Results 51 to 60 of about 940 (210)

Pole‐to‐Pole Vertical Ionospheric Profiles at Jupiter From JWST

Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.
Abstract We present the first pole‐to‐pole observations of Jupiter's ionosphere, capturing dawn and dusk vertical structure up to 5,000 km altitude using the James Webb Space Telescope (JWST), simultaneous to Juno's radio occultation experiments (ROX) in September 2023.
Paola I. Tiranti, H. Melin, L. Moore, K. L. Knowles, T. S. Stallard, J. O’Donoghue, K. Roberts, K. Mohamed, E. M. Thomas   +8 more
wiley   +1 more source

Search for small trans-Neptunian objects by the TAOS project [PDF]

Proceedings of the International Astronomical Union, 2006
AbstractThe Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small (D=0.5 m), wide-field (f/1.9) telescopes have been installed at Lulin Observatory in Taiwan to simultaneously monitor some thousand of stars for such ...
Chen, W., Alcock, C., Axelrod, T., Bianco, F., Byun, Y., Chang, Y., Cook, K., Dave, R., Giammarco, J., Kim, D., King, S., Lee, T., Lehner, M., Lin, C., Lin, H., Lissauer, J., Marshall, S., Meinshausen, N., Mondal, S., de Pater, I., Porrata, R., Rice, J., Schwamb, M., Wang, A., Wang, S., Wen, C., Zhang, Z.   +26 more
openaire   +2 more sources

Visible spectroscopy of the two largest known trans-Neptunian objects: Ixion and Quaoar

, 2003
We report visible spectroscopy of the two largest known trans-Neptunian objects (TNOs): Quaoar (=50 000) and Ixion (=28 976) obtained respectively on 4th and 5th May 2003 with the ESO New Technology Telescope (NTT) at La Silla, Chile.
MAGRIN, SARA, S. Magrin, MARCHI, SIMONE, C. Barbieri, BARBIERI, CESARE, S. Marchi, LAZZARIN, MONICA, M. Lazzarin   +7 more
core   +1 more source

Orbit of a Possible Planet X

The Astrophysical Journal
The plausibility of an unseen planet in the outer solar system, and the expected orbit and mass of such a planet, have long been a topic of inquiry and debate.
Amir Siraj, Christopher F. Chyba, Scott Tremaine   +2 more
doaj   +1 more source

OSSOS. XXIX. The Population and Perihelion Distribution of the Detached Kuiper Belt

The Planetary Science Journal, 2023
The detached trans-Neptunian objects (TNOs) are those with semimajor axes beyond the 2:1 resonance with Neptune that are neither resonant nor scattering.
Matthew Beaudoin, Brett Gladman, Yukun Huang, Michele Bannister, J. J. Kavelaars, Jean-Marc Petit, Kathryn Volk   +6 more
doaj   +1 more source

Influences of Non‐Oberbeck–Boussinesq Effects on Tracer Transport in Icy Ocean Worlds

Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.
Abstract The subsurface oceans on icy satellites are potentially habitable. To understand their habitability, we need to know how tracers with various lifetimes distribute. Convection is the main vehicle for tracer transport, and we expect convection on icy satellites to differ from regular rotating convection, because as pressure increases, water's ...
Shuang Wang, Wanying Kang
wiley   +1 more source

Stellar occultations by trans-Neptunian objects

The Astronomy and Astrophysics Review
Stellar occultations provide a powerful tool to explore objects of the outer solar system. The Gaia mission now provides milli-arcsec accuracy on the predictions of these events and makes possible observations that were previously unthinkable. Occultations return kilometric accuracies on the three-dimensional shape of bodies irrespective of their ...
Bruno Sicardy, Felipe Braga-Ribas, Marc W. Buie, José Luis Ortiz, Françoise Roques   +4 more
openaire   +3 more sources

Ceres: Organic‐Rich Sites of Exogenic Origin?

AGU Advances, Volume 6, Issue 1, February 2025.
Abstract Ceres, the largest object in the asteroid belt, is the only potential ocean world in the inner Solar System. Previous studies identified deposits of aliphatic organics in and around the Ernutet crater, and at small locations at Inamahari and Urvara craters. The origin of organics, either endogenic or exogenic, in these fresh exposures is still
R. Sarkar, A. Nathues, M. Hoffmann, E. Cloutis, K. Mengel, P. Singh, G. Thangjam, J. Hernandez, S. Karunatillake, M. Coutelier   +9 more
wiley   +1 more source

Chapter 7 - Trans-Neptunian objects and Centaurs at thermal wavelengths

, 2020
The thermal emission of Trans-Neptunian objects and Centaurs has been observed at mid- and far-infrared wavelengths—with the biggest contributions coming from the Spitzer and Herschel space observatories—and the brightest ones also at submillimeter and ...
Emmanuel Lellouch, Müller, T., Thomas Müller, Müller, Thomas, Lellouch, Emmanuel, Fornasier, S., Sonia Fornasier, Lellouch, E., Fornasier, Sonia   +8 more
core   +1 more source

A Spiral Structure in the Inner Oort Cloud

The Astrophysical Journal
As the Galactic tide acts to decouple bodies from the scattered disk it creates a spiral structure in physical space that is roughly 15,000 au in length. The spiral is long-lived and persists in the inner Oort cloud to the present time.
David Nesvorný, Luke Dones, David Vokrouhlický, Hal F. Levison, Cristian Beaugé, Jacqueline Faherty, Carter Emmart, Jon P. Parker   +7 more
doaj   +1 more source