Results 81 to 90 of about 2,093,691 (201)

Equilibrium Shapes of Large Trans-Neptunian Objects [PDF]

The Astrophysical Journal Letters, 2017
Abstract The large trans-Neptunian objects (TNO) with radii larger than 400 km are thought to be in hydrostatic equilibrium. Their shapes can provide clues regarding their internal structures that would reveal information on their formation and evolution.
Rambaux, Nicolas, Baguet, Daniel, Chambat, Fréderic, Castillo-Rogez, Julie   +3 more
openaire   +3 more sources

Beyond Point Masses. IV. Trans-Neptunian Object Altjira Is Likely a Hierarchical Triple Discovered through Non-Keplerian Motion

The Planetary Science Journal
Dynamically studying trans-Neptunian object (TNO) binaries allows us to measure masses and orbits. Most of the known objects appear to have only two components, except (47171) Lempo, which is the single known hierarchical triple system with three similar-
Maia A Nelsen, Darin Ragozzine, Benjamin C. N. Proudfoot, William G. Giforos, Will Grundy   +4 more
doaj   +1 more source

Maximum Likelihood Systematic Effect Modeling and Matched Filtering to Detect Trans-Neptunian Objects with TESS [PDF]

, 2022
We present a pipeline for searching for trans-Neptunian objects (TNOs) using data from the TESS mission, that includes a novel optimization-based framework for subtracting the effects of scattered light and pointing jitter.
Ganapathi, Varun
core   +1 more source

Characterizing neutral Trans-Neptunian Objects [PDF]

, 2013
Trans-Neptunian Objects (TNOs) are small bodies with orbits beyond Neptune (3050 AU). TNOs are cold and small enough to have remained relatively well-preserved, therefore providing our best observable proxy to the early solar system.
Sonnett, Sarah
core   +1 more source

State of Ammonium Hydrosulfide (NH4SH) Salt on Icy Bodies in the Trans-Neptunian Space

The Astrophysical Journal
Ammonium hydrosulfide (NH _4 SH) is expected to be widespread on trans-Neptunian objects (TNOs), considering the predicted high abundance of hydrogen sulfide (H _2 S) in the presolar nebula and the detection of ammonia (NH _3 ) on TNOs such as Charon and
Chaojiang Zhang, Zesen Wang, Jia Wang, Leslie A. Young, Ralf I. Kaiser   +4 more
doaj   +1 more source

The DECam Ecliptic Exploration Project (DEEP). III. Survey Characterization and Simulation Methods

The Astronomical Journal
We present a detailed study of the observational biases of the DECam Ecliptic Exploration Project’s B1 data release and survey simulation software that enables direct statistical comparisons between models and our data.
Pedro H. Bernardinelli, Hayden Smotherman, Zachary Langford, Stephen K. N. Portillo, Andrew J. Connolly, J. Bryce Kalmbach, Steven Stetzler, Mario Jurić, William J. Oldroyd, Hsing Wen Lin, Fred C. Adams, Colin Orion Chandler, Cesar Fuentes, David W. Gerdes, Matthew J. Holman, Larissa Markwardt, Andrew McNeill, Michael Mommert, Kevin J. Napier, Matthew J. Payne, Darin Ragozzine, Andrew S. Rivkin, Hilke Schlichting, Scott S. Sheppard, Ryder Strauss, David E. Trilling, Chadwick A. Trujillo   +26 more
doaj   +1 more source

Probing close-in satellites of trans-Neptunian objects through thermal and direct size measurements

Astronomy & Astrophysics
Context. Trans-Neptunian objects are distant bodies that retain valuable information about the origin and evolution of the Solar System. Many of these objects constitute binary systems.
Gómez-Limón J. M., Leiva R., Ortiz J. L., Santos-Sanz P., Kretlow M., Kilic Y., Rizos J. L., Álvarez-Candal A., Müller T.   +8 more
doaj   +1 more source

Changes in a scientific concept: what is a planet? [PDF]

, 2007
The need for an explicit and exact definition of a planet has arise out of the growing rate of discovery of Trans-Neptunian Objects (TNOs) with physical and orbital properties comparable with those of Pluto, the smallest planet of the solar system.
Murzi, Mauro
core  

Chemical Evolution of Isotopically Labeled Carbon Dioxide (13CO2) Ice Exposed to Ionizing Radiation and Implications for Trans-Neptunian Objects

The Astrophysical Journal
We present results on the radiation chemistry of isotopically labeled carbon dioxide ( ^13 CO _2 ) ices induced by energetic electrons at 40 and 10 K to simulate the chemical evolution of carbon dioxide on trans-Neptunian objects exposed to galactic ...
Chaojiang Zhang, Leslie A. Young, Ralf I. Kaiser   +2 more
doaj   +1 more source

Misaligned Rings Around Minor Planets with Moons

Universe
Recent observations have confirmed the existence of rings around minor bodies in the outer solar system. These objects may possess satellites as well. Here, we analytically investigate the interaction between such rings and satellites.
Barnabás Deme
doaj   +1 more source