new timetree validation approach, emphasize the rare ability of lineages to hybridize despite
Christophe Dufresnes, Benjamin Monod‐Broca, Adriana Bellati, Daniele Canestrelli, Johanna Ambu, Ben Wielstra, Sylvain Dubey, Pierre‐André Crochet, Mathieu Denoël, Daniel Jablonski   +9 more
wiley   +1 more source

Rotational Study of 5:3 and 7:4 Resonant Objects within the Main Classical Trans-Neptunian Belt

The Planetary Science Journal
The 5:3 and 7:4 mean motion resonances of Neptune are at 42.3 and 43.7 au, respectively, and overlap with objects in the classical trans-Neptunian belt (Kuiper Belt).
Audrey Thirouin, Scott S. Sheppard
doaj   +1 more source

On Error Estimates for Hapke Photometric Model Parameters from Disk-integrated Phase Curves of Airless Planetary Bodies

The Planetary Science Journal
The Hapke bidirectional reflectance model is widely used to analyze photometric observations of planetary surfaces. When fitting disk-integrated data, nonuniqueness concerns arise if observations lack sufficient phase angle coverage to constrain the ...
Paul Helfenstein, Anne J. Verbiscer
doaj   +1 more source